received NULL de[ 268.253518][ T9799] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 vice Apr 13 15:[ 268.253526][ T9799] R13: 0000000000000000 R14: 00007fde251a5fa0 R15: 00007ffe65560b48 32:21 syzkaller [ 268.253545][ T9799] daemon.err dhcpc[ 268.253983][ T9799] ------------[ cut here ]------------ d[5491]: libudev[ 268.468397][ T9799] WARNING: CPU: 1 PID: 9799 at security/landlock/domain.h:133 landlock_free_hierarchy_details security/landlock/domain.h:133 [inline] d[5491]: libudev[ 268.468397][ T9799] WARNING: CPU: 1 PID: 9799 at security/landlock/domain.h:133 landlock_put_hierarchy security/landlock/domain.h:168 [inline] d[5491]: libudev[ 268.468397][ T9799] WARNING: CPU: 1 PID: 9799 at security/landlock/domain.h:133 free_ruleset+0x226/0x270 security/landlock/ruleset.c:490 : received NULL [ 268.479405][ T9799] Modules linked in: device Apr 13 1[ 268.484647][ T9799] CPU: 1 UID: 0 PID: 9799 Comm: syz.1.1467 Not tainted 6.15.0-rc1-syzkaller-00325-g7cdabafc0012 #0 PREEMPT(full) 5:32:21 syzkalle[ 268.498179][ T9799] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 r daemon.err dhc[ 268.509505][ T9799] RIP: 0010:landlock_free_hierarchy_details security/landlock/domain.h:133 [inline] r daemon.err dhc[ 268.509505][ T9799] RIP: 0010:landlock_put_hierarchy security/landlock/domain.h:168 [inline] r daemon.err dhc[ 268.509505][ T9799] RIP: 0010:free_ruleset+0x226/0x270 security/landlock/ruleset.c:490 pcd[5491]: libud[ 268.516130][ T9799] Code: 84 61 ff ff ff 48 89 eb e9 12 ff ff ff e8 a2 99 2a fd be 03 00 00 00 4c 89 f7 e8 c5 f9 3e 00 e9 42 ff ff ff e8 8b 99 2a fd 90 <0f> 0b 90 eb af e8 c0 0b 90 fd e9 4a fe ff ff 48 89 df e8 b3 0b 90 ev: received NUL[ 268.537581][ T9799] RSP: 0000:ffffc9001016fe38 EFLAGS: 00010293 L device Apr 13[ 268.544951][ T9799] RAX: 0000000000000000 RBX: ffff888030d97000 RCX: ffffffff84919aff 15:32:21 syzkal[ 268.554014][ T9799] RDX: ffff88805da12440 RSI: ffffffff8490a3e5 RDI: 0000000000000005 ler daemon.err d[ 268.563356][ T9799] RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 hcpcd[5491]: lib[ 268.572761][ T9799] R10: 0000000000000000 R11: 0000000000000001 R12: ffff88802b2cea00 udev: received N[ 268.582261][ T9799] R13: dffffc0000000000 R14: ffff888030d97020 R15: fffffffffffffff4 ULL device Apr [ 268.591626][ T9799] FS: 00007fde25dd86c0(0000) GS:ffff888124ab2000(0000) knlGS:0000000000000000 13 15:32:21 syzk[ 268.601922][ T9799] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 aller kern.notic[ 268.609863][ T9799] CR2: 0000001b2f801ff8 CR3: 000000005bc64000 CR4: 00000000003526f0 e kernel: [ 267[ 268.620077][ T9799] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 .772954][ T30][ 268.629830][ T9799] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 audit: type=140[ 268.639150][ T9799] Call Trace: 0 audit(17445583[ 268.643620][ T9799] 41.656:156422): [ 268.647957][ T9799] landlock_put_ruleset security/landlock/ruleset.c:498 [inline] 41.656:156422): [ 268.647957][ T9799] landlock_put_ruleset+0xa5/0xb0 security/landlock/ruleset.c:494 avc: denied { [ 268.655241][ T9799] __free_landlock_put_ruleset security/landlock/ruleset.h:200 [inline] avc: denied { [ 268.655241][ T9799] landlock_merge_ruleset+0x218/0x870 security/landlock/ruleset.c:534 read } for pid=[ 268.661866][ T9799] ? prepare_creds+0x583/0x7d0 kernel/cred.c:242 5179 comm="syslo[ 268.668017][ T9799] __do_sys_landlock_restrict_self+0x2a2/0x910 security/landlock/syscalls.c:549 gd" name="log" d[ 268.675620][ T9799] do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] gd" name="log" d[ 268.675620][ T9799] do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94 ev="sda1" ino=19[ 268.681491][ T9799] entry_SYSCALL_64_after_hwframe+0x77/0x7f 15 scontext=syst[ 268.688781][ T9799] RIP: 0033:0x7fde24f8d169 em_u:system_r:sy[ 268.694660][ T9799] 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 slogd_t tcontext[ 268.715660][ T9799] RSP: 002b:00007fde25dd8038 EFLAGS: 00000246 ORIG_RAX: 00000000000001be =system_u:object[ 268.725451][ T9799] RAX: ffffffffffffffda RBX: 00007fde251a5fa0 RCX: 00007fde24f8d169 _r:var_t tclas Apr 13 15:32:21 [ 268.744484][ T9799] RBP: 00007fde25dd8090 R08: 0000000000000000 R09: 0000000000000000 syzkaller kern.w[ 268.753532][ T9799] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 arn kernel: [ 2[ 268.763641][ T9799] R13: 0000000000000000 R14: 00007fde251a5fa0 R15: 00007ffe65560b48 67.807927][ T517[ 268.773017][ T9799]