function = gfs2_jdesc_check, file = fs/gfs2/super.c, line = 119
gfs2: fsid=syz:syz.s: G:  s:SH n:2/13 f:qob t:SH d:EX/0 a:0 v:0 r:3 m:20 p:1
gfs2: fsid=syz:syz.s:  H: s:SH f:eEcH e:0 p:6956 [syz.2.297] init_journal+0x186e/0x22f0 fs/gfs2/ops_fstype.c:828
gfs2: fsid=syz:syz.s:  I: n:1/19 t:8 f:0x00 d:0x00000200 s:8388608 p:0
gfs2: fsid=syz:syz.s: about to withdraw this file system
------------[ cut here ]------------
kernel BUG at fs/gfs2/util.c:331!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 6956 Comm: syz.2.297 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:gfs2_withdraw+0x134e/0x1400 fs/gfs2/util.c:331
Code: f8 ff ff 48 8b 4c 24 20 80 e1 07 80 c1 03 38 c1 0f 8c e4 f8 ff ff 48 8b 7c 24 20 e8 cc 5f 2e fe e9 d5 f8 ff ff e8 72 eb d5 fd <0f> 0b 48 8b 4c 24 20 80 e1 07 80 c1 03 38 c1 0f 8c 89 fb ff ff 48
RSP: 0018:ffffc90003157560 EFLAGS: 00010283
RAX: ffffffff83b0f9de RBX: 1ffff9200062aec0 RCX: 0000000000080000
RDX: ffffc9000d6cd000 RSI: 0000000000069753 RDI: 0000000000069754
RBP: ffffc900031576f0 R08: ffffc90003157167 R09: 1ffff9200062ae2c
R10: dffffc0000000000 R11: fffff5200062ae2d R12: 1ffff1100adda815
R13: dffffc0000000000 R14: 0000000000000004 R15: ffffc90003157670
FS:  00007feb05dbf6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdef9f1d000 CR3: 00000000273ca000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 gfs2_jdesc_check+0x13b/0x290 fs/gfs2/super.c:-1
 check_journal_clean+0x18e/0x360 fs/gfs2/util.c:69
 init_journal+0x186e/0x22f0 fs/gfs2/ops_fstype.c:828
 init_inodes+0xdb/0x320 fs/gfs2/ops_fstype.c:886
 gfs2_fill_super+0x1828/0x1f90 fs/gfs2/ops_fstype.c:1266
 get_tree_bdev+0x3e5/0x520 fs/super.c:1591
 gfs2_get_tree+0x51/0x1e0 fs/gfs2/ops_fstype.c:1344
 vfs_get_tree+0x8c/0x280 fs/super.c:1764
 do_new_mount+0x24a/0xa40 fs/namespace.c:3386
 do_mount fs/namespace.c:3726 [inline]
 __do_sys_mount fs/namespace.c:3935 [inline]
 __se_sys_mount+0x2e7/0x3d0 fs/namespace.c:3912
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7feb04f9e0ca
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007feb05dbee58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007feb05dbeee0 RCX: 00007feb04f9e0ca
RDX: 0000200000000400 RSI: 0000200000012500 RDI: 00007feb05dbeea0
RBP: 0000200000000400 R08: 00007feb05dbeee0 R09: 0000000000200000
R10: 0000000000200000 R11: 0000000000000246 R12: 0000200000012500
R13: 00007feb05dbeea0 R14: 00000000000125bb R15: 0000200000000f40
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:gfs2_withdraw+0x134e/0x1400 fs/gfs2/util.c:331
Code: f8 ff ff 48 8b 4c 24 20 80 e1 07 80 c1 03 38 c1 0f 8c e4 f8 ff ff 48 8b 7c 24 20 e8 cc 5f 2e fe e9 d5 f8 ff ff e8 72 eb d5 fd <0f> 0b 48 8b 4c 24 20 80 e1 07 80 c1 03 38 c1 0f 8c 89 fb ff ff 48
RSP: 0018:ffffc90003157560 EFLAGS: 00010283
RAX: ffffffff83b0f9de RBX: 1ffff9200062aec0 RCX: 0000000000080000
RDX: ffffc9000d6cd000 RSI: 0000000000069753 RDI: 0000000000069754
RBP: ffffc900031576f0 R08: ffffc90003157167 R09: 1ffff9200062ae2c
R10: dffffc0000000000 R11: fffff5200062ae2d R12: 1ffff1100adda815
R13: dffffc0000000000 R14: 0000000000000004 R15: ffffc90003157670
FS:  00007feb05dbf6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc79e3ea2f8 CR3: 00000000273ca000 CR4: 00000000003506f0