* [syzbot] [net?] WARNING in vmxnet3_probe_device
@ 2026-08-19 1:17 syzbot
2026-09-22 23:25 ` syzbot
0 siblings, 1 reply; 2+ messages in thread
From: syzbot @ 2026-08-19 1:17 UTC (permalink / raw)
To: andrew+netdev, bcm-kernel-feedback-list, davem, edumazet, kuba,
linux-kernel, netdev, pabeni, ronak.doshi, syzkaller-bugs
Hello,
syzbot found the following issue on:
HEAD commit: a5161661ae99 Merge tag 'sound-7.2' of git://git.kernel.org..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=10fb6279580000
kernel config: https://syzkaller.appspot.com/x/.config?x=ead6a6de2292ff28
dashboard link: https://syzkaller.appspot.com/bug?extid=e39090bc9b3cf457717f
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/d900f083ada3/non_bootable_disk-a5161661.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/495a21a014c3/vmlinux-a5161661.xz
kernel image: https://storage.googleapis.com/syzbot-assets/c83a709756a2/bzImage-a5161661.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+e39090bc9b3cf457717f@syzkaller.appspotmail.com
oom_control is deprecated and will be removed. Please report your usecase to linux-mm-@kvack.org if you depend on this functionality.
openvswitch: netlink: IP tunnel dst address not specified
------------[ cut here ]------------
vmxnet3 0000:00:00.0: rejecting DMA map of vmalloc memory
WARNING: ./include/linux/dma-mapping.h:524 at dma_map_single_attrs include/linux/dma-mapping.h:523 [inline], CPU#0: syz.0.0/5315
WARNING: ./include/linux/dma-mapping.h:524 at vmxnet3_probe_device+0xab8/0x2e70 drivers/net/vmxnet3/vmxnet3_drv.c:4047, CPU#0: syz.0.0/5315
Modules linked in:
CPU: 0 UID: 0 PID: 5315 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:dma_map_single_attrs include/linux/dma-mapping.h:523 [inline]
RIP: 0010:vmxnet3_probe_device+0xb32/0x2e70 drivers/net/vmxnet3/vmxnet3_drv.c:4047
Code: 89 ff e8 d1 9e 02 fb 4d 8b 2f eb 15 e8 f7 68 93 fa 41 bf 04 00 00 00 41 b6 03 eb 7d e8 e7 68 93 fa 48 89 df 4c 89 f6 4c 89 ea <67> 48 0f b9 3a 48 8b 04 24 48 05 88 c4 00 00 49 89 c6 48 c1 e8 03
RSP: 0018:ffffc9000e24f820 EFLAGS: 00010246
RAX: 1ffff11003a4bc1a RBX: ffffffff90657ca0 RCX: dffffc0000000000
RDX: ffff88801fa17240 RSI: ffffffff8f872e20 RDI: ffffffff90657ca0
RBP: ffffc9000e24f9b0 R08: 0000000000000003 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed1003a4bcb3 R12: 0000000000000001
R13: ffff88801fa17240 R14: ffffffff8f872e20 R15: ffff88801d25e0d0
FS: 00007fcafb3346c0(0000) GS:ffff88808c53e000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcafb33d230 CR3: 000000001c30b000 CR4: 0000000000352ef0
Call Trace:
<TASK>
local_pci_probe drivers/pci/pci-driver.c:332 [inline]
pci_call_probe drivers/pci/pci-driver.c:394 [inline]
__pci_device_probe drivers/pci/pci-driver.c:455 [inline]
pci_device_probe+0x431/0xc90 drivers/pci/pci-driver.c:489
call_driver_probe drivers/base/dd.c:-1 [inline]
really_probe+0x254/0xae0 drivers/base/dd.c:706
__driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868
device_driver_attach+0xe0/0x1d0 drivers/base/dd.c:1203
bind_store+0x1d0/0x220 drivers/base/bus.c:267
kernfs_fop_write_iter+0x3a4/0x540 fs/kernfs/file.c:345
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fcafa39e0d9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fcafb333fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fcafa625fa0 RCX: 00007fcafa39e0d9
RDX: 000000000000000c RSI: 0000200000000140 RDI: 000000000000000a
RBP: 00007fcafa435024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fcafa626038 R14: 00007fcafa625fa0 R15: 00007ffc9d800cc8
</TASK>
----------------
Code disassembly (best guess):
0: 89 ff mov %edi,%edi
2: e8 d1 9e 02 fb call 0xfb029ed8
7: 4d 8b 2f mov (%r15),%r13
a: eb 15 jmp 0x21
c: e8 f7 68 93 fa call 0xfa936908
11: 41 bf 04 00 00 00 mov $0x4,%r15d
17: 41 b6 03 mov $0x3,%r14b
1a: eb 7d jmp 0x99
1c: e8 e7 68 93 fa call 0xfa936908
21: 48 89 df mov %rbx,%rdi
24: 4c 89 f6 mov %r14,%rsi
27: 4c 89 ea mov %r13,%rdx
* 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction
2f: 48 8b 04 24 mov (%rsp),%rax
33: 48 05 88 c4 00 00 add $0xc488,%rax
39: 49 89 c6 mov %rax,%r14
3c: 48 c1 e8 03 shr $0x3,%rax
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
If the report is already addressed, let syzbot know by replying with:
#syz fix: exact-commit-title
If you want to overwrite report's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)
If the report is a duplicate of another one, reply with:
#syz dup: exact-subject-of-another-report
If you want to undo deduplication, reply with:
#syz undup
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [syzbot] [net?] WARNING in vmxnet3_probe_device
2026-08-19 1:17 [syzbot] [net?] WARNING in vmxnet3_probe_device syzbot
@ 2026-09-22 23:25 ` syzbot
0 siblings, 0 replies; 2+ messages in thread
From: syzbot @ 2026-09-22 23:25 UTC (permalink / raw)
To: andrew+netdev, andrew, bcm-kernel-feedback-list, davem, edumazet,
kuba, linux-kernel, netdev, pabeni, ronak.doshi, syzkaller-bugs
syzbot has found a reproducer for the following issue on:
HEAD commit: c4e9f74da438 Merge tag 'v7.3-p5' of git://git.kernel.org/p..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=13688405580000
kernel config: https://syzkaller.appspot.com/x/.config?x=2b924f079099ba6e
dashboard link: https://syzkaller.appspot.com/bug?extid=e39090bc9b3cf457717f
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17c1b4c9580000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=144d7805580000
Downloadable assets:
disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/d900f083ada3/non_bootable_disk-c4e9f74d.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/1fb74cbe085d/vmlinux-c4e9f74d.xz
kernel image: https://storage.googleapis.com/syzbot-assets/ee8335337423/bzImage-c4e9f74d.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+e39090bc9b3cf457717f@syzkaller.appspotmail.com
------------[ cut here ]------------
vmxnet3 0000:00:00.0: rejecting DMA map of vmalloc memory
WARNING: ./include/linux/dma-mapping.h:532 at dma_map_single_attrs include/linux/dma-mapping.h:531 [inline], CPU#0: syz.0.17/5475
WARNING: ./include/linux/dma-mapping.h:532 at vmxnet3_probe_device+0xab8/0x2e70 drivers/net/vmxnet3/vmxnet3_drv.c:4047, CPU#0: syz.0.17/5475
Modules linked in:
CPU: 0 UID: 0 PID: 5475 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:dma_map_single_attrs include/linux/dma-mapping.h:531 [inline]
RIP: 0010:vmxnet3_probe_device+0xb32/0x2e70 drivers/net/vmxnet3/vmxnet3_drv.c:4047
Code: 89 ff e8 e1 b3 f6 fa 4d 8b 2f eb 15 e8 37 0c 85 fa 41 bf 04 00 00 00 41 b6 03 eb 7d e8 27 0c 85 fa 48 89 df 4c 89 f6 4c 89 ea <67> 48 0f b9 3a 48 8b 04 24 48 05 88 c4 00 00 49 89 c6 48 c1 e8 03
RSP: 0018:ffffc900046777c0 EFLAGS: 00010246
RAX: 1ffff11003ece01a RBX: ffffffff9087fdf0 RCX: dffffc0000000000
RDX: ffff88801f3c32a0 RSI: ffffffff8fa99b40 RDI: ffffffff9087fdf0
RBP: ffffc90004677950 R08: 0000000000000003 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed1003ece0b3 R12: 0000000000000001
R13: ffff88801f3c32a0 R14: ffffffff8fa99b40 R15: ffff88801f6700d0
FS: 00007f931f3316c0(0000) GS:ffff88808c2c0000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000043cf1000 CR4: 0000000000352ef0
Call Trace:
<TASK>
local_pci_probe drivers/pci/pci-driver.c:354 [inline]
pci_call_probe drivers/pci/pci-driver.c:416 [inline]
__pci_device_probe drivers/pci/pci-driver.c:478 [inline]
pci_device_probe+0x48e/0xd10 drivers/pci/pci-driver.c:512
call_driver_probe drivers/base/dd.c:-1 [inline]
really_probe+0x254/0xae0 drivers/base/dd.c:706
__driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868
device_driver_attach+0xe0/0x1d0 drivers/base/dd.c:1203
bind_store+0x1d0/0x220 drivers/base/bus.c:267
kernfs_fop_write_iter+0x3a4/0x540 fs/kernfs/file.c:345
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f931e39e159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f931f331028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f931e625fa0 RCX: 00007f931e39e159
RDX: 000000000000000c RSI: 0000200000000240 RDI: 0000000000000006
RBP: 00007f931f331090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f931e626038 R14: 00007f931e625fa0 R15: 00007fff4d3aed68
</TASK>
----------------
Code disassembly (best guess):
0: 89 ff mov %edi,%edi
2: e8 e1 b3 f6 fa call 0xfaf6b3e8
7: 4d 8b 2f mov (%r15),%r13
a: eb 15 jmp 0x21
c: e8 37 0c 85 fa call 0xfa850c48
11: 41 bf 04 00 00 00 mov $0x4,%r15d
17: 41 b6 03 mov $0x3,%r14b
1a: eb 7d jmp 0x99
1c: e8 27 0c 85 fa call 0xfa850c48
21: 48 89 df mov %rbx,%rdi
24: 4c 89 f6 mov %r14,%rsi
27: 4c 89 ea mov %r13,%rdx
* 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction
2f: 48 8b 04 24 mov (%rsp),%rax
33: 48 05 88 c4 00 00 add $0xc488,%rax
39: 49 89 c6 mov %rax,%r14
3c: 48 c1 e8 03 shr $0x3,%rax
---
If you want syzbot to run the reproducer, reply with:
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2026-09-22 23:25 UTC | newest]
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2026-09-22 23:25 ` syzbot
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