[ 402.651329][T12074] loop_set_block_size: loop0 () has still dirty pages (nrpages=3) [ 405.723292][ T402] syz-executor.0 (402) used greatest stack depth: 19928 bytes left [ 406.424682][ T179] device bridge_slave_1 left promiscuous mode [ 406.430831][ T179] bridge0: port 2(bridge_slave_1) entered disabled state [ 406.438051][ T179] device bridge_slave_0 left promiscuous mode [ 406.444801][ T179] bridge0: port 1(bridge_slave_0) entered disabled state Warning: Permanently added '10.128.1.49' (ED25519) to the list of known hosts. [ 406.753125][ T1187] kasan: CONFIG_KASAN_INLINE enabled [ 406.758614][ T1187] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 406.767183][ T1187] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 406.774026][ T1187] CPU: 1 PID: 1187 Comm: udevd Not tainted 5.4.249-syzkaller-04713-ga349c7903997 #0 [ 406.783831][ T1187] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 406.793905][ T1187] RIP: 0010:bdev_read_page+0x37/0x190 [ 406.799353][ T1187] Code: 10 49 89 d5 48 89 74 24 08 49 89 fc 49 bf 00 00 00 00 00 fc ff df e8 78 4b ba ff 49 8d 9c 24 80 00 00 00 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 2a 0b ea ff bd d0 04 00 00 48 03 [ 406.819201][ T1187] RSP: 0018:ffff8881eaf073b8 EFLAGS: 00010202 [ 406.825100][ T1187] RAX: 0000000000000010 RBX: 0000000000000080 RCX: ffff8881eb075e80 [ 406.832936][ T1187] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 406.840866][ T1187] RBP: ffff8881eaf075d0 R08: ffffffff81ab1fc6 R09: fffff94000ee9f81 [ 406.848946][ T1187] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 [ 406.856853][ T1187] R13: ffffea000774fc00 R14: 0000000000000014 R15: dffffc0000000000 [ 406.864975][ T1187] FS: 00007efc66912c80(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 406.873823][ T1187] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 406.880243][ T1187] CR2: 00007ffc05da8458 CR3: 00000001ee3c5000 CR4: 00000000003406a0 [ 406.888063][ T1187] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 406.895948][ T1187] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 406.903842][ T1187] Call Trace: [ 406.906986][ T1187] ? __die+0xb4/0x100 [ 406.910798][ T1187] ? die+0x26/0x50 [ 406.914375][ T1187] ? do_general_protection+0x266/0x3c0 [ 406.919645][ T1187] ? check_preemption_disabled+0x153/0x320 [ 406.925408][ T1187] ? do_trap+0x340/0x340 [ 406.929580][ T1187] ? debug_smp_processor_id+0x20/0x20 [ 406.934778][ T1187] ? __count_memcg_events+0x97/0x210 [ 406.939910][ T1187] ? general_protection+0x28/0x30 [ 406.944766][ T1187] ? do_mpage_readpage+0xd06/0x1b20 [ 406.949971][ T1187] ? bdev_read_page+0x37/0x190 [ 406.954750][ T1187] ? bdev_read_page+0x28/0x190 [ 406.959349][ T1187] do_mpage_readpage+0x1458/0x1b20 [ 406.964494][ T1187] ? mpage_readpages+0x500/0x500 [ 406.969346][ T1187] ? add_to_page_cache_lru+0x221/0x2c0 [ 406.974633][ T1187] ? get_reg+0x220/0x220 [ 406.978718][ T1187] mpage_readpages+0x36e/0x500 [ 406.983312][ T1187] ? __bpf_trace_android_fs_data_end_template+0x30/0x30 [ 406.990252][ T1187] ? blkdev_direct_IO+0x1e00/0x1e00 [ 406.995401][ T1187] ? unwind_next_frame+0x181e/0x1ea0 [ 407.000576][ T1187] ? blkdev_writepages+0x20/0x20 [ 407.005350][ T1187] read_pages+0x119/0x400 [ 407.009677][ T1187] ? __do_page_cache_readahead+0x4f0/0x4f0 [ 407.015269][ T1187] __do_page_cache_readahead+0x448/0x4f0 [ 407.020735][ T1187] ? read_cache_pages_invalidate_pages+0x1b0/0x1b0 [ 407.027207][ T1187] page_cache_sync_readahead+0x3f0/0x460 [ 407.032773][ T1187] generic_file_read_iter+0x673/0x21f0 [ 407.038233][ T1187] ? entry_SYSCALL_64_after_hwframe+0x5c/0xc1 [ 407.044149][ T1187] ? find_get_pages_range_tag+0xae0/0xae0 [ 407.049692][ T1187] ? __kasan_slab_free+0x233/0x270 [ 407.054656][ T1187] ? __kasan_slab_free+0x1b5/0x270 [ 407.059582][ T1187] ? kmem_cache_free+0x10b/0x2c0 [ 407.064448][ T1187] ? __fput+0x47a/0x680 [ 407.068435][ T1187] ? task_work_run+0x140/0x170 [ 407.073059][ T1187] ? exit_to_usermode_loop+0x190/0x1a0 [ 407.078332][ T1187] ? prepare_exit_to_usermode+0x199/0x200 [ 407.083888][ T1187] blkdev_read_iter+0x12a/0x180 [ 407.088650][ T1187] __vfs_read+0x5cd/0x730 [ 407.092751][ T1187] ? rw_verify_area+0x360/0x360 [ 407.097429][ T1187] ? __fsnotify_update_child_dentry_flags+0x290/0x290 [ 407.104029][ T1187] ? security_file_permission+0x1dc/0x2f0 [ 407.109607][ T1187] vfs_read+0x148/0x360 [ 407.113629][ T1187] ksys_read+0x199/0x2c0 [ 407.117655][ T1187] ? debug_smp_processor_id+0x20/0x20 [ 407.122942][ T1187] ? vfs_write+0x4e0/0x4e0 [ 407.127282][ T1187] ? block_llseek+0xa2/0xb0 [ 407.131623][ T1187] do_syscall_64+0xca/0x1c0 [ 407.135960][ T1187] entry_SYSCALL_64_after_hwframe+0x5c/0xc1 [ 407.141693][ T1187] Modules linked in: [ 407.146292][ T1187] ---[ end trace 4397cbbdedd904c7 ]--- [ 407.151648][ T1187] RIP: 0010:bdev_read_page+0x37/0x190 [ 407.156851][ T1187] Code: 10 49 89 d5 48 89 74 24 08 49 89 fc 49 bf 00 00 00 00 00 fc ff df e8 78 4b ba ff 49 8d 9c 24 80 00 00 00 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 2a 0b ea ff bd d0 04 00 00 48 03 [ 407.177026][ T1187] RSP: 0018:ffff8881eaf073b8 EFLAGS: 00010202 [ 407.183589][ T1187] RAX: 0000000000000010 RBX: 0000000000000080 RCX: ffff8881eb075e80 [ 407.191905][ T1187] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 407.200075][ T1187] RBP: ffff8881eaf075d0 R08: ffffffff81ab1fc6 R09: fffff94000ee9f81 [ 407.208369][ T1187] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 [ 407.216688][ T1187] R13: ffffea000774fc00 R14: 0000000000000014 R15: dffffc0000000000 [ 407.225178][ T23] audit: type=1400 audit(1694759396.400:143): avc: denied { remove_name } for pid=144 comm="syslogd" name="messages" dev="tmpfs" ino=976 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 407.227095][ T1187] FS: 00007efc66912c80(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 407.248595][ T23] audit: type=1400 audit(1694759396.400:144): avc: denied { rename } for pid=144 comm="syslogd" name="messages" dev="tmpfs" ino=976 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 407.281010][ T23] audit: type=1400 audit(1694759396.400:145): avc: denied { create } for pid=144 comm="syslogd" name="messages" scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 407.282922][ T1187] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 407.309652][ T1187] CR2: 00007ff120baf1f0 CR3: 00000001ee3c5000 CR4: 00000000003406b0 [ 407.318121][ T1187] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 407.326570][ T1187] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 407.335018][ T1187] Kernel panic - not syncing: Fatal exception [ 407.341064][ T1187] Kernel Offset: disabled [ 407.345274][ T1187] Rebooting in 86400 seconds..