gfs2: fsid=syz:syz: Now mounting FS (format 1801)... gfs2: fsid=syz:syz.0: no journals! gfs2: fsid=syz:syz.0: G: s:UN n:2/24a1 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: 1 PID: 15385 Comm: syz.0.4125 Not tainted 6.6.96-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:__gfs2_glock_put+0x355/0x3b0 fs/gfs2/glock.c:302 Code: 8b 3f 48 89 de e8 db 15 ff ff eb 25 e8 94 3f e5 fd e9 d1 fe ff ff e8 8a 3f e5 fd 31 ff 48 89 de ba 01 00 00 00 e8 bb df ff ff <0f> 0b e8 74 3f e5 fd 31 f6 65 ff 0d 13 63 63 7c 40 0f 94 c5 40 0f RSP: 0018:ffffc9001928f768 EFLAGS: 00010246 RAX: d661d39585bd1800 RBX: ffff888079b2e4f8 RCX: 0000000000080000 RDX: ffffc9000d69b000 RSI: 0000000000021c79 RDI: 0000000000021c7a RBP: 0000000000000000 R08: ffffc9001928f007 R09: 1ffff92003251e00 R10: dffffc0000000000 R11: fffff52003251e01 R12: dffffc0000000000 R13: 1ffff1100fb09815 R14: ffff88807d84c000 R15: ffff888079b2e7e8 FS: 00007f1c3ee7c6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2de13ff8 CR3: 0000000054aa6000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: gfs2_glock_put_eventually fs/gfs2/super.c:1275 [inline] gfs2_evict_inode+0x65a/0x1220 fs/gfs2/super.c:1557 evict+0x486/0x870 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+0x173b/0x1f80 fs/gfs2/ops_fstype.c:1313 get_tree_bdev+0x3e4/0x510 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:3366 do_mount fs/namespace.c:3706 [inline] __do_sys_mount fs/namespace.c:3915 [inline] __se_sys_mount+0x2da/0x3c0 fs/namespace.c:3892 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f1c3df900ca Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f1c3ee7be68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f1c3ee7bef0 RCX: 00007f1c3df900ca RDX: 0000200000000140 RSI: 0000200000037f80 RDI: 00007f1c3ee7beb0 RBP: 0000200000000140 R08: 00007f1c3ee7bef0 R09: 0000000002810000 R10: 0000000002810000 R11: 0000000000000246 R12: 0000200000037f80 R13: 00007f1c3ee7beb0 R14: 0000000000037ffc R15: 00002000000001c0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__gfs2_glock_put+0x355/0x3b0 fs/gfs2/glock.c:302 Code: 8b 3f 48 89 de e8 db 15 ff ff eb 25 e8 94 3f e5 fd e9 d1 fe ff ff e8 8a 3f e5 fd 31 ff 48 89 de ba 01 00 00 00 e8 bb df ff ff <0f> 0b e8 74 3f e5 fd 31 f6 65 ff 0d 13 63 63 7c 40 0f 94 c5 40 0f RSP: 0018:ffffc9001928f768 EFLAGS: 00010246 RAX: d661d39585bd1800 RBX: ffff888079b2e4f8 RCX: 0000000000080000 RDX: ffffc9000d69b000 RSI: 0000000000021c79 RDI: 0000000000021c7a RBP: 0000000000000000 R08: ffffc9001928f007 R09: 1ffff92003251e00 R10: dffffc0000000000 R11: fffff52003251e01 R12: dffffc0000000000 R13: 1ffff1100fb09815 R14: ffff88807d84c000 R15: ffff888079b2e7e8 FS: 00007f1c3ee7c6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2de13ff8 CR3: 0000000054aa6000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400