Oops: stack segment: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5341 Comm: syz.0.0 Not tainted 6.15.0-syzkaller-11796-g5abc7438f1e9 #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:gfs2_glock_dq+0x60/0xb20 fs/gfs2/glock.c:1656 Code: 4c 89 ff e8 e2 00 33 fe 4c 89 64 24 28 4c 89 7c 24 30 4d 8b 2f 4d 8d 7d 10 4c 89 fd 48 c1 ed 03 48 b8 00 00 00 00 00 fc ff df <80> 7c 05 00 00 74 08 4c 89 ff e8 b1 00 33 fe 49 8b 45 10 48 89 44 RSP: 0018:ffffc9000d58fc20 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: dffffc0000000000 RCX: 0000000000100000 RDX: ffffc9000f2fc000 RSI: 000000000000002f RDI: 0000000000000030 RBP: 0000000000000002 R08: ffff8880527574f3 R09: 1ffff1100a4eae9e R10: dffffc0000000000 R11: ffffed100a4eae9f R12: 1ffff92001ab1fa2 R13: 0000000000000000 R14: ffffc9000d58fd00 R15: 0000000000000010 FS: 00007f04eb70e6c0(0000) GS:ffff88808d25c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00002000006d8000 CR3: 000000004285d000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: gfs2_glock_dq_uninit+0x25/0xb0 fs/gfs2/glock.c:1722 gfs2_seek_hole+0x16c/0x240 fs/gfs2/inode.c:2233 gfs2_llseek+0xfa/0x240 fs/gfs2/file.c:79 vfs_llseek fs/read_write.c:389 [inline] ksys_lseek fs/read_write.c:402 [inline] __do_sys_lseek fs/read_write.c:412 [inline] __se_sys_lseek fs/read_write.c:410 [inline] __x64_sys_lseek+0x14f/0x1e0 fs/read_write.c:410 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f04ea98e969 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f04eb70e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000008 RAX: ffffffffffffffda RBX: 00007f04eabb6160 RCX: 00007f04ea98e969 RDX: 0000000000000004 RSI: 0000000000000081 RDI: 000000000000000d RBP: 00007f04eaa10ab1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f04eabb6160 R15: 00007ffd537fc6c8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:gfs2_glock_dq+0x60/0xb20 fs/gfs2/glock.c:1656 Code: 4c 89 ff e8 e2 00 33 fe 4c 89 64 24 28 4c 89 7c 24 30 4d 8b 2f 4d 8d 7d 10 4c 89 fd 48 c1 ed 03 48 b8 00 00 00 00 00 fc ff df <80> 7c 05 00 00 74 08 4c 89 ff e8 b1 00 33 fe 49 8b 45 10 48 89 44 RSP: 0018:ffffc9000d58fc20 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: dffffc0000000000 RCX: 0000000000100000 RDX: ffffc9000f2fc000 RSI: 000000000000002f RDI: 0000000000000030 RBP: 0000000000000002 R08: ffff8880527574f3 R09: 1ffff1100a4eae9e R10: dffffc0000000000 R11: ffffed100a4eae9f R12: 1ffff92001ab1fa2 R13: 0000000000000000 R14: ffffc9000d58fd00 R15: 0000000000000010 FS: 00007f04eb70e6c0(0000) GS:ffff88808d25c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00002000006d8000 CR3: 000000004285d000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 4c 89 ff mov %r15,%rdi 3: e8 e2 00 33 fe call 0xfe3300ea 8: 4c 89 64 24 28 mov %r12,0x28(%rsp) d: 4c 89 7c 24 30 mov %r15,0x30(%rsp) 12: 4d 8b 2f mov (%r15),%r13 15: 4d 8d 7d 10 lea 0x10(%r13),%r15 19: 4c 89 fd mov %r15,%rbp 1c: 48 c1 ed 03 shr $0x3,%rbp 20: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 27: fc ff df * 2a: 80 7c 05 00 00 cmpb $0x0,0x0(%rbp,%rax,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 4c 89 ff mov %r15,%rdi 34: e8 b1 00 33 fe call 0xfe3300ea 39: 49 8b 45 10 mov 0x10(%r13),%rax 3d: 48 rex.W 3e: 89 .byte 0x89 3f: 44 rex.R