loop0: rw=12288, sector=154618822868, nr_sectors = 4 limit=32768 gfs2: fsid=syz:syz.0: can't lookup journal index: 0 gfs2: fsid=syz:syz.0: G: s:UN n:2/1244 f:n t:UN d:EX/0 a:0 v:0 r:-128 m:20 p:1 ------------[ cut here ]------------ kernel BUG at fs/gfs2/glock.c:302! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 10054 Comm: syz.0.1931 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:__gfs2_glock_put+0x369/0x3c0 fs/gfs2/glock.c:302 Code: 8b 3f 48 89 de e8 07 0f ff ff eb 25 e8 50 83 de fd e9 cb fe ff ff e8 46 83 de fd 31 ff 48 89 de ba 01 00 00 00 e8 77 de ff ff <0f> 0b e8 30 83 de fd 31 f6 65 ff 0d 3f 24 5b 7c 40 0f 94 c5 40 0f RSP: 0018:ffffc9000f937748 EFLAGS: 00010246 RAX: 009e1fba1ff91400 RBX: ffff88807aea9a68 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: fffff52001f26edc RBP: 1ffff11005ad7815 R08: ffffc9000f936fe7 R09: 0000000000000000 R10: fffff52001f26e98 R11: fffff52001f26dfd R12: 0000000000000000 R13: dffffc0000000000 R14: ffff88802d6bc000 R15: ffff88807aea9d58 FS: 00007f9f38b156c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007faa1174da08 CR3: 000000005b4e4000 CR4: 00000000003506f0 Call Trace: gfs2_glock_put_eventually fs/gfs2/super.c:1273 [inline] gfs2_evict_inode+0x68d/0x1350 fs/gfs2/super.c:1555 evict+0x4ca/0x8d0 fs/inode.c:705 __dentry_kill+0x431/0x650 fs/dcache.c:611 dentry_kill+0xb8/0x290 fs/dcache.c:-1 dput+0xfe/0x1e0 fs/dcache.c:918 gfs2_fill_super+0x16e8/0x1f30 fs/gfs2/ops_fstype.c:1313 get_tree_bdev+0x3f3/0x520 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+0x24b/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+0x55/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f9f37b9c14a 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:00007f9f38b14e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f9f38b14ee0 RCX: 00007f9f37b9c14a RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f9f38b14ea0 RBP: 000020000001f680 R08: 00007f9f38b14ee0 R09: 0000000000000084 R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040 R13: 00007f9f38b14ea0 R14: 000000000001f7b7 R15: 0000200000000080 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__gfs2_glock_put+0x369/0x3c0 fs/gfs2/glock.c:302 Code: 8b 3f 48 89 de e8 07 0f ff ff eb 25 e8 50 83 de fd e9 cb fe ff ff e8 46 83 de fd 31 ff 48 89 de ba 01 00 00 00 e8 77 de ff ff <0f> 0b e8 30 83 de fd 31 f6 65 ff 0d 3f 24 5b 7c 40 0f 94 c5 40 0f RSP: 0018:ffffc9000f937748 EFLAGS: 00010246 RAX: 009e1fba1ff91400 RBX: ffff88807aea9a68 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: fffff52001f26edc RBP: 1ffff11005ad7815 R08: ffffc9000f936fe7 R09: 0000000000000000 R10: fffff52001f26e98 R11: fffff52001f26dfd R12: 0000000000000000 R13: dffffc0000000000 R14: ffff88802d6bc000 R15: ffff88807aea9d58 FS: 00007f9f38b156c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9d4bbe0ad8 CR3: 000000005b4e4000 CR4: 00000000003506e0