jfs_mount_rw+0xbb/0x670 fs/jfs/jfs_mount.c:232
jfs_reconfigure+0x5f9/0xa00 fs/jfs/super.c:409
reconfigure_super+0x224/0x890 fs/super.c:1077
vfs_cmd_reconfigure fs/fsopen.c:262 [inline]
vfs_fsconfig_locked+0x171/0x320 fs/fsopen.c:291
__do_sys_fsconfig fs/fsopen.c:467 [inline]
__se_sys_fsconfig+0x78e/0x8d0 fs/fsopen.c:344
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: 0033:0x7fca46f8e929
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:00007fca47ddc038 EFLAGS: 00000246 ORIG_RAX: 00000000000001af
RAX: ffffffffffffffda RBX: 00007fca471b5fa0 RCX: 00007fca46f8e929
RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000006
RBP: 00007fca47010b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fca471b5fa0 R15: 00007ffffdeb8138
getblk(): invalid block size 4096 requested
logical block size: 32768
CPU: 0 UID: 0 PID: 5342 Comm: syz.0.0 Not tainted 6.16.0-rc5-syzkaller-00121-gbc9ff192a6c9 #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
Call Trace:
dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
__getblk_slow fs/buffer.c:1133 [inline]
bdev_getblk+0x5b0/0x690 fs/buffer.c:1467
__bread_gfp+0x89/0x3c0 fs/buffer.c:1521
sb_bread include/linux/buffer_head.h:348 [inline]
readSuper+0x1ac/0x270 fs/jfs/jfs_mount.c:466
chkSuper+0x5d/0xe00 fs/jfs/jfs_mount.c:299
jfs_mount_rw+0xbb/0x670 fs/jfs/jfs_mount.c:232
jfs_reconfigure+0x5f9/0xa00 fs/jfs/super.c:409
reconfigure_super+0x224/0x890 fs/super.c:1077
vfs_cmd_reconfigure fs/fsopen.c:262 [inline]
vfs_fsconfig_locked+0x171/0x320 fs/fsopen.c:291
__do_sys_fsconfig fs/fsopen.c:467 [inline]
__se_sys_fsconfig+0x78e/0x8d0 fs/fsopen.c:344
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: 0033:0x7fca46f8e929
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:00007fca47ddc038 EFLAGS: 00000246 ORIG_RAX: 00000000000001af
RAX: ffffffffffffffda RBX: 00007fca471b5fa0 RCX: 00007fca46f8e929
RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000006
RBP: 00007fca47010b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fca471b5fa0 R15: 00007ffffdeb8138
netlink: 168 bytes leftover after parsing attributes in process `syz.0.0'.
ERROR: (device loop0): txBegin: read-only filesystem
ERROR: (device loop0): remounting filesystem as read-only
Read error 10 at 0x4000
read_mapping_page failed!
jfs_create: dtInsert returned -EIO
ERROR: (device (efault)): jfs_create:
Oops: general protection fault, probably for non-canonical address 0xdffffc000000000a: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000050-0x0000000000000057]
CPU: 0 UID: 0 PID: 5342 Comm: syz.0.0 Not tainted 6.16.0-rc5-syzkaller-00121-gbc9ff192a6c9 #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:sb_rdonly include/linux/fs.h:2415 [inline]
RIP: 0010:jfs_handle_error fs/jfs/super.c:66 [inline]
RIP: 0010:jfs_error+0x130/0x2c0 fs/jfs/super.c:98
Code: 8d 4c 24 60 48 c7 c7 a0 82 c3 8b 48 89 74 24 08 e8 e5 8d fe ff 4d 8d 6f 50 4d 89 ee 49 c1 ee 03 48 b8 00 00 00 00 00 fc ff df <41> 80 3c 06 00 74 08 4c 89 ef e8 c1 a9 fa 00 4d 8b 65 00 4c 89 e6
RSP: 0018:ffffc9000d4e7a00 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 1ffff92001a9cf48 RCX: 487b46b81f494700
RDX: ffffc9000e262000 RSI: 00000000000036eb RDI: 00000000000036ec
RBP: ffffc9000d4e7b10 R08: ffff88801fc24293 R09: 1ffff11003f84852
R10: dffffc0000000000 R11: ffffed1003f84853 R12: ffffc9000d4e7a80
R13: 0000000000000050 R14: 000000000000000a R15: 0000000000000000
FS: 00007fca47ddc6c0(0000) GS:ffff88808d21b000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000010c0 CR3: 0000000043136000 CR4: 0000000000352ef0
Call Trace:
jfs_create+0x732/0xa80 fs/jfs/namei.c:140
vfs_create+0x24b/0x400 fs/namei.c:3414
do_mknodat+0x3c6/0x4d0 fs/namei.c:4294
__do_sys_mknod fs/namei.c:4327 [inline]
__se_sys_mknod fs/namei.c:4325 [inline]
__x64_sys_mknod+0x8c/0xa0 fs/namei.c:4325
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: 0033:0x7fca46f8e929
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:00007fca47ddc038 EFLAGS: 00000246 ORIG_RAX: 0000000000000085
RAX: ffffffffffffffda RBX: 00007fca471b5fa0 RCX: 00007fca46f8e929
RDX: 0000000000000701 RSI: 0000000000000000 RDI: 00002000000001c0
RBP: 00007fca47010b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fca471b5fa0 R15: 00007ffffdeb8138
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:sb_rdonly include/linux/fs.h:2415 [inline]
RIP: 0010:jfs_handle_error fs/jfs/super.c:66 [inline]
RIP: 0010:jfs_error+0x130/0x2c0 fs/jfs/super.c:98
Code: 8d 4c 24 60 48 c7 c7 a0 82 c3 8b 48 89 74 24 08 e8 e5 8d fe ff 4d 8d 6f 50 4d 89 ee 49 c1 ee 03 48 b8 00 00 00 00 00 fc ff df <41> 80 3c 06 00 74 08 4c 89 ef e8 c1 a9 fa 00 4d 8b 65 00 4c 89 e6
RSP: 0018:ffffc9000d4e7a00 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 1ffff92001a9cf48 RCX: 487b46b81f494700
RDX: ffffc9000e262000 RSI: 00000000000036eb RDI: 00000000000036ec
RBP: ffffc9000d4e7b10 R08: ffff88801fc24293 R09: 1ffff11003f84852
R10: dffffc0000000000 R11: ffffed1003f84853 R12: ffffc9000d4e7a80
R13: 0000000000000050 R14: 000000000000000a R15: 0000000000000000
FS: 00007fca47ddc6c0(0000) GS:ffff88808d21b000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4f3c1a1796 CR3: 0000000043136000 CR4: 0000000000352ef0
----------------
Code disassembly (best guess):
0: 8d 4c 24 60 lea 0x60(%rsp),%ecx
4: 48 c7 c7 a0 82 c3 8b mov $0xffffffff8bc382a0,%rdi
b: 48 89 74 24 08 mov %rsi,0x8(%rsp)
10: e8 e5 8d fe ff call 0xfffe8dfa
15: 4d 8d 6f 50 lea 0x50(%r15),%r13
19: 4d 89 ee mov %r13,%r14
1c: 49 c1 ee 03 shr $0x3,%r14
20: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
27: fc ff df
* 2a: 41 80 3c 06 00 cmpb $0x0,(%r14,%rax,1) <-- trapping instruction
2f: 74 08 je 0x39
31: 4c 89 ef mov %r13,%rdi
34: e8 c1 a9 fa 00 call 0xfaa9fa
39: 4d 8b 65 00 mov 0x0(%r13),%r12
3d: 4c 89 e6 mov %r12,%rsi