Hello, syzbot found the following issue on: HEAD commit: 5d6a0f4da927 Merge tag 'for-linus-6.0-rc1b-tag' of git://g.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1399b2f3080000 kernel config: https://syzkaller.appspot.com/x/.config?x=f6bcb425ba129b87 dashboard link: https://syzkaller.appspot.com/bug?extid=24df94a8d05d5a3e68f0 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+24df94a8d05d5a3e68f0@xxxxxxxxxxxxxxxxxxxxxxxxx list_add corruption. next->prev should be prev (ffff8881401c0a00), but was ffff000000000000. (next=ffff88801fb50308). ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:27! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 24 Comm: kdevtmpfs Not tainted 5.19.0-syzkaller-14374-g5d6a0f4da927 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 RIP: 0010:__list_add_valid.cold+0xf/0x58 lib/list_debug.c:27 Code: 48 c7 c6 00 ec 48 8a 48 89 ef 49 c7 c7 ea ff ff ff e8 5b 63 05 00 e9 c2 7d b6 fa 4c 89 e1 48 c7 c7 a0 f2 48 8a e8 95 f2 f0 ff <0f> 0b 48 c7 c7 40 f2 48 8a e8 87 f2 f0 ff 0f 0b 48 c7 c7 a0 f1 48 RSP: 0018:ffffc900001efc10 EFLAGS: 00010286 RAX: 0000000000000075 RBX: ffff8881401c0000 RCX: 0000000000000000 RDX: ffff888012620000 RSI: ffffffff8161f148 RDI: fffff5200003df74 RBP: ffff88801db8b588 R08: 0000000000000075 R09: 0000000000000000 R10: 0000000080000001 R11: 0000000000000000 R12: ffff88801fb50308 R13: ffff88801fb50308 R14: ffff8881401c0000 R15: ffff88801db8b588 FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff88823ffff000 CR3: 000000000bc8e000 CR4: 0000000000350ef0 Call Trace: <TASK> __list_add include/linux/list.h:69 [inline] list_add include/linux/list.h:88 [inline] inode_sb_list_add fs/inode.c:495 [inline] new_inode+0x114/0x270 fs/inode.c:1049 shmem_get_inode+0x19b/0xe00 mm/shmem.c:2306 shmem_mknod+0x5a/0x1f0 mm/shmem.c:2873 vfs_mknod+0x4d2/0x7e0 fs/namei.c:3892 handle_create+0x340/0x4b3 drivers/base/devtmpfs.c:226 handle drivers/base/devtmpfs.c:391 [inline] devtmpfs_work_loop drivers/base/devtmpfs.c:406 [inline] devtmpfsd+0x1a4/0x2a3 drivers/base/devtmpfs.c:448 kthread+0x2e4/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_add_valid.cold+0xf/0x58 lib/list_debug.c:27 Code: 48 c7 c6 00 ec 48 8a 48 89 ef 49 c7 c7 ea ff ff ff e8 5b 63 05 00 e9 c2 7d b6 fa 4c 89 e1 48 c7 c7 a0 f2 48 8a e8 95 f2 f0 ff <0f> 0b 48 c7 c7 40 f2 48 8a e8 87 f2 f0 ff 0f 0b 48 c7 c7 a0 f1 48 RSP: 0018:ffffc900001efc10 EFLAGS: 00010286 RAX: 0000000000000075 RBX: ffff8881401c0000 RCX: 0000000000000000 RDX: ffff888012620000 RSI: ffffffff8161f148 RDI: fffff5200003df74 RBP: ffff88801db8b588 R08: 0000000000000075 R09: 0000000000000000 R10: 0000000080000001 R11: 0000000000000000 R12: ffff88801fb50308 R13: ffff88801fb50308 R14: ffff8881401c0000 R15: ffff88801db8b588 FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff88823ffff000 CR3: 000000000bc8e000 CR4: 0000000000350ef0 --- 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@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
