[PATCH AUTOSEL 6.1 01/13] ksmbd: override fsids for share path check

[PATCH AUTOSEL 6.1 01/13] ksmbd: override fsids for share path check

[Sasha Levin]

From: Namjae Jeon <linkinjeon@kernel.org>

[ Upstream commit a018c1b636e79b60149b41151ded7c2606d8606e ]

Sangsoo reported that a DAC denial error occurred when accessing
files through the ksmbd thread. This patch override fsids for share
path check.

Reported-by: Sangsoo Lee <constant.lee@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/smb/server/mgmt/share_config.c | 15 ++++++++++++---
 fs/smb/server/mgmt/share_config.h |  4 +++-
 fs/smb/server/mgmt/tree_connect.c |  9 +++++----
 fs/smb/server/mgmt/tree_connect.h |  4 ++--
 fs/smb/server/smb2pdu.c           |  2 +-
 fs/smb/server/smb_common.c        |  9 +++++++--
 fs/smb/server/smb_common.h        |  2 ++
 7 files changed, 32 insertions(+), 13 deletions(-)

diff --git a/fs/smb/server/mgmt/share_config.c b/fs/smb/server/mgmt/share_config.c
index e0a6b758094fc..d8d03070ae44b 100644
--- a/fs/smb/server/mgmt/share_config.c
+++ b/fs/smb/server/mgmt/share_config.c
@@ -15,6 +15,7 @@
 #include "share_config.h"
 #include "user_config.h"
 #include "user_session.h"
+#include "../connection.h"
 #include "../transport_ipc.h"
 #include "../misc.h"
 
@@ -120,12 +121,13 @@ static int parse_veto_list(struct ksmbd_share_config *share,
 	return 0;
 }
 
-static struct ksmbd_share_config *share_config_request(struct unicode_map *um,
+static struct ksmbd_share_config *share_config_request(struct ksmbd_work *work,
 						       const char *name)
 {
 	struct ksmbd_share_config_response *resp;
 	struct ksmbd_share_config *share = NULL;
 	struct ksmbd_share_config *lookup;
+	struct unicode_map *um = work->conn->um;
 	int ret;
 
 	resp = ksmbd_ipc_share_config_request(name);
@@ -181,7 +183,14 @@ static struct ksmbd_share_config *share_config_request(struct unicode_map *um,
 				      KSMBD_SHARE_CONFIG_VETO_LIST(resp),
 				      resp->veto_list_sz);
 		if (!ret && share->path) {
+			if (__ksmbd_override_fsids(work, share)) {
+				kill_share(share);
+				share = NULL;
+				goto out;
+			}
+
 			ret = kern_path(share->path, 0, &share->vfs_path);
+			ksmbd_revert_fsids(work);
 			if (ret) {
 				ksmbd_debug(SMB, "failed to access '%s'\n",
 					    share->path);
@@ -214,7 +223,7 @@ static struct ksmbd_share_config *share_config_request(struct unicode_map *um,
 	return share;
 }
 
-struct ksmbd_share_config *ksmbd_share_config_get(struct unicode_map *um,
+struct ksmbd_share_config *ksmbd_share_config_get(struct ksmbd_work *work,
 						  const char *name)
 {
 	struct ksmbd_share_config *share;
@@ -227,7 +236,7 @@ struct ksmbd_share_config *ksmbd_share_config_get(struct unicode_map *um,
 
 	if (share)
 		return share;
-	return share_config_request(um, name);
+	return share_config_request(work, name);
 }
 
 bool ksmbd_share_veto_filename(struct ksmbd_share_config *share,
diff --git a/fs/smb/server/mgmt/share_config.h b/fs/smb/server/mgmt/share_config.h
index 5f591751b9236..d4ac2dd4de204 100644
--- a/fs/smb/server/mgmt/share_config.h
+++ b/fs/smb/server/mgmt/share_config.h
@@ -11,6 +11,8 @@
 #include <linux/path.h>
 #include <linux/unicode.h>
 
+struct ksmbd_work;
+
 struct ksmbd_share_config {
 	char			*name;
 	char			*path;
@@ -68,7 +70,7 @@ static inline void ksmbd_share_config_put(struct ksmbd_share_config *share)
 	__ksmbd_share_config_put(share);
 }
 
-struct ksmbd_share_config *ksmbd_share_config_get(struct unicode_map *um,
+struct ksmbd_share_config *ksmbd_share_config_get(struct ksmbd_work *work,
 						  const char *name);
 bool ksmbd_share_veto_filename(struct ksmbd_share_config *share,
 			       const char *filename);
diff --git a/fs/smb/server/mgmt/tree_connect.c b/fs/smb/server/mgmt/tree_connect.c
index d2c81a8a11dda..94a52a75014a4 100644
--- a/fs/smb/server/mgmt/tree_connect.c
+++ b/fs/smb/server/mgmt/tree_connect.c
@@ -16,17 +16,18 @@
 #include "user_session.h"
 
 struct ksmbd_tree_conn_status
-ksmbd_tree_conn_connect(struct ksmbd_conn *conn, struct ksmbd_session *sess,
-			const char *share_name)
+ksmbd_tree_conn_connect(struct ksmbd_work *work, const char *share_name)
 {
 	struct ksmbd_tree_conn_status status = {-ENOENT, NULL};
 	struct ksmbd_tree_connect_response *resp = NULL;
 	struct ksmbd_share_config *sc;
 	struct ksmbd_tree_connect *tree_conn = NULL;
 	struct sockaddr *peer_addr;
+	struct ksmbd_conn *conn = work->conn;
+	struct ksmbd_session *sess = work->sess;
 	int ret;
 
-	sc = ksmbd_share_config_get(conn->um, share_name);
+	sc = ksmbd_share_config_get(work, share_name);
 	if (!sc)
 		return status;
 
@@ -61,7 +62,7 @@ ksmbd_tree_conn_connect(struct ksmbd_conn *conn, struct ksmbd_session *sess,
 		struct ksmbd_share_config *new_sc;
 
 		ksmbd_share_config_del(sc);
-		new_sc = ksmbd_share_config_get(conn->um, share_name);
+		new_sc = ksmbd_share_config_get(work, share_name);
 		if (!new_sc) {
 			pr_err("Failed to update stale share config\n");
 			status.ret = -ESTALE;
diff --git a/fs/smb/server/mgmt/tree_connect.h b/fs/smb/server/mgmt/tree_connect.h
index 6377a70b811c8..a42cdd0510411 100644
--- a/fs/smb/server/mgmt/tree_connect.h
+++ b/fs/smb/server/mgmt/tree_connect.h
@@ -13,6 +13,7 @@
 struct ksmbd_share_config;
 struct ksmbd_user;
 struct ksmbd_conn;
+struct ksmbd_work;
 
 enum {
 	TREE_NEW = 0,
@@ -50,8 +51,7 @@ static inline int test_tree_conn_flag(struct ksmbd_tree_connect *tree_conn,
 struct ksmbd_session;
 
 struct ksmbd_tree_conn_status
-ksmbd_tree_conn_connect(struct ksmbd_conn *conn, struct ksmbd_session *sess,
-			const char *share_name);
+ksmbd_tree_conn_connect(struct ksmbd_work *work, const char *share_name);
 void ksmbd_tree_connect_put(struct ksmbd_tree_connect *tcon);
 
 int ksmbd_tree_conn_disconnect(struct ksmbd_session *sess,
diff --git a/fs/smb/server/smb2pdu.c b/fs/smb/server/smb2pdu.c
index 4ba6bf1535da1..d97c7982bb3ee 100644
--- a/fs/smb/server/smb2pdu.c
+++ b/fs/smb/server/smb2pdu.c
@@ -1971,7 +1971,7 @@ int smb2_tree_connect(struct ksmbd_work *work)
 	ksmbd_debug(SMB, "tree connect request for tree %s treename %s\n",
 		    name, treename);
 
-	status = ksmbd_tree_conn_connect(conn, sess, name);
+	status = ksmbd_tree_conn_connect(work, name);
 	if (status.ret == KSMBD_TREE_CONN_STATUS_OK)
 		rsp->hdr.Id.SyncId.TreeId = cpu_to_le32(status.tree_conn->id);
 	else
diff --git a/fs/smb/server/smb_common.c b/fs/smb/server/smb_common.c
index e90a1e8c1951d..bdcdc0fc9cad5 100644
--- a/fs/smb/server/smb_common.c
+++ b/fs/smb/server/smb_common.c
@@ -729,10 +729,10 @@ bool is_asterisk(char *p)
 	return p && p[0] == '*';
 }
 
-int ksmbd_override_fsids(struct ksmbd_work *work)
+int __ksmbd_override_fsids(struct ksmbd_work *work,
+		struct ksmbd_share_config *share)
 {
 	struct ksmbd_session *sess = work->sess;
-	struct ksmbd_share_config *share = work->tcon->share_conf;
 	struct cred *cred;
 	struct group_info *gi;
 	unsigned int uid;
@@ -772,6 +772,11 @@ int ksmbd_override_fsids(struct ksmbd_work *work)
 	return 0;
 }
 
+int ksmbd_override_fsids(struct ksmbd_work *work)
+{
+	return __ksmbd_override_fsids(work, work->tcon->share_conf);
+}
+
 void ksmbd_revert_fsids(struct ksmbd_work *work)
 {
 	const struct cred *cred;
diff --git a/fs/smb/server/smb_common.h b/fs/smb/server/smb_common.h
index f1092519c0c28..4a3148b0167f5 100644
--- a/fs/smb/server/smb_common.h
+++ b/fs/smb/server/smb_common.h
@@ -447,6 +447,8 @@ int ksmbd_extract_shortname(struct ksmbd_conn *conn,
 int ksmbd_smb_negotiate_common(struct ksmbd_work *work, unsigned int command);
 
 int ksmbd_smb_check_shared_mode(struct file *filp, struct ksmbd_file *curr_fp);
+int __ksmbd_override_fsids(struct ksmbd_work *work,
+			   struct ksmbd_share_config *share);
 int ksmbd_override_fsids(struct ksmbd_work *work);
 void ksmbd_revert_fsids(struct ksmbd_work *work);
 
-- 
2.43.0

[PATCH AUTOSEL 6.1 02/13] ksmbd: override fsids for smb2_query_info()

[Sasha Levin]

From: Namjae Jeon <linkinjeon@kernel.org>

[ Upstream commit f6bd41280a44dcc2e0a25ed72617d25f586974a7 ]

Sangsoo reported that a DAC denial error occurred when accessing
files through the ksmbd thread. This patch override fsids for
smb2_query_info().

Reported-by: Sangsoo Lee <constant.lee@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/smb/server/smb2pdu.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/fs/smb/server/smb2pdu.c b/fs/smb/server/smb2pdu.c
index d97c7982bb3ee..d018148913615 100644
--- a/fs/smb/server/smb2pdu.c
+++ b/fs/smb/server/smb2pdu.c
@@ -5321,6 +5321,11 @@ int smb2_query_info(struct ksmbd_work *work)
 
 	ksmbd_debug(SMB, "GOT query info request\n");
 
+	if (ksmbd_override_fsids(work)) {
+		rc = -ENOMEM;
+		goto err_out;
+	}
+
 	switch (req->InfoType) {
 	case SMB2_O_INFO_FILE:
 		ksmbd_debug(SMB, "GOT SMB2_O_INFO_FILE\n");
@@ -5339,6 +5344,7 @@ int smb2_query_info(struct ksmbd_work *work)
 			    req->InfoType);
 		rc = -EOPNOTSUPP;
 	}
+	ksmbd_revert_fsids(work);
 
 	if (!rc) {
 		rsp->StructureSize = cpu_to_le16(9);
@@ -5348,6 +5354,7 @@ int smb2_query_info(struct ksmbd_work *work)
 					le32_to_cpu(rsp->OutputBufferLength));
 	}
 
+err_out:
 	if (rc < 0) {
 		if (rc == -EACCES)
 			rsp->hdr.Status = STATUS_ACCESS_DENIED;
-- 
2.43.0

[PATCH AUTOSEL 6.1 03/13] usbnet: ipheth: race between ipheth_close and error handling

[Sasha Levin]

From: Oliver Neukum <oneukum@suse.com>

[ Upstream commit e5876b088ba03a62124266fa20d00e65533c7269 ]

ipheth_sndbulk_callback() can submit carrier_work
as a part of its error handling. That means that
the driver must make sure that the work is cancelled
after it has made sure that no more URB can terminate
with an error condition.

Hence the order of actions in ipheth_close() needs
to be inverted.

Signed-off-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Foster Snowhill <forst@pen.gy>
Tested-by: Georgi Valkov <gvalkov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/usb/ipheth.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/usb/ipheth.c b/drivers/net/usb/ipheth.c
index 6a769df0b4213..13381d87eeb09 100644
--- a/drivers/net/usb/ipheth.c
+++ b/drivers/net/usb/ipheth.c
@@ -353,8 +353,8 @@ static int ipheth_close(struct net_device *net)
 {
 	struct ipheth_device *dev = netdev_priv(net);
 
-	cancel_delayed_work_sync(&dev->carrier_work);
 	netif_stop_queue(net);
+	cancel_delayed_work_sync(&dev->carrier_work);
 	return 0;
 }
 
-- 
2.43.0

[PATCH AUTOSEL 6.1 04/13] usbnet: ipheth: fix carrier detection in modes 1 and 4

[Sasha Levin]

From: Foster Snowhill <forst@pen.gy>

[ Upstream commit 67927a1b255d883881be9467508e0af9a5e0be9d ]

Apart from the standard "configurations", "interfaces" and "alternate
interface settings" in USB, iOS devices also have a notion of
"modes". In different modes, the device exposes a different set of
available configurations.

Depending on the iOS version, and depending on the current mode, the
length and contents of the carrier state control message differs:

* 1 byte (seen on iOS 4.2.1, 8.4):
    * 03: carrier off (mode 0)
    * 04: carrier on (mode 0)
* 3 bytes (seen on iOS 10.3.4, 15.7.6):
    * 03 03 03: carrier off (mode 0)
    * 04 04 03: carrier on (mode 0)
* 4 bytes (seen on iOS 16.5, 17.6):
    * 03 03 03 00: carrier off (mode 0)
    * 04 03 03 00: carrier off (mode 1)
    * 06 03 03 00: carrier off (mode 4)
    * 04 04 03 04: carrier on (mode 0 and 1)
    * 06 04 03 04: carrier on (mode 4)

Before this change, the driver always used the first byte of the
response to determine carrier state.

From this larger sample, the first byte seems to indicate the number of
available USB configurations in the current mode (with the exception of
the default mode 0), and in some cases (namely mode 1 and 4) does not
correlate with the carrier state.

Previous logic erroneously counted `04 03 03 00` as "carrier on" and
`06 04 03 04` as "carrier off" on iOS versions that support mode 1 and
mode 4 respectively.

Only modes 0, 1 and 4 expose the USB Ethernet interfaces necessary for
the ipheth driver.

Check the second byte of the control message where possible, and fall
back to checking the first byte on older iOS versions.

Signed-off-by: Foster Snowhill <forst@pen.gy>
Tested-by: Georgi Valkov <gvalkov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/usb/ipheth.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/usb/ipheth.c b/drivers/net/usb/ipheth.c
index 13381d87eeb09..17844c07305c3 100644
--- a/drivers/net/usb/ipheth.c
+++ b/drivers/net/usb/ipheth.c
@@ -253,13 +253,14 @@ static int ipheth_carrier_set(struct ipheth_device *dev)
 			0x02, /* index */
 			dev->ctrl_buf, IPHETH_CTRL_BUF_SIZE,
 			IPHETH_CTRL_TIMEOUT);
-	if (retval < 0) {
+	if (retval <= 0) {
 		dev_err(&dev->intf->dev, "%s: usb_control_msg: %d\n",
 			__func__, retval);
 		return retval;
 	}
 
-	if (dev->ctrl_buf[0] == IPHETH_CARRIER_ON) {
+	if ((retval == 1 && dev->ctrl_buf[0] == IPHETH_CARRIER_ON) ||
+	    (retval >= 2 && dev->ctrl_buf[1] == IPHETH_CARRIER_ON)) {
 		netif_carrier_on(dev->net);
 		if (dev->tx_urb->status != -EINPROGRESS)
 			netif_wake_queue(dev->net);
-- 
2.43.0

[PATCH AUTOSEL 6.1 05/13] net: ethernet: use ip_hdrlen() instead of bit shift

[Sasha Levin]

From: Moon Yeounsu <yyyynoom@gmail.com>

[ Upstream commit 9a039eeb71a42c8b13408a1976e300f3898e1be0 ]

`ip_hdr(skb)->ihl << 2` is the same as `ip_hdrlen(skb)`
Therefore, we should use a well-defined function not a bit shift
to find the header length.

It also compresses two lines to a single line.

Signed-off-by: Moon Yeounsu <yyyynoom@gmail.com>
Reviewed-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/jme.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/jme.c b/drivers/net/ethernet/jme.c
index 1732ec3c3dbdc..a718207988f2c 100644
--- a/drivers/net/ethernet/jme.c
+++ b/drivers/net/ethernet/jme.c
@@ -946,15 +946,13 @@ jme_udpsum(struct sk_buff *skb)
 	if (skb->protocol != htons(ETH_P_IP))
 		return csum;
 	skb_set_network_header(skb, ETH_HLEN);
-	if ((ip_hdr(skb)->protocol != IPPROTO_UDP) ||
-	    (skb->len < (ETH_HLEN +
-			(ip_hdr(skb)->ihl << 2) +
-			sizeof(struct udphdr)))) {
+
+	if (ip_hdr(skb)->protocol != IPPROTO_UDP ||
+	    skb->len < (ETH_HLEN + ip_hdrlen(skb) + sizeof(struct udphdr))) {
 		skb_reset_network_header(skb);
 		return csum;
 	}
-	skb_set_transport_header(skb,
-			ETH_HLEN + (ip_hdr(skb)->ihl << 2));
+	skb_set_transport_header(skb, ETH_HLEN + ip_hdrlen(skb));
 	csum = udp_hdr(skb)->check;
 	skb_reset_transport_header(skb);
 	skb_reset_network_header(skb);
-- 
2.43.0

[PATCH AUTOSEL 6.1 06/13] drm: panel-orientation-quirks: Add quirk for Ayn Loki Zero

[Sasha Levin]

From: Bouke Sybren Haarsma <boukehaarsma23@gmail.com>

[ Upstream commit b86aa4140f6a8f01f35bfb05af60e01a55b48803 ]

Add quirk orientation for the Ayn Loki Zero.

This also has been tested/used by the JELOS team.

Signed-off-by: Bouke Sybren Haarsma <boukehaarsma23@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240728124731.168452-2-boukehaarsma23@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/drm_panel_orientation_quirks.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/drm_panel_orientation_quirks.c b/drivers/gpu/drm/drm_panel_orientation_quirks.c
index 5db52d6c5c35c..21f2f3abf90f0 100644
--- a/drivers/gpu/drm/drm_panel_orientation_quirks.c
+++ b/drivers/gpu/drm/drm_panel_orientation_quirks.c
@@ -208,6 +208,12 @@ static const struct dmi_system_id orientation_data[] = {
 		  DMI_MATCH(DMI_BOARD_NAME, "KUN"),
 		},
 		.driver_data = (void *)&lcd1600x2560_rightside_up,
+	}, {	/* AYN Loki Zero */
+		.matches = {
+			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ayn"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Loki Zero"),
+		},
+		.driver_data = (void *)&lcd1080x1920_leftside_up,
 	}, {	/* Chuwi HiBook (CWI514) */
 		.matches = {
 			DMI_MATCH(DMI_BOARD_VENDOR, "Hampoo"),
-- 
2.43.0

[PATCH AUTOSEL 6.1 07/13] drm: panel-orientation-quirks: Add quirk for Ayn Loki Max

[Sasha Levin]

From: Bouke Sybren Haarsma <boukehaarsma23@gmail.com>

[ Upstream commit 2c71c8459c8ca66bd8f597effaac892ee8448a9f ]

Add quirk orientation for Ayn Loki Max model.

This has been tested by JELOS team that uses their
own patched kernel for a while now and confirmed by
users in the ChimeraOS discord servers.

Signed-off-by: Bouke Sybren Haarsma <boukehaarsma23@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240728124731.168452-3-boukehaarsma23@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/drm_panel_orientation_quirks.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/drm_panel_orientation_quirks.c b/drivers/gpu/drm/drm_panel_orientation_quirks.c
index 21f2f3abf90f0..df402f6c5dc98 100644
--- a/drivers/gpu/drm/drm_panel_orientation_quirks.c
+++ b/drivers/gpu/drm/drm_panel_orientation_quirks.c
@@ -208,6 +208,12 @@ static const struct dmi_system_id orientation_data[] = {
 		  DMI_MATCH(DMI_BOARD_NAME, "KUN"),
 		},
 		.driver_data = (void *)&lcd1600x2560_rightside_up,
+	}, {    /* AYN Loki Max */
+		.matches = {
+			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ayn"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Loki Max"),
+		},
+		.driver_data = (void *)&lcd1080x1920_leftside_up,
 	}, {	/* AYN Loki Zero */
 		.matches = {
 			DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ayn"),
-- 
2.43.0

[PATCH AUTOSEL 6.1 08/13] net: phy: vitesse: repair vsc73xx autonegotiation

[Sasha Levin]

From: Pawel Dembicki <paweldembicki@gmail.com>

[ Upstream commit de7a670f8defe4ed2115552ad23dea0f432f7be4 ]

When the vsc73xx mdio bus work properly, the generic autonegotiation
configuration works well.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/phy/vitesse.c | 14 --------------
 1 file changed, 14 deletions(-)

diff --git a/drivers/net/phy/vitesse.c b/drivers/net/phy/vitesse.c
index 897b979ec03c8..3b5fcaf0dd36d 100644
--- a/drivers/net/phy/vitesse.c
+++ b/drivers/net/phy/vitesse.c
@@ -237,16 +237,6 @@ static int vsc739x_config_init(struct phy_device *phydev)
 	return 0;
 }
 
-static int vsc73xx_config_aneg(struct phy_device *phydev)
-{
-	/* The VSC73xx switches does not like to be instructed to
-	 * do autonegotiation in any way, it prefers that you just go
-	 * with the power-on/reset defaults. Writing some registers will
-	 * just make autonegotiation permanently fail.
-	 */
-	return 0;
-}
-
 /* This adds a skew for both TX and RX clocks, so the skew should only be
  * applied to "rgmii-id" interfaces. It may not work as expected
  * on "rgmii-txid", "rgmii-rxid" or "rgmii" interfaces.
@@ -444,7 +434,6 @@ static struct phy_driver vsc82xx_driver[] = {
 	.phy_id_mask    = 0x000ffff0,
 	/* PHY_GBIT_FEATURES */
 	.config_init    = vsc738x_config_init,
-	.config_aneg    = vsc73xx_config_aneg,
 	.read_page      = vsc73xx_read_page,
 	.write_page     = vsc73xx_write_page,
 }, {
@@ -453,7 +442,6 @@ static struct phy_driver vsc82xx_driver[] = {
 	.phy_id_mask    = 0x000ffff0,
 	/* PHY_GBIT_FEATURES */
 	.config_init    = vsc738x_config_init,
-	.config_aneg    = vsc73xx_config_aneg,
 	.read_page      = vsc73xx_read_page,
 	.write_page     = vsc73xx_write_page,
 }, {
@@ -462,7 +450,6 @@ static struct phy_driver vsc82xx_driver[] = {
 	.phy_id_mask    = 0x000ffff0,
 	/* PHY_GBIT_FEATURES */
 	.config_init    = vsc739x_config_init,
-	.config_aneg    = vsc73xx_config_aneg,
 	.read_page      = vsc73xx_read_page,
 	.write_page     = vsc73xx_write_page,
 }, {
@@ -471,7 +458,6 @@ static struct phy_driver vsc82xx_driver[] = {
 	.phy_id_mask    = 0x000ffff0,
 	/* PHY_GBIT_FEATURES */
 	.config_init    = vsc739x_config_init,
-	.config_aneg    = vsc73xx_config_aneg,
 	.read_page      = vsc73xx_read_page,
 	.write_page     = vsc73xx_write_page,
 }, {
-- 
2.43.0

[PATCH AUTOSEL 6.1 09/13] powerpc/mm: Fix boot warning with hugepages and CONFIG_DEBUG_VIRTUAL

[Sasha Levin]

From: Christophe Leroy <christophe.leroy@csgroup.eu>

[ Upstream commit e7e846dc6c73fbc94ae8b4ec20d05627646416f2 ]

Booting with CONFIG_DEBUG_VIRTUAL leads to following warning when
passing hugepage reservation on command line:

  Kernel command line: hugepagesz=1g hugepages=1 hugepagesz=64m hugepages=1 hugepagesz=256m hugepages=1 noreboot
  HugeTLB: allocating 1 of page size 1.00 GiB failed.  Only allocated 0 hugepages.
  ------------[ cut here ]------------
  WARNING: CPU: 0 PID: 0 at arch/powerpc/include/asm/io.h:948 __alloc_bootmem_huge_page+0xd4/0x284
  Modules linked in:
  CPU: 0 PID: 0 Comm: swapper Not tainted 6.10.0-rc6-00396-g6b0e82791bd0-dirty #936
  Hardware name: MPC8544DS e500v2 0x80210030 MPC8544 DS
  NIP:  c1020240 LR: c10201d0 CTR: 00000000
  REGS: c13fdd30 TRAP: 0700   Not tainted  (6.10.0-rc6-00396-g6b0e82791bd0-dirty)
  MSR:  00021000 <CE,ME>  CR: 44084288  XER: 20000000

  GPR00: c10201d0 c13fde20 c130b560 e8000000 e8001000 00000000 00000000 c1420000
  GPR08: 00000000 00028001 00000000 00000004 44084282 01066ac0 c0eb7c9c efffe149
  GPR16: c0fc4228 0000005f ffffffff c0eb7d0c c0eb7cc0 c0eb7ce0 ffffffff 00000000
  GPR24: c1441cec efffe153 e8001000 c14240c0 00000000 c1441d64 00000000 e8000000
  NIP [c1020240] __alloc_bootmem_huge_page+0xd4/0x284
  LR [c10201d0] __alloc_bootmem_huge_page+0x64/0x284
  Call Trace:
  [c13fde20] [c10201d0] __alloc_bootmem_huge_page+0x64/0x284 (unreliable)
  [c13fde50] [c10207b8] hugetlb_hstate_alloc_pages+0x8c/0x3e8
  [c13fdeb0] [c1021384] hugepages_setup+0x240/0x2cc
  [c13fdef0] [c1000574] unknown_bootoption+0xfc/0x280
  [c13fdf30] [c0078904] parse_args+0x200/0x4c4
  [c13fdfa0] [c1000d9c] start_kernel+0x238/0x7d0
  [c13fdff0] [c0000434] set_ivor+0x12c/0x168
  Code: 554aa33e 7c042840 3ce0c142 80a7427c 5109a016 50caa016 7c9a2378 7fdcf378 4180000c 7c052040 41810160 7c095040 <0fe00000> 38c00000 40800108 3c60c0eb
  ---[ end trace 0000000000000000 ]---

This is due to virt_addr_valid() using high_memory before it is set.

high_memory is set in mem_init() using max_low_pfn, but max_low_pfn
is available long before, it is set in mem_topology_setup(). So just
like commit daa9ada2093e ("powerpc/mm: Fix boot crash with FLATMEM")
moved the setting of max_mapnr immediately after the call to
mem_topology_setup(), the same can be done for high_memory.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/62b69c4baad067093f39e7e60df0fe27a86b8d2a.1723100702.git.christophe.leroy@csgroup.eu
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/kernel/setup-common.c | 1 +
 arch/powerpc/mm/mem.c              | 2 --
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 59b4ac57bfaf7..56f6b958926d7 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -948,6 +948,7 @@ void __init setup_arch(char **cmdline_p)
 	mem_topology_setup();
 	/* Set max_mapnr before paging_init() */
 	set_max_mapnr(max_pfn);
+	high_memory = (void *)__va(max_low_pfn * PAGE_SIZE);
 
 	/*
 	 * Release secondary cpus out of their spinloops at 0x60 now that
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index c7599b1737099..40f4a31f001c2 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -287,8 +287,6 @@ void __init mem_init(void)
 	swiotlb_init(ppc_swiotlb_enable, ppc_swiotlb_flags);
 #endif
 
-	high_memory = (void *) __va(max_low_pfn * PAGE_SIZE);
-
 	kasan_late_init();
 
 	memblock_free_all();
-- 
2.43.0

[PATCH AUTOSEL 6.1 10/13] Squashfs: sanity check symbolic link size

[Sasha Levin]

From: Phillip Lougher <phillip@squashfs.org.uk>

[ Upstream commit 810ee43d9cd245d138a2733d87a24858a23f577d ]

Syzkiller reports a "KMSAN: uninit-value in pick_link" bug.

This is caused by an uninitialised page, which is ultimately caused
by a corrupted symbolic link size read from disk.

The reason why the corrupted symlink size causes an uninitialised
page is due to the following sequence of events:

1. squashfs_read_inode() is called to read the symbolic
   link from disk.  This assigns the corrupted value
   3875536935 to inode->i_size.

2. Later squashfs_symlink_read_folio() is called, which assigns
   this corrupted value to the length variable, which being a
   signed int, overflows producing a negative number.

3. The following loop that fills in the page contents checks that
   the copied bytes is less than length, which being negative means
   the loop is skipped, producing an uninitialised page.

This patch adds a sanity check which checks that the symbolic
link size is not larger than expected.

--

Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
Link: https://lore.kernel.org/r/20240811232821.13903-1-phillip@squashfs.org.uk
Reported-by: Lizhi Xu <lizhi.xu@windriver.com>
Reported-by: syzbot+24ac24ff58dc5b0d26b9@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/all/000000000000a90e8c061e86a76b@google.com/
V2: fix spelling mistake.
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/squashfs/inode.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/fs/squashfs/inode.c b/fs/squashfs/inode.c
index 24463145b3513..f31649080a881 100644
--- a/fs/squashfs/inode.c
+++ b/fs/squashfs/inode.c
@@ -276,8 +276,13 @@ int squashfs_read_inode(struct inode *inode, long long ino)
 		if (err < 0)
 			goto failed_read;
 
-		set_nlink(inode, le32_to_cpu(sqsh_ino->nlink));
 		inode->i_size = le32_to_cpu(sqsh_ino->symlink_size);
+		if (inode->i_size > PAGE_SIZE) {
+			ERROR("Corrupted symlink\n");
+			return -EINVAL;
+		}
+
+		set_nlink(inode, le32_to_cpu(sqsh_ino->nlink));
 		inode->i_op = &squashfs_symlink_inode_ops;
 		inode_nohighmem(inode);
 		inode->i_data.a_ops = &squashfs_symlink_aops;
-- 
2.43.0

[PATCH AUTOSEL 6.1 11/13] of/irq: Prevent device address out-of-bounds read in interrupt map walk

[Sasha Levin]

From: Stefan Wiehler <stefan.wiehler@nokia.com>

[ Upstream commit b739dffa5d570b411d4bdf4bb9b8dfd6b7d72305 ]

When of_irq_parse_raw() is invoked with a device address smaller than
the interrupt parent node (from #address-cells property), KASAN detects
the following out-of-bounds read when populating the initial match table
(dyndbg="func of_irq_parse_* +p"):

  OF: of_irq_parse_one: dev=/soc@0/picasso/watchdog, index=0
  OF:  parent=/soc@0/pci@878000000000/gpio0@17,0, intsize=2
  OF:  intspec=4
  OF: of_irq_parse_raw: ipar=/soc@0/pci@878000000000/gpio0@17,0, size=2
  OF:  -> addrsize=3
  ==================================================================
  BUG: KASAN: slab-out-of-bounds in of_irq_parse_raw+0x2b8/0x8d0
  Read of size 4 at addr ffffff81beca5608 by task bash/764

  CPU: 1 PID: 764 Comm: bash Tainted: G           O       6.1.67-484c613561-nokia_sm_arm64 #1
  Hardware name: Unknown Unknown Product/Unknown Product, BIOS 2023.01-12.24.03-dirty 01/01/2023
  Call trace:
   dump_backtrace+0xdc/0x130
   show_stack+0x1c/0x30
   dump_stack_lvl+0x6c/0x84
   print_report+0x150/0x448
   kasan_report+0x98/0x140
   __asan_load4+0x78/0xa0
   of_irq_parse_raw+0x2b8/0x8d0
   of_irq_parse_one+0x24c/0x270
   parse_interrupts+0xc0/0x120
   of_fwnode_add_links+0x100/0x2d0
   fw_devlink_parse_fwtree+0x64/0xc0
   device_add+0xb38/0xc30
   of_device_add+0x64/0x90
   of_platform_device_create_pdata+0xd0/0x170
   of_platform_bus_create+0x244/0x600
   of_platform_notify+0x1b0/0x254
   blocking_notifier_call_chain+0x9c/0xd0
   __of_changeset_entry_notify+0x1b8/0x230
   __of_changeset_apply_notify+0x54/0xe4
   of_overlay_fdt_apply+0xc04/0xd94
   ...

  The buggy address belongs to the object at ffffff81beca5600
   which belongs to the cache kmalloc-128 of size 128
  The buggy address is located 8 bytes inside of
   128-byte region [ffffff81beca5600, ffffff81beca5680)

  The buggy address belongs to the physical page:
  page:00000000230d3d03 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1beca4
  head:00000000230d3d03 order:1 compound_mapcount:0 compound_pincount:0
  flags: 0x8000000000010200(slab|head|zone=2)
  raw: 8000000000010200 0000000000000000 dead000000000122 ffffff810000c300
  raw: 0000000000000000 0000000000200020 00000001ffffffff 0000000000000000
  page dumped because: kasan: bad access detected

  Memory state around the buggy address:
   ffffff81beca5500: 04 fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
   ffffff81beca5580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
  >ffffff81beca5600: 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                        ^
   ffffff81beca5680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
   ffffff81beca5700: 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc
  ==================================================================
  OF:  -> got it !

Prevent the out-of-bounds read by copying the device address into a
buffer of sufficient size.

Signed-off-by: Stefan Wiehler <stefan.wiehler@nokia.com>
Link: https://lore.kernel.org/r/20240812100652.3800963-1-stefan.wiehler@nokia.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/of/irq.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/of/irq.c b/drivers/of/irq.c
index 88c24d88c4b92..a8e306606c4bd 100644
--- a/drivers/of/irq.c
+++ b/drivers/of/irq.c
@@ -344,7 +344,8 @@ int of_irq_parse_one(struct device_node *device, int index, struct of_phandle_ar
 	struct device_node *p;
 	const __be32 *addr;
 	u32 intsize;
-	int i, res;
+	int i, res, addr_len;
+	__be32 addr_buf[3] = { 0 };
 
 	pr_debug("of_irq_parse_one: dev=%pOF, index=%d\n", device, index);
 
@@ -353,13 +354,19 @@ int of_irq_parse_one(struct device_node *device, int index, struct of_phandle_ar
 		return of_irq_parse_oldworld(device, index, out_irq);
 
 	/* Get the reg property (if any) */
-	addr = of_get_property(device, "reg", NULL);
+	addr = of_get_property(device, "reg", &addr_len);
+
+	/* Prevent out-of-bounds read in case of longer interrupt parent address size */
+	if (addr_len > (3 * sizeof(__be32)))
+		addr_len = 3 * sizeof(__be32);
+	if (addr)
+		memcpy(addr_buf, addr, addr_len);
 
 	/* Try the new-style interrupts-extended first */
 	res = of_parse_phandle_with_args(device, "interrupts-extended",
 					"#interrupt-cells", index, out_irq);
 	if (!res)
-		return of_irq_parse_raw(addr, out_irq);
+		return of_irq_parse_raw(addr_buf, out_irq);
 
 	/* Look for the interrupt parent. */
 	p = of_irq_find_parent(device);
@@ -389,7 +396,7 @@ int of_irq_parse_one(struct device_node *device, int index, struct of_phandle_ar
 
 
 	/* Check if there are any interrupt-map translations to process */
-	res = of_irq_parse_raw(addr, out_irq);
+	res = of_irq_parse_raw(addr_buf, out_irq);
  out:
 	of_node_put(p);
 	return res;
-- 
2.43.0

[PATCH AUTOSEL 6.1 12/13] lib/generic-radix-tree.c: Fix rare race in __genradix_ptr_alloc()

[Sasha Levin]

From: Kent Overstreet <kent.overstreet@linux.dev>

[ Upstream commit b2f11c6f3e1fc60742673b8675c95b78447f3dae ]

If we need to increase the tree depth, allocate a new node, and then
race with another thread that increased the tree depth before us, we'll
still have a preallocated node that might be used later.

If we then use that node for a new non-root node, it'll still have a
pointer to the old root instead of being zeroed - fix this by zeroing it
in the cmpxchg failure path.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 lib/generic-radix-tree.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/generic-radix-tree.c b/lib/generic-radix-tree.c
index 7dfa88282b006..78f081d695d0b 100644
--- a/lib/generic-radix-tree.c
+++ b/lib/generic-radix-tree.c
@@ -131,6 +131,8 @@ void *__genradix_ptr_alloc(struct __genradix *radix, size_t offset,
 		if ((v = cmpxchg_release(&radix->root, r, new_root)) == r) {
 			v = new_root;
 			new_node = NULL;
+		} else {
+			new_node->children[0] = NULL;
 		}
 	}
 
-- 
2.43.0

[PATCH AUTOSEL 6.1 13/13] btrfs: update target inode's ctime on unlink

[Sasha Levin]

From: Jeff Layton <jlayton@kernel.org>

[ Upstream commit 3bc2ac2f8f0b78a13140fc72022771efe0c9b778 ]

Unlink changes the link count on the target inode. POSIX mandates that
the ctime must also change when this occurs.

According to https://pubs.opengroup.org/onlinepubs/9699919799/functions/unlink.html:

"Upon successful completion, unlink() shall mark for update the last data
 modification and last file status change timestamps of the parent
 directory. Also, if the file's link count is not 0, the last file status
 change timestamp of the file shall be marked for update."

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: David Sterba <dsterba@suse.com>
[ add link to the opengroup docs ]
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/btrfs/inode.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 10ded9c2be03b..817816626738e 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -4379,6 +4379,7 @@ static int __btrfs_unlink_inode(struct btrfs_trans_handle *trans,
 
 	btrfs_i_size_write(dir, dir->vfs_inode.i_size - name->len * 2);
 	inode_inc_iversion(&inode->vfs_inode);
+	inode_set_ctime_current(&inode->vfs_inode);
 	inode_inc_iversion(&dir->vfs_inode);
 	inode->vfs_inode.i_ctime = current_time(&inode->vfs_inode);
 	dir->vfs_inode.i_mtime = inode->vfs_inode.i_ctime;
-- 
2.43.0

[PATCH AUTOSEL 6.1 01/13] ksmbd: override fsids for share path check

[Sasha Levin]

From: Namjae Jeon <linkinjeon@kernel.org>

[ Upstream commit a018c1b636e79b60149b41151ded7c2606d8606e ]

Sangsoo reported that a DAC denial error occurred when accessing
files through the ksmbd thread. This patch override fsids for share
path check.

Reported-by: Sangsoo Lee <constant.lee@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/smb/server/mgmt/share_config.c | 15 ++++++++++++---
 fs/smb/server/mgmt/share_config.h |  4 +++-
 fs/smb/server/mgmt/tree_connect.c |  9 +++++----
 fs/smb/server/mgmt/tree_connect.h |  4 ++--
 fs/smb/server/smb2pdu.c           |  2 +-
 fs/smb/server/smb_common.c        |  9 +++++++--
 fs/smb/server/smb_common.h        |  2 ++
 7 files changed, 32 insertions(+), 13 deletions(-)

diff --git a/fs/smb/server/mgmt/share_config.c b/fs/smb/server/mgmt/share_config.c
index e0a6b758094fc..d8d03070ae44b 100644
--- a/fs/smb/server/mgmt/share_config.c
+++ b/fs/smb/server/mgmt/share_config.c
@@ -15,6 +15,7 @@
 #include "share_config.h"
 #include "user_config.h"
 #include "user_session.h"
+#include "../connection.h"
 #include "../transport_ipc.h"
 #include "../misc.h"
 
@@ -120,12 +121,13 @@ static int parse_veto_list(struct ksmbd_share_config *share,
 	return 0;
 }
 
-static struct ksmbd_share_config *share_config_request(struct unicode_map *um,
+static struct ksmbd_share_config *share_config_request(struct ksmbd_work *work,
 						       const char *name)
 {
 	struct ksmbd_share_config_response *resp;
 	struct ksmbd_share_config *share = NULL;
 	struct ksmbd_share_config *lookup;
+	struct unicode_map *um = work->conn->um;
 	int ret;
 
 	resp = ksmbd_ipc_share_config_request(name);
@@ -181,7 +183,14 @@ static struct ksmbd_share_config *share_config_request(struct unicode_map *um,
 				      KSMBD_SHARE_CONFIG_VETO_LIST(resp),
 				      resp->veto_list_sz);
 		if (!ret && share->path) {
+			if (__ksmbd_override_fsids(work, share)) {
+				kill_share(share);
+				share = NULL;
+				goto out;
+			}
+
 			ret = kern_path(share->path, 0, &share->vfs_path);
+			ksmbd_revert_fsids(work);
 			if (ret) {
 				ksmbd_debug(SMB, "failed to access '%s'\n",
 					    share->path);
@@ -214,7 +223,7 @@ static struct ksmbd_share_config *share_config_request(struct unicode_map *um,
 	return share;
 }
 
-struct ksmbd_share_config *ksmbd_share_config_get(struct unicode_map *um,
+struct ksmbd_share_config *ksmbd_share_config_get(struct ksmbd_work *work,
 						  const char *name)
 {
 	struct ksmbd_share_config *share;
@@ -227,7 +236,7 @@ struct ksmbd_share_config *ksmbd_share_config_get(struct unicode_map *um,
 
 	if (share)
 		return share;
-	return share_config_request(um, name);
+	return share_config_request(work, name);
 }
 
 bool ksmbd_share_veto_filename(struct ksmbd_share_config *share,
diff --git a/fs/smb/server/mgmt/share_config.h b/fs/smb/server/mgmt/share_config.h
index 5f591751b9236..d4ac2dd4de204 100644
--- a/fs/smb/server/mgmt/share_config.h
+++ b/fs/smb/server/mgmt/share_config.h
@@ -11,6 +11,8 @@
 #include <linux/path.h>
 #include <linux/unicode.h>
 
+struct ksmbd_work;
+
 struct ksmbd_share_config {
 	char			*name;
 	char			*path;
@@ -68,7 +70,7 @@ static inline void ksmbd_share_config_put(struct ksmbd_share_config *share)
 	__ksmbd_share_config_put(share);
 }
 
-struct ksmbd_share_config *ksmbd_share_config_get(struct unicode_map *um,
+struct ksmbd_share_config *ksmbd_share_config_get(struct ksmbd_work *work,
 						  const char *name);
 bool ksmbd_share_veto_filename(struct ksmbd_share_config *share,
 			       const char *filename);
diff --git a/fs/smb/server/mgmt/tree_connect.c b/fs/smb/server/mgmt/tree_connect.c
index d2c81a8a11dda..94a52a75014a4 100644
--- a/fs/smb/server/mgmt/tree_connect.c
+++ b/fs/smb/server/mgmt/tree_connect.c
@@ -16,17 +16,18 @@
 #include "user_session.h"
 
 struct ksmbd_tree_conn_status
-ksmbd_tree_conn_connect(struct ksmbd_conn *conn, struct ksmbd_session *sess,
-			const char *share_name)
+ksmbd_tree_conn_connect(struct ksmbd_work *work, const char *share_name)
 {
 	struct ksmbd_tree_conn_status status = {-ENOENT, NULL};
 	struct ksmbd_tree_connect_response *resp = NULL;
 	struct ksmbd_share_config *sc;
 	struct ksmbd_tree_connect *tree_conn = NULL;
 	struct sockaddr *peer_addr;
+	struct ksmbd_conn *conn = work->conn;
+	struct ksmbd_session *sess = work->sess;
 	int ret;
 
-	sc = ksmbd_share_config_get(conn->um, share_name);
+	sc = ksmbd_share_config_get(work, share_name);
 	if (!sc)
 		return status;
 
@@ -61,7 +62,7 @@ ksmbd_tree_conn_connect(struct ksmbd_conn *conn, struct ksmbd_session *sess,
 		struct ksmbd_share_config *new_sc;
 
 		ksmbd_share_config_del(sc);
-		new_sc = ksmbd_share_config_get(conn->um, share_name);
+		new_sc = ksmbd_share_config_get(work, share_name);
 		if (!new_sc) {
 			pr_err("Failed to update stale share config\n");
 			status.ret = -ESTALE;
diff --git a/fs/smb/server/mgmt/tree_connect.h b/fs/smb/server/mgmt/tree_connect.h
index 6377a70b811c8..a42cdd0510411 100644
--- a/fs/smb/server/mgmt/tree_connect.h
+++ b/fs/smb/server/mgmt/tree_connect.h
@@ -13,6 +13,7 @@
 struct ksmbd_share_config;
 struct ksmbd_user;
 struct ksmbd_conn;
+struct ksmbd_work;
 
 enum {
 	TREE_NEW = 0,
@@ -50,8 +51,7 @@ static inline int test_tree_conn_flag(struct ksmbd_tree_connect *tree_conn,
 struct ksmbd_session;
 
 struct ksmbd_tree_conn_status
-ksmbd_tree_conn_connect(struct ksmbd_conn *conn, struct ksmbd_session *sess,
-			const char *share_name);
+ksmbd_tree_conn_connect(struct ksmbd_work *work, const char *share_name);
 void ksmbd_tree_connect_put(struct ksmbd_tree_connect *tcon);
 
 int ksmbd_tree_conn_disconnect(struct ksmbd_session *sess,
diff --git a/fs/smb/server/smb2pdu.c b/fs/smb/server/smb2pdu.c
index 4ba6bf1535da1..d97c7982bb3ee 100644
--- a/fs/smb/server/smb2pdu.c
+++ b/fs/smb/server/smb2pdu.c
@@ -1971,7 +1971,7 @@ int smb2_tree_connect(struct ksmbd_work *work)
 	ksmbd_debug(SMB, "tree connect request for tree %s treename %s\n",
 		    name, treename);
 
-	status = ksmbd_tree_conn_connect(conn, sess, name);
+	status = ksmbd_tree_conn_connect(work, name);
 	if (status.ret == KSMBD_TREE_CONN_STATUS_OK)
 		rsp->hdr.Id.SyncId.TreeId = cpu_to_le32(status.tree_conn->id);
 	else
diff --git a/fs/smb/server/smb_common.c b/fs/smb/server/smb_common.c
index e90a1e8c1951d..bdcdc0fc9cad5 100644
--- a/fs/smb/server/smb_common.c
+++ b/fs/smb/server/smb_common.c
@@ -729,10 +729,10 @@ bool is_asterisk(char *p)
 	return p && p[0] == '*';
 }
 
-int ksmbd_override_fsids(struct ksmbd_work *work)
+int __ksmbd_override_fsids(struct ksmbd_work *work,
+		struct ksmbd_share_config *share)
 {
 	struct ksmbd_session *sess = work->sess;
-	struct ksmbd_share_config *share = work->tcon->share_conf;
 	struct cred *cred;
 	struct group_info *gi;
 	unsigned int uid;
@@ -772,6 +772,11 @@ int ksmbd_override_fsids(struct ksmbd_work *work)
 	return 0;
 }
 
+int ksmbd_override_fsids(struct ksmbd_work *work)
+{
+	return __ksmbd_override_fsids(work, work->tcon->share_conf);
+}
+
 void ksmbd_revert_fsids(struct ksmbd_work *work)
 {
 	const struct cred *cred;
diff --git a/fs/smb/server/smb_common.h b/fs/smb/server/smb_common.h
index f1092519c0c28..4a3148b0167f5 100644
--- a/fs/smb/server/smb_common.h
+++ b/fs/smb/server/smb_common.h
@@ -447,6 +447,8 @@ int ksmbd_extract_shortname(struct ksmbd_conn *conn,
 int ksmbd_smb_negotiate_common(struct ksmbd_work *work, unsigned int command);
 
 int ksmbd_smb_check_shared_mode(struct file *filp, struct ksmbd_file *curr_fp);
+int __ksmbd_override_fsids(struct ksmbd_work *work,
+			   struct ksmbd_share_config *share);
 int ksmbd_override_fsids(struct ksmbd_work *work);
 void ksmbd_revert_fsids(struct ksmbd_work *work);
 
-- 
2.43.0

[PATCH AUTOSEL 6.1 09/13] powerpc/mm: Fix boot warning with hugepages and CONFIG_DEBUG_VIRTUAL

[Sasha Levin]

From: Christophe Leroy <christophe.leroy@csgroup.eu>

[ Upstream commit e7e846dc6c73fbc94ae8b4ec20d05627646416f2 ]

Booting with CONFIG_DEBUG_VIRTUAL leads to following warning when
passing hugepage reservation on command line:

  Kernel command line: hugepagesz=1g hugepages=1 hugepagesz=64m hugepages=1 hugepagesz=256m hugepages=1 noreboot
  HugeTLB: allocating 1 of page size 1.00 GiB failed.  Only allocated 0 hugepages.
  ------------[ cut here ]------------
  WARNING: CPU: 0 PID: 0 at arch/powerpc/include/asm/io.h:948 __alloc_bootmem_huge_page+0xd4/0x284
  Modules linked in:
  CPU: 0 PID: 0 Comm: swapper Not tainted 6.10.0-rc6-00396-g6b0e82791bd0-dirty #936
  Hardware name: MPC8544DS e500v2 0x80210030 MPC8544 DS
  NIP:  c1020240 LR: c10201d0 CTR: 00000000
  REGS: c13fdd30 TRAP: 0700   Not tainted  (6.10.0-rc6-00396-g6b0e82791bd0-dirty)
  MSR:  00021000 <CE,ME>  CR: 44084288  XER: 20000000

  GPR00: c10201d0 c13fde20 c130b560 e8000000 e8001000 00000000 00000000 c1420000
  GPR08: 00000000 00028001 00000000 00000004 44084282 01066ac0 c0eb7c9c efffe149
  GPR16: c0fc4228 0000005f ffffffff c0eb7d0c c0eb7cc0 c0eb7ce0 ffffffff 00000000
  GPR24: c1441cec efffe153 e8001000 c14240c0 00000000 c1441d64 00000000 e8000000
  NIP [c1020240] __alloc_bootmem_huge_page+0xd4/0x284
  LR [c10201d0] __alloc_bootmem_huge_page+0x64/0x284
  Call Trace:
  [c13fde20] [c10201d0] __alloc_bootmem_huge_page+0x64/0x284 (unreliable)
  [c13fde50] [c10207b8] hugetlb_hstate_alloc_pages+0x8c/0x3e8
  [c13fdeb0] [c1021384] hugepages_setup+0x240/0x2cc
  [c13fdef0] [c1000574] unknown_bootoption+0xfc/0x280
  [c13fdf30] [c0078904] parse_args+0x200/0x4c4
  [c13fdfa0] [c1000d9c] start_kernel+0x238/0x7d0
  [c13fdff0] [c0000434] set_ivor+0x12c/0x168
  Code: 554aa33e 7c042840 3ce0c142 80a7427c 5109a016 50caa016 7c9a2378 7fdcf378 4180000c 7c052040 41810160 7c095040 <0fe00000> 38c00000 40800108 3c60c0eb
  ---[ end trace 0000000000000000 ]---

This is due to virt_addr_valid() using high_memory before it is set.

high_memory is set in mem_init() using max_low_pfn, but max_low_pfn
is available long before, it is set in mem_topology_setup(). So just
like commit daa9ada2093e ("powerpc/mm: Fix boot crash with FLATMEM")
moved the setting of max_mapnr immediately after the call to
mem_topology_setup(), the same can be done for high_memory.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/62b69c4baad067093f39e7e60df0fe27a86b8d2a.1723100702.git.christophe.leroy@csgroup.eu
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/powerpc/kernel/setup-common.c | 1 +
 arch/powerpc/mm/mem.c              | 2 --
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 59b4ac57bfaf7..56f6b958926d7 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -948,6 +948,7 @@ void __init setup_arch(char **cmdline_p)
 	mem_topology_setup();
 	/* Set max_mapnr before paging_init() */
 	set_max_mapnr(max_pfn);
+	high_memory = (void *)__va(max_low_pfn * PAGE_SIZE);
 
 	/*
 	 * Release secondary cpus out of their spinloops at 0x60 now that
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index c7599b1737099..40f4a31f001c2 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -287,8 +287,6 @@ void __init mem_init(void)
 	swiotlb_init(ppc_swiotlb_enable, ppc_swiotlb_flags);
 #endif
 
-	high_memory = (void *) __va(max_low_pfn * PAGE_SIZE);
-
 	kasan_late_init();
 
 	memblock_free_all();
-- 
2.43.0