netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. list_add corruption. prev->next should be next (ffffe8ffad36e460), but was ffffe8ffad36e464. (prev=ffffe8ffad36e460). ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:32! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 3 PID: 5671 Comm: syz-executor.3 Not tainted 6.9.0-syzkaller-12124-g6d69b6c12fce #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:__list_add_valid_or_report+0xbe/0x100 lib/list_debug.c:32 Code: e9 fc 90 0f 0b 48 89 d9 48 c7 c7 a0 b1 8f 8b e8 28 9f e9 fc 90 0f 0b 48 89 f1 48 c7 c7 20 b2 8f 8b 48 89 de e8 13 9f e9 fc 90 <0f> 0b 48 89 f2 48 89 d9 48 89 ee 48 c7 c7 a0 b2 8f 8b e8 fb 9e e9 RSP: 0018:ffffc900032df360 EFLAGS: 00010282 RAX: 0000000000000075 RBX: ffffe8ffad36e460 RCX: ffffc90003a71000 RDX: 0000000000000000 RSI: ffffffff816fbcf6 RDI: 0000000000000005 RBP: ffff888029426aa8 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000007 R12: ffffe8ffad36e460 R13: ffff888029426a40 R14: ffff888029426aa8 R15: ffffe8ffad36e448 FS: 0000000000000000(0000) GS:ffff88802c300000(0063) knlGS:00000000f5ed4b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 0000000056f35f6c CR3: 000000005961c000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> __list_add_valid include/linux/list.h:88 [inline] __list_add include/linux/list.h:150 [inline] list_add_tail include/linux/list.h:183 [inline] xlog_cil_insert_items fs/xfs/xfs_log_cil.c:675 [inline] xlog_cil_commit+0x125b/0x32d0 fs/xfs/xfs_log_cil.c:1593 __xfs_trans_commit+0x346/0xe90 fs/xfs/xfs_trans.c:1020 xfs_attr_add_fork+0x2b3/0x330 fs/xfs/libxfs/xfs_attr.c:978 xfs_attr_set+0xb6d/0xe10 fs/xfs/libxfs/xfs_attr.c:1029 xfs_attr_change+0x373/0x500 fs/xfs/xfs_xattr.c:113 xfs_xattr_set+0x16e/0x240 fs/xfs/xfs_xattr.c:170 __vfs_setxattr+0x173/0x1e0 fs/xattr.c:200 __vfs_setxattr_noperm+0x127/0x660 fs/xattr.c:234 __vfs_setxattr_locked+0x182/0x260 fs/xattr.c:295 vfs_setxattr+0x146/0x350 fs/xattr.c:321 do_setxattr+0x146/0x170 fs/xattr.c:629 setxattr+0x15d/0x180 fs/xattr.c:652 path_setxattr+0x179/0x1e0 fs/xattr.c:671 __do_sys_setxattr fs/xattr.c:687 [inline] __se_sys_setxattr fs/xattr.c:683 [inline] __ia32_sys_setxattr+0xc0/0x160 fs/xattr.c:683 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0x73/0x120 arch/x86/entry/common.c:386 do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf7303579 Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f5ed45ac EFLAGS: 00000292 ORIG_RAX: 00000000000000e2 RAX: ffffffffffffffda RBX: 0000000020000080 RCX: 0000000020000000 RDX: 0000000020000180 RSI: 0000000000000835 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_add_valid_or_report+0xbe/0x100 lib/list_debug.c:32 Code: e9 fc 90 0f 0b 48 89 d9 48 c7 c7 a0 b1 8f 8b e8 28 9f e9 fc 90 0f 0b 48 89 f1 48 c7 c7 20 b2 8f 8b 48 89 de e8 13 9f e9 fc 90 <0f> 0b 48 89 f2 48 89 d9 48 89 ee 48 c7 c7 a0 b2 8f 8b e8 fb 9e e9 RSP: 0018:ffffc900032df360 EFLAGS: 00010282 RAX: 0000000000000075 RBX: ffffe8ffad36e460 RCX: ffffc90003a71000 RDX: 0000000000000000 RSI: ffffffff816fbcf6 RDI: 0000000000000005 RBP: ffff888029426aa8 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000007 R12: ffffe8ffad36e460 R13: ffff888029426a40 R14: ffff888029426aa8 R15: ffffe8ffad36e448 FS: 0000000000000000(0000) GS:ffff88802c300000(0063) knlGS:00000000f5ed4b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 0000000056f35f6c CR3: 000000005961c000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 10 06 adc %al,(%rsi) 2: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 6: 10 07 adc %al,(%rdi) 8: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi c: 10 08 adc %cl,(%rax) e: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1e: 00 51 52 add %dl,0x52(%rcx) 21: 55 push %rbp 22: 89 e5 mov %esp,%ebp 24: 0f 34 sysenter 26: cd 80 int $0x80 * 28: 5d pop %rbp <-- trapping instruction 29: 5a pop %rdx 2a: 59 pop %rcx 2b: c3 ret 2c: 90 nop 2d: 90 nop 2e: 90 nop 2f: 90 nop 30: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 37: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi