======================================================= ERROR: (device loop0): txBegin: read-only filesystem ERROR: (device loop0): remounting filesystem as read-only general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 0 PID: 5036 Comm: syz-executor242 Not tainted 6.5.0-rc4-next-20230801-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023 RIP: 0010:__wake_up_common+0xd7/0x5a0 kernel/sched/wait.c:100 Code: b7 04 00 00 4c 8b 43 40 49 83 e8 18 49 8d 78 18 48 39 ef 0f 84 ab 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 a5 04 00 00 49 bd 00 00 00 00 00 fc ff df 49 8b RSP: 0018:ffffc900039ff770 EFLAGS: 00010046 RAX: dffffc0000000000 RBX: ffffc900025c1030 RCX: 1ffffffff1d59d8e RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000 RBP: ffffc900025c1070 R08: ffffffffffffffe8 R09: ffffc900039ff810 R10: 0000000000000003 R11: 0000000000000001 R12: ffffc900039ff810 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003 FS: 0000555557293380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000066c7e0 CR3: 000000007daa3000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __wake_up_common_lock+0xd6/0x140 kernel/sched/wait.c:138 txEnd+0x98/0x5a0 fs/jfs/jfs_txnmgr.c:504 __jfs_xattr_set+0xe3/0x150 fs/jfs/xattr.c:920 __vfs_setxattr+0x173/0x1d0 fs/xattr.c:201 __vfs_setxattr_noperm+0x127/0x5e0 fs/xattr.c:235 __vfs_setxattr_locked+0x17e/0x250 fs/xattr.c:296 vfs_setxattr+0x146/0x350 fs/xattr.c:322 do_setxattr+0x142/0x170 fs/xattr.c:630 setxattr+0x159/0x170 fs/xattr.c:653 path_setxattr+0x1a3/0x1d0 fs/xattr.c:672 __do_sys_setxattr fs/xattr.c:688 [inline] __se_sys_setxattr fs/xattr.c:684 [inline] __x64_sys_setxattr+0xc4/0x160 fs/xattr.c:684 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f239a8d99c9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 17 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffd09617378 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007f239a8d99c9 RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000020000180 RBP: 00007f239a92204b R08: 0000000000000002 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffd09617558 R14: 0000000000000001 R15: 0000000000000001 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__wake_up_common+0xd7/0x5a0 kernel/sched/wait.c:100 Code: b7 04 00 00 4c 8b 43 40 49 83 e8 18 49 8d 78 18 48 39 ef 0f 84 ab 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 a5 04 00 00 49 bd 00 00 00 00 00 fc ff df 49 8b RSP: 0018:ffffc900039ff770 EFLAGS: 00010046 RAX: dffffc0000000000 RBX: ffffc900025c1030 RCX: 1ffffffff1d59d8e RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000 RBP: ffffc900025c1070 R08: ffffffffffffffe8 R09: ffffc900039ff810 R10: 0000000000000003 R11: 0000000000000001 R12: ffffc900039ff810 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000003 FS: 0000555557293380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000066c7e0 CR3: 000000007daa3000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: b7 04 mov $0x4,%bh 2: 00 00 add %al,(%rax) 4: 4c 8b 43 40 mov 0x40(%rbx),%r8 8: 49 83 e8 18 sub $0x18,%r8 c: 49 8d 78 18 lea 0x18(%r8),%rdi 10: 48 39 ef cmp %rbp,%rdi 13: 0f 84 ab 00 00 00 je 0xc4 19: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 20: fc ff df 23: 48 89 fa mov %rdi,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction 2e: 0f 85 a5 04 00 00 jne 0x4d9 34: 49 bd 00 00 00 00 00 movabs $0xdffffc0000000000,%r13 3b: fc ff df 3e: 49 rex.WB 3f: 8b .byte 0x8b