Oops: general protection fault, probably for non-canonical address 0xdffffc0004c15524: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: probably user-memory-access in range [0x00000000260aa920-0x00000000260aa927] CPU: 0 UID: 0 PID: 7730 Comm: syz.3.228 Not tainted 6.11.0-rc6-syzkaller-00048-gc7fb1692dc01 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:pid_is_meaningful fs/gfs2/glock.c:1483 [inline] RIP: 0010:dump_holder fs/gfs2/glock.c:2314 [inline] RIP: 0010:gfs2_dump_glock+0xf05/0x1bb0 fs/gfs2/glock.c:2430 Code: c6 05 19 05 05 0c 01 48 c7 c7 80 e7 2e 8c be 48 03 00 00 48 c7 c2 c0 e7 2e 8c e8 b6 37 94 fd 4d 8d 75 20 4d 89 f7 49 c1 ef 03 <43> 0f b6 04 27 84 c0 0f 85 b6 06 00 00 41 0f b7 1e 89 de 81 e6 00 RSP: 0018:ffffc90002e2f2a0 EFLAGS: 00010207 RAX: ffffffff83dbf5e2 RBX: 0000000000000001 RCX: 0000000000040000 RDX: ffffc9000949d000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffffc90002e2f590 R08: ffffffff83dbf5cb R09: 1ffffffff27f4d08 R10: dffffc0000000000 R11: fffffbfff27f4d09 R12: dffffc0000000000 R13: 00000000260aa904 R14: 00000000260aa924 R15: 0000000004c15524 FS: 00007f94953a46c0(0000) GS:ffff8880b8800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f45620241f4 CR3: 0000000067376000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: gfs2_consist_inode_i+0xf5/0x110 fs/gfs2/util.c:457 gfs2_dirent_scan+0x52b/0x670 gfs2_dirent_search+0x30e/0x8c0 fs/gfs2/dir.c:853 gfs2_dir_search+0xb2/0x2f0 fs/gfs2/dir.c:1653 gfs2_lookupi+0x461/0x5e0 fs/gfs2/inode.c:340 __gfs2_lookup+0xa4/0x280 fs/gfs2/inode.c:896 __lookup_slow+0x28c/0x3f0 fs/namei.c:1718 lookup_slow+0x53/0x70 fs/namei.c:1735 walk_component+0x2e1/0x410 fs/namei.c:2039 lookup_last fs/namei.c:2542 [inline] path_lookupat+0x16f/0x450 fs/namei.c:2566 filename_lookup+0x256/0x610 fs/namei.c:2595 user_path_at+0x3a/0x60 fs/namei.c:3002 do_sys_truncate+0xa4/0x190 fs/open.c:132 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f949457cef9 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:00007f94953a4038 EFLAGS: 00000246 ORIG_RAX: 000000000000004c RAX: ffffffffffffffda RBX: 00007f9494735f80 RCX: 00007f949457cef9 RDX: 0000000000000000 RSI: 1000000000005e02 RDI: 0000000020000280 RBP: 00007f94945ef01e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f9494735f80 R15: 00007fff9eb911e8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:pid_is_meaningful fs/gfs2/glock.c:1483 [inline] RIP: 0010:dump_holder fs/gfs2/glock.c:2314 [inline] RIP: 0010:gfs2_dump_glock+0xf05/0x1bb0 fs/gfs2/glock.c:2430 Code: c6 05 19 05 05 0c 01 48 c7 c7 80 e7 2e 8c be 48 03 00 00 48 c7 c2 c0 e7 2e 8c e8 b6 37 94 fd 4d 8d 75 20 4d 89 f7 49 c1 ef 03 <43> 0f b6 04 27 84 c0 0f 85 b6 06 00 00 41 0f b7 1e 89 de 81 e6 00 RSP: 0018:ffffc90002e2f2a0 EFLAGS: 00010207 RAX: ffffffff83dbf5e2 RBX: 0000000000000001 RCX: 0000000000040000 RDX: ffffc9000949d000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffffc90002e2f590 R08: ffffffff83dbf5cb R09: 1ffffffff27f4d08 R10: dffffc0000000000 R11: fffffbfff27f4d09 R12: dffffc0000000000 R13: 00000000260aa904 R14: 00000000260aa924 R15: 0000000004c15524 FS: 00007f94953a46c0(0000) GS:ffff8880b8800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f45620241f4 CR3: 0000000067376000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: c6 05 19 05 05 0c 01 movb $0x1,0xc050519(%rip) # 0xc050520 7: 48 c7 c7 80 e7 2e 8c mov $0xffffffff8c2ee780,%rdi e: be 48 03 00 00 mov $0x348,%esi 13: 48 c7 c2 c0 e7 2e 8c mov $0xffffffff8c2ee7c0,%rdx 1a: e8 b6 37 94 fd call 0xfd9437d5 1f: 4d 8d 75 20 lea 0x20(%r13),%r14 23: 4d 89 f7 mov %r14,%r15 26: 49 c1 ef 03 shr $0x3,%r15 * 2a: 43 0f b6 04 27 movzbl (%r15,%r12,1),%eax <-- trapping instruction 2f: 84 c0 test %al,%al 31: 0f 85 b6 06 00 00 jne 0x6ed 37: 41 0f b7 1e movzwl (%r14),%ebx 3b: 89 de mov %ebx,%esi 3d: 81 .byte 0x81 3e: e6 00 out %al,$0x0