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<6aecab86.ab333cca.1deac.0001.GAE@google.com> Subject: Re: [syzbot] [btrfs?] [ext4?] [ntfs3?] memory leak in __pcs_replace_full_main From: syzbot To: gowtham398gs@gmail.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: memory leak in __netlink_create BUG: memory leak unreferenced object 0xffff8881126c5800 (size 2048): comm "udevd", pid 4994, jiffies 4294948333 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 10 00 07 40 00 00 00 00 00 00 00 00 00 00 00 00 ...@............ backtrace (crc a071d5b): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4735 [inline] slab_alloc_node mm/slub.c:5035 [inline] __do_kmalloc_node mm/slub.c:5532 [inline] __kmalloc_noprof+0x3ce/0x510 mm/slub.c:5558 _kmalloc_noprof include/linux/slab.h:995 [inline] sk_prot_alloc+0xf9/0x1b0 net/core/sock.c:2281 sk_alloc+0x36/0x3e0 net/core/sock.c:2337 __netlink_create+0x3b/0xb0 net/netlink/af_netlink.c:624 netlink_create+0x1c5/0x2f0 net/netlink/af_netlink.c:682 __sock_create+0x1a9/0x2d0 net/socket.c:1679 sock_create net/socket.c:1737 [inline] __sys_socket_create net/socket.c:1774 [inline] __sys_socket+0xb7/0x1a0 net/socket.c:1821 __do_sys_socket net/socket.c:1835 [inline] __se_sys_socket net/socket.c:1833 [inline] __x64_sys_socket+0x1b/0x30 net/socket.c:1833 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0xe9/0x530 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f BUG: memory leak unreferenced object 0xffff888126e74380 (size 32): comm "udevd", pid 4994, jiffies 4294948333 hex dump (first 32 bytes): f8 ae 0a 00 81 88 ff ff 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc f6dd81f5): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4735 [inline] slab_alloc_node mm/slub.c:5035 [inline] __do_kmalloc_node mm/slub.c:5532 [inline] __kmalloc_noprof+0x3ce/0x510 mm/slub.c:5558 _kmalloc_noprof include/linux/slab.h:995 [inline] _kzalloc_noprof include/linux/slab.h:1312 [inline] lsm_blob_alloc+0x4d/0x80 security/security.c:219 lsm_sock_alloc security/security.c:4556 [inline] security_sk_alloc+0x2d/0x290 security/security.c:4572 sk_prot_alloc+0x114/0x1b0 net/core/sock.c:2284 sk_alloc+0x36/0x3e0 net/core/sock.c:2337 __netlink_create+0x3b/0xb0 net/netlink/af_netlink.c:624 netlink_create+0x1c5/0x2f0 net/netlink/af_netlink.c:682 __sock_create+0x1a9/0x2d0 net/socket.c:1679 sock_create net/socket.c:1737 [inline] __sys_socket_create net/socket.c:1774 [inline] __sys_socket+0xb7/0x1a0 net/socket.c:1821 __do_sys_socket net/socket.c:1835 [inline] __se_sys_socket net/socket.c:1833 [inline] __x64_sys_socket+0x1b/0x30 net/socket.c:1833 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0xe9/0x530 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f BUG: memory leak unreferenced object 0xffff888127f13800 (size 2048): comm "udevd", pid 4994, jiffies 4294948336 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 10 00 07 40 00 00 00 00 00 00 00 00 00 00 00 00 ...@............ backtrace (crc b5cbc83d): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4735 [inline] slab_alloc_node mm/slub.c:5035 [inline] __do_kmalloc_node mm/slub.c:5532 [inline] __kmalloc_noprof+0x3ce/0x510 mm/slub.c:5558 _kmalloc_noprof include/linux/slab.h:995 [inline] sk_prot_alloc+0xf9/0x1b0 net/core/sock.c:2281 sk_alloc+0x36/0x3e0 net/core/sock.c:2337 __netlink_create+0x3b/0xb0 net/netlink/af_netlink.c:624 netlink_create+0x1c5/0x2f0 net/netlink/af_netlink.c:682 __sock_create+0x1a9/0x2d0 net/socket.c:1679 sock_create net/socket.c:1737 [inline] __sys_socket_create net/socket.c:1774 [inline] __sys_socket+0xb7/0x1a0 net/socket.c:1821 __do_sys_socket net/socket.c:1835 [inline] __se_sys_socket net/socket.c:1833 [inline] __x64_sys_socket+0x1b/0x30 net/socket.c:1833 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0xe9/0x530 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f BUG: memory leak unreferenced object 0xffff888126fbf9e0 (size 32): comm "udevd", pid 4994, jiffies 4294948336 hex dump (first 32 bytes): f8 ae 0a 00 81 88 ff ff 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc f6dd81f5): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4735 [inline] slab_alloc_node mm/slub.c:5035 [inline] __do_kmalloc_node mm/slub.c:5532 [inline] __kmalloc_noprof+0x3ce/0x510 mm/slub.c:5558 _kmalloc_noprof include/linux/slab.h:995 [inline] _kzalloc_noprof include/linux/slab.h:1312 [inline] lsm_blob_alloc+0x4d/0x80 security/security.c:219 lsm_sock_alloc security/security.c:4556 [inline] security_sk_alloc+0x2d/0x290 security/security.c:4572 sk_prot_alloc+0x114/0x1b0 net/core/sock.c:2284 sk_alloc+0x36/0x3e0 net/core/sock.c:2337 __netlink_create+0x3b/0xb0 net/netlink/af_netlink.c:624 netlink_create+0x1c5/0x2f0 net/netlink/af_netlink.c:682 __sock_create+0x1a9/0x2d0 net/socket.c:1679 sock_create net/socket.c:1737 [inline] __sys_socket_create net/socket.c:1774 [inline] __sys_socket+0xb7/0x1a0 net/socket.c:1821 __do_sys_socket net/socket.c:1835 [inline] __se_sys_socket net/socket.c:1833 [inline] __x64_sys_socket+0x1b/0x30 net/socket.c:1833 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0xe9/0x530 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f BUG: memory leak unreferenced object 0xffff888126d86000 (size 2048): comm "udevd", pid 4994, jiffies 4294948337 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 10 00 07 40 00 00 00 00 00 00 00 00 00 00 00 00 ...@............ backtrace (crc 2985600b): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4735 [inline] slab_alloc_node mm/slub.c:5035 [inline] __do_kmalloc_node mm/slub.c:5532 [inline] __kmalloc_noprof+0x3ce/0x510 mm/slub.c:5558 _kmalloc_noprof include/linux/slab.h:995 [inline] sk_prot_alloc+0xf9/0x1b0 net/core/sock.c:2281 sk_alloc+0x36/0x3e0 net/core/sock.c:2337 __netlink_create+0x3b/0xb0 net/netlink/af_netlink.c:624 netlink_create+0x1c5/0x2f0 net/netlink/af_netlink.c:682 __sock_create+0x1a9/0x2d0 net/socket.c:1679 sock_create net/socket.c:1737 [inline] __sys_socket_create net/socket.c:1774 [inline] __sys_socket+0xb7/0x1a0 net/socket.c:1821 __do_sys_socket net/socket.c:1835 [inline] __se_sys_socket net/socket.c:1833 [inline] __x64_sys_socket+0x1b/0x30 net/socket.c:1833 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0xe9/0x530 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f BUG: memory leak unreferenced object 0xffff888129029720 (size 32): comm "udevd", pid 4994, jiffies 4294948337 hex dump (first 32 bytes): f8 ae 0a 00 81 88 ff ff 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc f6dd81f5): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4735 [inline] slab_alloc_node mm/slub.c:5035 [inline] __do_kmalloc_node mm/slub.c:5532 [inline] __kmalloc_noprof+0x3ce/0x510 mm/slub.c:5558 _kmalloc_noprof include/linux/slab.h:995 [inline] _kzalloc_noprof include/linux/slab.h:1312 [inline] lsm_blob_alloc+0x4d/0x80 security/security.c:219 lsm_sock_alloc security/security.c:4556 [inline] security_sk_alloc+0x2d/0x290 security/security.c:4572 sk_prot_alloc+0x114/0x1b0 net/core/sock.c:2284 sk_alloc+0x36/0x3e0 net/core/sock.c:2337 __netlink_create+0x3b/0xb0 net/netlink/af_netlink.c:624 netlink_create+0x1c5/0x2f0 net/netlink/af_netlink.c:682 __sock_create+0x1a9/0x2d0 net/socket.c:1679 sock_create net/socket.c:1737 [inline] __sys_socket_create net/socket.c:1774 [inline] __sys_socket+0xb7/0x1a0 net/socket.c:1821 __do_sys_socket net/socket.c:1835 [inline] __se_sys_socket net/socket.c:1833 [inline] __x64_sys_socket+0x1b/0x30 net/socket.c:1833 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0xe9/0x530 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f connection error: failed to recv *flatrpc.ExecutorMessageRawT: EOF Tested on: commit: 05441d69 Merge tag 'cocci-7.4-rc1' of git://git.kernel.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=12dde455580000 kernel config: https://syzkaller.appspot.com/x/.config?x=4361b1bb937ae1c4 dashboard link: https://syzkaller.appspot.com/bug?extid=4d078516add5f4f12cea compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44 patch: https://syzkaller.appspot.com/x/patch.diff?x=13bf59dd580000