audit: audit_lost=261911 audit_rate_limit=0 audit_backlog_limit=64 general protection fault, probably for non-canonical address 0xdffffc000000000a: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000050-0x0000000000000057] CPU: 0 PID: 27329 Comm: syz-executor.4 Not tainted 6.6.0-rc7-syzkaller-00195-g2af9b20dbb39 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 RIP: 0010:__lock_acquire+0x10d/0x7f70 kernel/locking/lockdep.c:5004 Code: 85 75 18 00 00 83 3d fd 95 2c 0d 00 48 89 9c 24 10 01 00 00 0f 84 f8 0f 00 00 83 3d 5c 8d b2 0b 00 74 34 48 89 d0 48 c1 e8 03 <42> 80 3c 00 00 74 1a 48 89 d7 e8 44 c0 7b 00 48 8b 94 24 80 00 00 RSP: 0018:ffffc9000b2469a0 EFLAGS: 00010006 RAX: 000000000000000a RBX: 1ffff92001648d58 RCX: 0000000000000002 RDX: 0000000000000050 RSI: 0000000000000000 RDI: 0000000000000050 RBP: ffffc9000b246c68 R08: dffffc0000000000 R09: 0000000000000001 R10: dffffc0000000000 R11: fffffbfff1d32dae R12: 0000000000000000 R13: 0000000000000001 R14: 0000000000000002 R15: ffff88801fda0000 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbad659af00 CR3: 000000003167c000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire+0x1e3/0x520 kernel/locking/lockdep.c:5753 seqcount_lockdep_reader_access+0x139/0x220 include/linux/seqlock.h:102 get_fs_root_rcu fs/d_path.c:244 [inline] d_path+0x31b/0x710 fs/d_path.c:286 audit_log_d_path+0xd3/0x310 kernel/audit.c:2138 dump_common_audit_data security/lsm_audit.c:224 [inline] common_lsm_audit+0x7f6/0x1ad0 security/lsm_audit.c:458 smack_log+0x421/0x540 security/smack/smack_access.c:383 smk_tskacc+0x2ff/0x360 security/smack/smack_access.c:253 smack_inode_getattr+0x203/0x270 security/smack/smack_lsm.c:1271 security_inode_getattr+0xd3/0x120 security/security.c:2153 vfs_getattr+0x2a/0x3a0 fs/stat.c:169 ovl_getattr+0x1b8/0xfc0 fs/overlayfs/inode.c:174 ima_check_last_writer security/integrity/ima/ima_main.c:171 [inline] ima_file_free+0x26e/0x4b0 security/integrity/ima/ima_main.c:203 __fput+0x36a/0x910 fs/file_table.c:378 task_work_run+0x24a/0x300 kernel/task_work.c:180 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0xa2c/0x2650 kernel/exit.c:874 do_group_exit+0x206/0x2c0 kernel/exit.c:1024 get_signal+0x175d/0x1840 kernel/signal.c:2892 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:309 exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:168 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline] syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:296 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fbad7a7cae9 Code: Unable to access opcode bytes at 0x7fbad7a7cabf. RSP: 002b:00007fbad65fe0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 RAX: 0000000000000006 RBX: 00007fbad7b9bf80 RCX: 00007fbad7a7cae9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000 RBP: 00007fbad7ac847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fbad7b9bf80 R15: 00007ffcd33dfdb8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__lock_acquire+0x10d/0x7f70 kernel/locking/lockdep.c:5004 Code: 85 75 18 00 00 83 3d fd 95 2c 0d 00 48 89 9c 24 10 01 00 00 0f 84 f8 0f 00 00 83 3d 5c 8d b2 0b 00 74 34 48 89 d0 48 c1 e8 03 <42> 80 3c 00 00 74 1a 48 89 d7 e8 44 c0 7b 00 48 8b 94 24 80 00 00 RSP: 0018:ffffc9000b2469a0 EFLAGS: 00010006 RAX: 000000000000000a RBX: 1ffff92001648d58 RCX: 0000000000000002 RDX: 0000000000000050 RSI: 0000000000000000 RDI: 0000000000000050 RBP: ffffc9000b246c68 R08: dffffc0000000000 R09: 0000000000000001 R10: dffffc0000000000 R11: fffffbfff1d32dae R12: 0000000000000000 R13: 0000000000000001 R14: 0000000000000002 R15: ffff88801fda0000 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbad659af00 CR3: 000000003167c000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 85 75 18 test %esi,0x18(%rbp) 3: 00 00 add %al,(%rax) 5: 83 3d fd 95 2c 0d 00 cmpl $0x0,0xd2c95fd(%rip) # 0xd2c9609 c: 48 89 9c 24 10 01 00 mov %rbx,0x110(%rsp) 13: 00 14: 0f 84 f8 0f 00 00 je 0x1012 1a: 83 3d 5c 8d b2 0b 00 cmpl $0x0,0xbb28d5c(%rip) # 0xbb28d7d 21: 74 34 je 0x57 23: 48 89 d0 mov %rdx,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 80 3c 00 00 cmpb $0x0,(%rax,%r8,1) <-- trapping instruction 2f: 74 1a je 0x4b 31: 48 89 d7 mov %rdx,%rdi 34: e8 44 c0 7b 00 call 0x7bc07d 39: 48 rex.W 3a: 8b .byte 0x8b 3b: 94 xchg %eax,%esp 3c: 24 80 and $0x80,%al