Code: 66 2e 0f 1f 84 00 00 00 00 00 48 85 f6 74 35 49 89 f0 89 f8 62 a1 fd 00 ef c0 25 ff 0f 00 00 3d e0 0f 00 00 0f 87 60 02 00 00 <62> f3 7d 20 3f 07 00 c5 fb 93 c0 48 83 fe 20 76 0f 85 c0 74 6b f3 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5310 at include/linux/backing-dev.h:254 inode_to_wb include/linux/backing-dev.h:251 [inline] WARNING: CPU: 0 PID: 5310 at include/linux/backing-dev.h:254 folio_account_dirtied mm/page-writeback.c:2743 [inline] WARNING: CPU: 0 PID: 5310 at include/linux/backing-dev.h:254 __folio_mark_dirty+0x907/0xed0 mm/page-writeback.c:2797 Modules linked in: CPU: 0 UID: 0 PID: 5310 Comm: syz-executor164 Not tainted 6.12.0-rc7-syzkaller-00125-gcfaaa7d010d1 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:inode_to_wb include/linux/backing-dev.h:251 [inline] RIP: 0010:folio_account_dirtied mm/page-writeback.c:2743 [inline] RIP: 0010:__folio_mark_dirty+0x907/0xed0 mm/page-writeback.c:2797 Code: f9 ff ff e8 8b bf c4 ff 4c 89 f7 48 8b 34 24 e8 2f 0e 38 00 eb 87 e8 78 bf c4 ff 90 0f 0b 90 e9 45 ff ff ff e8 6a bf c4 ff 90 <0f> 0b 90 e9 40 fb ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 07 f9 RSP: 0018:ffffc9000d05f5f0 EFLAGS: 00010093 RAX: ffffffff81d02aa6 RBX: 0000000000000000 RCX: ffff88800095c880 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff888031ce4cf8 R08: ffffffff81d025e2 R09: 1ffff1100639c99f R10: dffffc0000000000 R11: ffffed100639c9a0 R12: 0000000000000001 R13: ffff888031ce4b88 R14: ffffea00010142c0 R15: 1ffff1100639c99f FS: 0000000000000000(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000000e734000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: mark_buffer_dirty+0x2a4/0x520 fs/buffer.c:1201 gfs2_unpin+0x129/0xa60 fs/gfs2/lops.c:111 buf_lo_after_commit+0x14f/0x1a0 fs/gfs2/lops.c:738 lops_after_commit fs/gfs2/lops.h:51 [inline] gfs2_log_flush+0x118d/0x2610 fs/gfs2/log.c:1115 gfs2_kill_sb+0x5b/0x350 fs/gfs2/ops_fstype.c:1775 deactivate_locked_super+0xc4/0x130 fs/super.c:473 cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1373 task_work_run+0x24f/0x310 kernel/task_work.c:239 exit_task_work include/linux/task_work.h:43 [inline] do_exit+0xa2f/0x28e0 kernel/exit.c:939 do_group_exit+0x207/0x2c0 kernel/exit.c:1088 get_signal+0x16a3/0x1740 kernel/signal.c:2918 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] irqentry_exit_to_user_mode+0x79/0x280 kernel/entry/common.c:231 exc_page_fault+0x590/0x8c0 arch/x86/mm/fault.c:1542 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0033:0x7fe20b1faa80 Code: Unable to access opcode bytes at 0x7fe20b1faa56. RSP: 002b:00007ffe2b0494f8 EFLAGS: 00010283 RAX: 0000000000000000 RBX: 0030656c69662f2e RCX: 0000000000000000 RDX: 00007ffe2b049520 RSI: 000000000000000f RDI: 0000000000000000 RBP: 0000000000000005 R08: 000000000000000f R09: 0000000000000006 R10: 0000000000000006 R11: 0000000000000286 R12: 00007fe20b28443c R13: 00007fe20b2470c9 R14: 0000000000000001 R15: 0000000000000001 ---------------- Code disassembly (best guess): 0: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 7: 00 00 00 a: 48 85 f6 test %rsi,%rsi d: 74 35 je 0x44 f: 49 89 f0 mov %rsi,%r8 12: 89 f8 mov %edi,%eax 14: 62 a1 fd 00 ef c0 vpxorq %xmm16,%xmm16,%xmm16 1a: 25 ff 0f 00 00 and $0xfff,%eax 1f: 3d e0 0f 00 00 cmp $0xfe0,%eax 24: 0f 87 60 02 00 00 ja 0x28a * 2a: 62 f3 7d 20 3f 07 00 vpcmpeqb (%rdi),%ymm16,%k0 <-- trapping instruction 31: c5 fb 93 c0 kmovd %k0,%eax 35: 48 83 fe 20 cmp $0x20,%rsi 39: 76 0f jbe 0x4a 3b: 85 c0 test %eax,%eax 3d: 74 6b je 0xaa 3f: f3 repz