[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 62.553464][ T26] audit: type=1800 audit(1571942708.458:25): pid=8776 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 62.594282][ T26] audit: type=1800 audit(1571942708.458:26): pid=8776 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 62.635920][ T26] audit: type=1800 audit(1571942708.458:27): pid=8776 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.25' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 476.424640][T11493] ================================================================== [ 476.432926][T11493] BUG: KASAN: use-after-free in bpf_prog_kallsyms_find+0x2a9/0x2c0 [ 476.440805][T11493] Read of size 8 at addr ffff8880a90b7048 by task syz-executor688/11493 [ 476.449105][T11493] [ 476.451429][T11493] CPU: 1 PID: 11493 Comm: syz-executor688 Not tainted 5.4.0-rc4+ #0 [ 476.459383][T11493] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 476.469429][T11493] Call Trace: [ 476.472776][T11493] dump_stack+0x172/0x1f0 [ 476.477099][T11493] ? bpf_prog_kallsyms_find+0x2a9/0x2c0 [ 476.482634][T11493] print_address_description.constprop.0.cold+0xd4/0x30b [ 476.489651][T11493] ? bpf_prog_kallsyms_find+0x2a9/0x2c0 [ 476.495182][T11493] ? bpf_prog_kallsyms_find+0x2a9/0x2c0 [ 476.500714][T11493] __kasan_report.cold+0x1b/0x41 [ 476.505641][T11493] ? bpf_prog_kallsyms_find+0x2a9/0x2c0 [ 476.511170][T11493] kasan_report+0x12/0x20 [ 476.515482][T11493] __asan_report_load8_noabort+0x14/0x20 [ 476.521126][T11493] bpf_prog_kallsyms_find+0x2a9/0x2c0 [ 476.526482][T11493] ? rcu_rnp_online_cpus+0x11/0x40 [ 476.531579][T11493] is_bpf_text_address+0x78/0x170 [ 476.536593][T11493] kernel_text_address+0x73/0xf0 [ 476.541516][T11493] __kernel_text_address+0xd/0x40 [ 476.546526][T11493] unwind_get_return_address+0x61/0xa0 [ 476.551968][T11493] ? profile_setup.cold+0xbb/0xbb [ 476.556978][T11493] arch_stack_walk+0x97/0xf0 [ 476.561578][T11493] stack_trace_save+0xac/0xe0 [ 476.566239][T11493] ? stack_trace_consume_entry+0x190/0x190 [ 476.572039][T11493] save_stack+0x23/0x90 [ 476.576197][T11493] ? save_stack+0x23/0x90 [ 476.580523][T11493] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 476.586333][T11493] ? kasan_slab_alloc+0xf/0x20 [ 476.591077][T11493] ? kmem_cache_alloc+0x121/0x710 [ 476.596096][T11493] ? __d_alloc+0x2e/0x8c0 [ 476.600412][T11493] ? d_alloc+0x4d/0x280 [ 476.604554][T11493] ? d_alloc_parallel+0xf4/0x1c30 [ 476.609665][T11493] ? __lookup_slow+0x1ab/0x500 [ 476.614427][T11493] ? lookup_slow+0x58/0x80 [ 476.618836][T11493] ? walk_component+0x747/0x2000 [ 476.623759][T11493] ? link_path_walk.part.0+0x5ab/0x1340 [ 476.629287][T11493] ? path_openat+0x202/0x46d0 [ 476.633951][T11493] ? do_filp_open+0x1a1/0x280 [ 476.638623][T11493] ? do_sys_open+0x3fe/0x5d0 [ 476.643198][T11493] ? __x64_sys_open+0x7e/0xc0 [ 476.647948][T11493] ? do_syscall_64+0xfa/0x760 [ 476.652685][T11493] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 476.658826][T11493] ? __kasan_check_read+0x11/0x20 [ 476.663872][T11493] ? __lock_acquire+0x16f2/0x4a00 [ 476.668910][T11493] ? fs_reclaim_acquire.part.0+0x30/0x30 [ 476.674530][T11493] ? find_held_lock+0x35/0x130 [ 476.681465][T11493] ? __kasan_check_read+0x11/0x20 [ 476.686474][T11493] ? mark_lock+0xc2/0x1220 [ 476.690882][T11493] ? mark_held_locks+0xa4/0xf0 [ 476.695637][T11493] ? kasan_unpoison_shadow+0x35/0x50 [ 476.700919][T11493] __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 476.706541][T11493] kasan_slab_alloc+0xf/0x20 [ 476.711117][T11493] kmem_cache_alloc+0x121/0x710 [ 476.715965][T11493] ? lock_downgrade+0x920/0x920 [ 476.720823][T11493] __d_alloc+0x2e/0x8c0 [ 476.724976][T11493] ? mark_lock+0xc2/0x1220 [ 476.729397][T11493] d_alloc+0x4d/0x280 [ 476.733378][T11493] ? __kasan_check_read+0x11/0x20 [ 476.738396][T11493] d_alloc_parallel+0xf4/0x1c30 [ 476.743335][T11493] ? __lock_acquire+0x16f2/0x4a00 [ 476.748354][T11493] ? __d_lookup_rcu+0x6c0/0x6c0 [ 476.753202][T11493] ? __lock_acquire+0x16f2/0x4a00 [ 476.758217][T11493] ? unlazy_walk+0x168/0x3c0 [ 476.762796][T11493] ? lockdep_init_map+0x1be/0x6d0 [ 476.767834][T11493] ? lockdep_init_map+0x1be/0x6d0 [ 476.773222][T11493] __lookup_slow+0x1ab/0x500 [ 476.777812][T11493] ? vfs_unlink+0x620/0x620 [ 476.782316][T11493] ? trailing_symlink+0x990/0x990 [ 476.787330][T11493] lookup_slow+0x58/0x80 [ 476.791573][T11493] walk_component+0x747/0x2000 [ 476.796334][T11493] ? path_init+0x18f0/0x18f0 [ 476.800910][T11493] ? kmem_cache_alloc_trace+0x397/0x790 [ 476.806454][T11493] ? __kasan_check_read+0x11/0x20 [ 476.811480][T11493] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 476.817730][T11493] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 476.823958][T11493] ? security_inode_permission+0xcb/0x100 [ 476.829664][T11493] ? inode_permission+0xb4/0x560 [ 476.834677][T11493] link_path_walk.part.0+0x5ab/0x1340 [ 476.840040][T11493] ? walk_component+0x2000/0x2000 [ 476.845066][T11493] path_openat+0x202/0x46d0 [ 476.849584][T11493] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 476.855419][T11493] ? kasan_slab_alloc+0xf/0x20 [ 476.860177][T11493] ? kmem_cache_alloc+0x121/0x710 [ 476.865187][T11493] ? getname_flags+0xd6/0x5b0 [ 476.869871][T11493] ? getname+0x1a/0x20 [ 476.873941][T11493] ? do_sys_open+0x2c9/0x5d0 [ 476.878522][T11493] ? __kasan_check_read+0x11/0x20 [ 476.883535][T11493] ? mark_lock+0xc2/0x1220 [ 476.887944][T11493] ? path_lookupat.isra.0+0x8d0/0x8d0 [ 476.893303][T11493] ? __alloc_fd+0x487/0x620 [ 476.897968][T11493] do_filp_open+0x1a1/0x280 [ 476.902545][T11493] ? may_open_dev+0x100/0x100 [ 476.907235][T11493] ? simple_attr_release+0x50/0x50 [ 476.912333][T11493] ? do_raw_spin_unlock+0x57/0x270 [ 476.917437][T11493] ? _raw_spin_unlock+0x2d/0x50 [ 476.922285][T11493] do_sys_open+0x3fe/0x5d0 [ 476.926689][T11493] ? filp_open+0x80/0x80 [ 476.930930][T11493] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 476.936377][T11493] ? do_syscall_64+0x26/0x760 [ 476.941039][T11493] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 476.947107][T11493] ? do_syscall_64+0x26/0x760 [ 476.951790][T11493] __x64_sys_open+0x7e/0xc0 [ 476.956302][T11493] do_syscall_64+0xfa/0x760 [ 476.960798][T11493] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 476.966696][T11493] RIP: 0033:0x4011a0 [ 476.970577][T11493] Code: 01 f0 ff ff 0f 83 c0 0b 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d 2d 15 2d 00 00 75 14 b8 02 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 94 0b 00 00 c3 48 83 ec 08 e8 fa 00 00 00 [ 476.990169][T11493] RSP: 002b:00007fff62581448 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 476.998570][T11493] RAX: ffffffffffffffda RBX: 00007fff62581474 RCX: 00000000004011a0 [ 477.006541][T11493] RDX: 00007fff6258147a RSI: 0000000000080001 RDI: 00000000004a2422 [ 477.014516][T11493] RBP: 00007fff62581470 R08: 0000000000000000 R09: 0000000000000004 [ 477.022474][T11493] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004021c0 [ 477.030431][T11493] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 477.038410][T11493] [ 477.040736][T11493] Allocated by task 11491: [ 477.045229][T11493] save_stack+0x23/0x90 [ 477.049386][T11493] __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 477.055010][T11493] kasan_kmalloc+0x9/0x10 [ 477.059326][T11493] kmem_cache_alloc_trace+0x158/0x790 [ 477.064691][T11493] bpf_prog_alloc_no_stats+0xe6/0x2b0 [ 477.070043][T11493] bpf_check+0x6b3d/0x99c0 [ 477.074454][T11493] bpf_prog_load+0xe68/0x1660 [ 477.079114][T11493] __do_sys_bpf+0xa44/0x3350 [ 477.083700][T11493] __x64_sys_bpf+0x73/0xb0 [ 477.088126][T11493] do_syscall_64+0xfa/0x760 [ 477.092628][T11493] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 477.098497][T11493] [ 477.100810][T11493] Freed by task 3120: [ 477.104787][T11493] save_stack+0x23/0x90 [ 477.108925][T11493] __kasan_slab_free+0x102/0x150 [ 477.113843][T11493] kasan_slab_free+0xe/0x10 [ 477.118329][T11493] kfree+0x10a/0x2c0 [ 477.122211][T11493] __bpf_prog_free+0x87/0xc0 [ 477.126783][T11493] bpf_jit_free+0x64/0x1b0 [ 477.131181][T11493] bpf_prog_free_deferred+0x1a6/0x350 [ 477.136553][T11493] process_one_work+0x9af/0x1740 [ 477.141474][T11493] worker_thread+0x98/0xe40 [ 477.145975][T11493] kthread+0x361/0x430 [ 477.150028][T11493] ret_from_fork+0x24/0x30 [ 477.154418][T11493] [ 477.156732][T11493] The buggy address belongs to the object at ffff8880a90b7000 [ 477.156732][T11493] which belongs to the cache kmalloc-512 of size 512 [ 477.170767][T11493] The buggy address is located 72 bytes inside of [ 477.170767][T11493] 512-byte region [ffff8880a90b7000, ffff8880a90b7200) [ 477.183934][T11493] The buggy address belongs to the page: [ 477.189557][T11493] page:ffffea0002a42dc0 refcount:1 mapcount:0 mapping:ffff8880aa400a80 index:0x0 [ 477.198649][T11493] flags: 0x1fffc0000000200(slab) [ 477.203603][T11493] raw: 01fffc0000000200 ffffea0002a42d88 ffffea0002a1e088 ffff8880aa400a80 [ 477.212200][T11493] raw: 0000000000000000 ffff8880a90b7000 0000000100000004 0000000000000000 [ 477.220786][T11493] page dumped because: kasan: bad access detected [ 477.227294][T11493] [ 477.229633][T11493] Memory state around the buggy address: [ 477.235251][T11493] ffff8880a90b6f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 477.243296][T11493] ffff8880a90b6f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 477.251342][T11493] >ffff8880a90b7000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 477.259382][T11493] ^ [ 477.265783][T11493] ffff8880a90b7080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb executing program executing program executing program executing program executing program executing program executing program [ 477.273827][T11493] ffff8880a90b7100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 477.282000][T11493] ================================================================== [ 477.290042][T11493] Disabling lock debugging due to kernel taint [ 477.314428][T11493] Kernel panic - not syncing: panic_on_warn set ... [ 477.321070][T11493] CPU: 0 PID: 11493 Comm: syz-executor688 Tainted: G B 5.4.0-rc4+ #0 [ 477.330422][T11493] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 477.340630][T11493] Call Trace: [ 477.343905][T11493] dump_stack+0x172/0x1f0 [ 477.348232][T11493] panic+0x2e3/0x75c [ 477.352110][T11493] ? add_taint.cold+0x16/0x16 [ 477.356794][T11493] ? bpf_prog_kallsyms_find+0x2a9/0x2c0 [ 477.362329][T11493] ? preempt_schedule+0x4b/0x60 [ 477.367160][T11493] ? ___preempt_schedule+0x16/0x20 [ 477.372251][T11493] ? trace_hardirqs_on+0x5e/0x240 [ 477.377257][T11493] ? bpf_prog_kallsyms_find+0x2a9/0x2c0 [ 477.382803][T11493] end_report+0x47/0x4f [ 477.386986][T11493] ? bpf_prog_kallsyms_find+0x2a9/0x2c0 [ 477.392555][T11493] __kasan_report.cold+0xe/0x41 [ 477.397400][T11493] ? bpf_prog_kallsyms_find+0x2a9/0x2c0 [ 477.402944][T11493] kasan_report+0x12/0x20 [ 477.407296][T11493] __asan_report_load8_noabort+0x14/0x20 [ 477.412918][T11493] bpf_prog_kallsyms_find+0x2a9/0x2c0 [ 477.418287][T11493] ? rcu_rnp_online_cpus+0x11/0x40 [ 477.423465][T11493] is_bpf_text_address+0x78/0x170 [ 477.428467][T11493] kernel_text_address+0x73/0xf0 [ 477.433392][T11493] __kernel_text_address+0xd/0x40 [ 477.438396][T11493] unwind_get_return_address+0x61/0xa0 [ 477.443833][T11493] ? profile_setup.cold+0xbb/0xbb [ 477.448840][T11493] arch_stack_walk+0x97/0xf0 [ 477.453415][T11493] stack_trace_save+0xac/0xe0 [ 477.458071][T11493] ? stack_trace_consume_entry+0x190/0x190 [ 477.463860][T11493] save_stack+0x23/0x90 [ 477.467993][T11493] ? save_stack+0x23/0x90 [ 477.472301][T11493] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 477.478084][T11493] ? kasan_slab_alloc+0xf/0x20 [ 477.482826][T11493] ? kmem_cache_alloc+0x121/0x710 [ 477.487827][T11493] ? __d_alloc+0x2e/0x8c0 [ 477.492131][T11493] ? d_alloc+0x4d/0x280 [ 477.496287][T11493] ? d_alloc_parallel+0xf4/0x1c30 [ 477.501291][T11493] ? __lookup_slow+0x1ab/0x500 [ 477.506031][T11493] ? lookup_slow+0x58/0x80 [ 477.510426][T11493] ? walk_component+0x747/0x2000 [ 477.515340][T11493] ? link_path_walk.part.0+0x5ab/0x1340 [ 477.520878][T11493] ? path_openat+0x202/0x46d0 [ 477.525541][T11493] ? do_filp_open+0x1a1/0x280 [ 477.530202][T11493] ? do_sys_open+0x3fe/0x5d0 [ 477.534781][T11493] ? __x64_sys_open+0x7e/0xc0 [ 477.539442][T11493] ? do_syscall_64+0xfa/0x760 [ 477.544362][T11493] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 477.550407][T11493] ? __kasan_check_read+0x11/0x20 [ 477.555423][T11493] ? __lock_acquire+0x16f2/0x4a00 [ 477.560456][T11493] ? fs_reclaim_acquire.part.0+0x30/0x30 [ 477.566073][T11493] ? find_held_lock+0x35/0x130 [ 477.570825][T11493] ? __kasan_check_read+0x11/0x20 [ 477.575838][T11493] ? mark_lock+0xc2/0x1220 [ 477.580239][T11493] ? mark_held_locks+0xa4/0xf0 [ 477.584985][T11493] ? kasan_unpoison_shadow+0x35/0x50 [ 477.590248][T11493] __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 477.596223][T11493] kasan_slab_alloc+0xf/0x20 [ 477.600813][T11493] kmem_cache_alloc+0x121/0x710 [ 477.605658][T11493] ? lock_downgrade+0x920/0x920 [ 477.610501][T11493] __d_alloc+0x2e/0x8c0 [ 477.614638][T11493] ? mark_lock+0xc2/0x1220 [ 477.619037][T11493] d_alloc+0x4d/0x280 [ 477.622998][T11493] ? __kasan_check_read+0x11/0x20 [ 477.628018][T11493] d_alloc_parallel+0xf4/0x1c30 [ 477.632849][T11493] ? __lock_acquire+0x16f2/0x4a00 [ 477.637875][T11493] ? __d_lookup_rcu+0x6c0/0x6c0 [ 477.642705][T11493] ? __lock_acquire+0x16f2/0x4a00 [ 477.647724][T11493] ? unlazy_walk+0x168/0x3c0 [ 477.652319][T11493] ? lockdep_init_map+0x1be/0x6d0 [ 477.657323][T11493] ? lockdep_init_map+0x1be/0x6d0 [ 477.662340][T11493] __lookup_slow+0x1ab/0x500 [ 477.666914][T11493] ? vfs_unlink+0x620/0x620 [ 477.671405][T11493] ? trailing_symlink+0x990/0x990 [ 477.676423][T11493] lookup_slow+0x58/0x80 [ 477.680649][T11493] walk_component+0x747/0x2000 [ 477.685394][T11493] ? path_init+0x18f0/0x18f0 [ 477.689976][T11493] ? kmem_cache_alloc_trace+0x397/0x790 [ 477.695511][T11493] ? __kasan_check_read+0x11/0x20 [ 477.700541][T11493] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 477.706774][T11493] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 477.713022][T11493] ? security_inode_permission+0xcb/0x100 [ 477.718723][T11493] ? inode_permission+0xb4/0x560 [ 477.723652][T11493] link_path_walk.part.0+0x5ab/0x1340 [ 477.729006][T11493] ? walk_component+0x2000/0x2000 [ 477.734017][T11493] path_openat+0x202/0x46d0 [ 477.738502][T11493] ? __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 477.744305][T11493] ? kasan_slab_alloc+0xf/0x20 [ 477.749047][T11493] ? kmem_cache_alloc+0x121/0x710 [ 477.754062][T11493] ? getname_flags+0xd6/0x5b0 [ 477.758732][T11493] ? getname+0x1a/0x20 [ 477.762800][T11493] ? do_sys_open+0x2c9/0x5d0 [ 477.767369][T11493] ? __kasan_check_read+0x11/0x20 [ 477.772373][T11493] ? mark_lock+0xc2/0x1220 [ 477.776776][T11493] ? path_lookupat.isra.0+0x8d0/0x8d0 [ 477.782131][T11493] ? __alloc_fd+0x487/0x620 [ 477.786621][T11493] do_filp_open+0x1a1/0x280 [ 477.791106][T11493] ? may_open_dev+0x100/0x100 [ 477.795768][T11493] ? simple_attr_release+0x50/0x50 [ 477.800861][T11493] ? do_raw_spin_unlock+0x57/0x270 [ 477.805977][T11493] ? _raw_spin_unlock+0x2d/0x50 [ 477.810852][T11493] do_sys_open+0x3fe/0x5d0 [ 477.815265][T11493] ? filp_open+0x80/0x80 [ 477.819577][T11493] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 477.825028][T11493] ? do_syscall_64+0x26/0x760 [ 477.829696][T11493] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 477.835751][T11493] ? do_syscall_64+0x26/0x760 [ 477.840412][T11493] __x64_sys_open+0x7e/0xc0 [ 477.844897][T11493] do_syscall_64+0xfa/0x760 [ 477.849382][T11493] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 477.855277][T11493] RIP: 0033:0x4011a0 [ 477.859165][T11493] Code: 01 f0 ff ff 0f 83 c0 0b 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d 2d 15 2d 00 00 75 14 b8 02 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 94 0b 00 00 c3 48 83 ec 08 e8 fa 00 00 00 [ 477.878750][T11493] RSP: 002b:00007fff62581448 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 477.887146][T11493] RAX: ffffffffffffffda RBX: 00007fff62581474 RCX: 00000000004011a0 [ 477.895110][T11493] RDX: 00007fff6258147a RSI: 0000000000080001 RDI: 00000000004a2422 [ 477.903077][T11493] RBP: 00007fff62581470 R08: 0000000000000000 R09: 0000000000000004 [ 477.911039][T11493] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004021c0 [ 477.920295][T11493] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 477.929544][T11493] Kernel Offset: disabled [ 477.933872][T11493] Rebooting in 86400 seconds..