read_mapping_page failed! ERROR: (device loop2): txAbort: Oops: general protection fault, probably for non-canonical address 0xdffffc0000000029: 0000 [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000148-0x000000000000014f] CPU: 1 UID: 0 PID: 7077 Comm: syz-executor.2 Not tainted 6.14.0-syzkaller-07422-gacb4f33713b9 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:txEnd+0x21b/0x5a0 fs/jfs/jfs_txnmgr.c:539 Code: 05 9a c8 7b 17 49 8d bd 4c 01 00 00 0f b7 ed 48 89 fa 89 2d 87 c8 7b 17 66 89 43 28 48 c1 ea 03 48 b8 00 00 00 00 00 fc ff df <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 c2 RSP: 0018:ffffc9000cd6fab0 EFLAGS: 00010213 RAX: dffffc0000000000 RBX: ffffc90002749110 RCX: ffffffff83422531 RDX: 0000000000000029 RSI: ffffffff83422540 RDI: 000000000000014c RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff8e97b400 R13: 0000000000000000 R14: 0000000000000000 R15: ffffc90002749112 FS: 00007efc498976c0(0000) GS:ffff888124b20000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f751747e000 CR3: 0000000034696000 CR4: 0000000000350ef0 Call Trace: add_missing_indices fs/jfs/jfs_dtree.c:2666 [inline] jfs_readdir+0x2be8/0x4620 fs/jfs/jfs_dtree.c:3020 wrap_directory_iterator+0xa2/0xe0 fs/readdir.c:65 iterate_dir+0x296/0xb40 fs/readdir.c:108 __do_sys_getdents fs/readdir.c:322 [inline] __se_sys_getdents fs/readdir.c:308 [inline] __x64_sys_getdents+0x14d/0x2c0 fs/readdir.c:308 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7efc48a7dda9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007efc498970c8 EFLAGS: 00000246 ORIG_RAX: 000000000000004e RAX: ffffffffffffffda RBX: 00007efc48bac050 RCX: 00007efc48a7dda9 RDX: 0000000000001000 RSI: 0000000020006600 RDI: 0000000000000005 RBP: 00007efc48aca47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007efc48bac050 R15: 00007ffd3b377908 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:txEnd+0x21b/0x5a0 fs/jfs/jfs_txnmgr.c:539 Code: 05 9a c8 7b 17 49 8d bd 4c 01 00 00 0f b7 ed 48 89 fa 89 2d 87 c8 7b 17 66 89 43 28 48 c1 ea 03 48 b8 00 00 00 00 00 fc ff df <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 c2 RSP: 0018:ffffc9000cd6fab0 EFLAGS: 00010213 RAX: dffffc0000000000 RBX: ffffc90002749110 RCX: ffffffff83422531 RDX: 0000000000000029 RSI: ffffffff83422540 RDI: 000000000000014c RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff8e97b400 R13: 0000000000000000 R14: 0000000000000000 R15: ffffc90002749112 FS: 00007efc498976c0(0000) GS:ffff888124b20000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f751747e000 CR3: 0000000034696000 CR4: 0000000000350ef0 ---------------- Code disassembly (best guess): 0: 05 9a c8 7b 17 add $0x177bc89a,%eax 5: 49 8d bd 4c 01 00 00 lea 0x14c(%r13),%rdi c: 0f b7 ed movzwl %bp,%ebp f: 48 89 fa mov %rdi,%rdx 12: 89 2d 87 c8 7b 17 mov %ebp,0x177bc887(%rip) # 0x177bc89f 18: 66 89 43 28 mov %ax,0x28(%rbx) 1c: 48 c1 ea 03 shr $0x3,%rdx 20: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 27: fc ff df * 2a: 0f b6 14 02 movzbl (%rdx,%rax,1),%edx <-- trapping instruction 2e: 48 89 f8 mov %rdi,%rax 31: 83 e0 07 and $0x7,%eax 34: 83 c0 03 add $0x3,%eax 37: 38 d0 cmp %dl,%al 39: 7c 08 jl 0x43 3b: 84 d2 test %dl,%dl 3d: 0f .byte 0xf 3e: 85 c2 test %eax,%edx