./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1191029563 <...> Warning: Permanently added '10.128.0.187' (ED25519) to the list of known hosts. execve("./syz-executor1191029563", ["./syz-executor1191029563"], 0x7fffacfd9d30 /* 10 vars */) = 0 brk(NULL) = 0x5555559ff000 brk(0x5555559ffd00) = 0x5555559ffd00 arch_prctl(ARCH_SET_FS, 0x5555559ff380) = 0 set_tid_address(0x5555559ff650) = 5018 set_robust_list(0x5555559ff660, 24) = 0 rseq(0x5555559ffca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1191029563", 4096) = 28 getrandom("\x1d\xc3\xd7\x04\x84\xa5\xda\xa6", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555559ffd00 brk(0x555555a20d00) = 0x555555a20d00 brk(0x555555a21000) = 0x555555a21000 mprotect(0x7f6d1913c000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5019 attached , child_tidptr=0x5555559ff650) = 5019 [pid 5019] set_robust_list(0x5555559ff660, 24) = 0 [pid 5019] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5019] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5019] setsid() = 1 [pid 5019] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5019] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5019] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5019] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5019] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5019] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5019] unshare(CLONE_NEWNS) = 0 [pid 5019] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5019] unshare(CLONE_NEWIPC) = 0 [pid 5019] unshare(CLONE_NEWCGROUP) = 0 [pid 5019] unshare(CLONE_NEWUTS) = 0 [pid 5019] unshare(CLONE_SYSVSEM) = 0 [pid 5019] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5019] write(3, "16777216", 8) = 8 [pid 5019] close(3) = 0 [pid 5019] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5019] write(3, "536870912", 9) = 9 [pid 5019] close(3) = 0 [pid 5019] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5019] write(3, "1024", 4) = 4 [pid 5019] close(3) = 0 [pid 5019] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5019] write(3, "8192", 4) = 4 [pid 5019] close(3) = 0 [pid 5019] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5019] write(3, "1024", 4) = 4 [pid 5019] close(3) = 0 [pid 5019] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5019] write(3, "1024", 4) = 4 [pid 5019] close(3) = 0 [pid 5019] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5019] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5019] close(3) = 0 [pid 5019] getpid() = 1 [pid 5019] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 43.412808][ T5030] dump_stack_lvl+0xd9/0x1b0 [ 43.417375][ T5030] print_report+0xc4/0x620 [ 43.421772][ T5030] ? __virt_addr_valid+0x5e/0x2d0 [ 43.426772][ T5030] ? __phys_addr+0xc6/0x140 [ 43.431249][ T5030] kasan_report+0xda/0x110 [ 43.435638][ T5030] ? read_descriptors+0x27e/0x290 [ 43.440642][ T5030] ? read_descriptors+0x27e/0x290 [ 43.445641][ T5030] read_descriptors+0x27e/0x290 [ 43.450468][ T5030] sysfs_kf_bin_read+0x1a0/0x270 [ 43.455380][ T5030] ? urbnum_show+0x80/0x80 [ 43.459864][ T5030] ? kernfs_create_link+0x230/0x230 [ 43.465054][ T5030] kernfs_fop_read_iter+0x37c/0x680 [ 43.470240][ T5030] vfs_read+0x4e0/0x930 [ 43.474385][ T5030] ? kernel_read+0x1b0/0x1b0 [ 43.478981][ T5030] ? build_open_flags+0x690/0x690 [ 43.483989][ T5030] ? putname+0x101/0x140 [ 43.488224][ T5030] ? __fget_light+0x1fc/0x260 [ 43.492888][ T5030] ksys_read+0x12f/0x250 [ 43.497118][ T5030] ? vfs_write+0xe40/0xe40 [ 43.501608][ T5030] ? syscall_enter_from_user_mode+0x26/0x80 [ 43.507494][ T5030] do_syscall_64+0x38/0xb0 [ 43.511894][ T5030] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 43.517777][ T5030] RIP: 0033:0x7f0570b99b6a [ 43.522173][ T5030] Code: 00 3d 00 00 41 00 75 0d 50 48 8d 3d 2d 08 0a 00 e8 ea 7d 01 00 31 c0 e9 07 ff ff ff 64 8b 04 25 18 00 00 00 85 c0 75 1b 0f 05 <48> 3d 00 f0 ff ff 76 6c 48 8b 15 8f a2 0d 00 f7 d8 64 89 02 48 83 [ 43.541851][ T5030] RSP: 002b:00007ffff72ef498 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 43.550246][ T5030] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f0570b99b6a [ 43.558307][ T5030] RDX: 0000000000010011 RSI: 00007ffff72ef4c7 RDI: 0000000000000008 [ 43.566261][ T5030] RBP: 0000000000000008 R08: 0000000000000003 R09: b4d8a3e856476f50 [ 43.574214][ T5030] R10: 0000000000000000 R11: 0000000000000246 R12: 000055f8f5d42550 [ 43.582169][ T5030] R13: 00007ffff72ffba8 R14: 00007ffff73001f8 R15: 00007ffff72ef4c7 [ 43.590125][ T5030] [ 43.593122][ T5030] [ 43.595424][ T5030] Allocated by task 9: [ 43.599470][ T5030] kasan_save_stack+0x33/0x50 [ 43.604133][ T5030] kasan_set_track+0x25/0x30 [ 43.608711][ T5030] __kasan_kmalloc+0xa2/0xb0 [ 43.613286][ T5030] __kmalloc+0x5d/0x100 [ 43.617431][ T5030] usb_get_configuration+0x191/0x5640 [ 43.622787][ T5030] usb_new_device+0x1115/0x1960 [ 43.627622][ T5030] hub_event+0x307f/0x5230 [ 43.632022][ T5030] process_one_work+0xaa2/0x16f0 [ 43.636947][ T5030] worker_thread+0x687/0x1110 [ 43.641622][ T5030] kthread+0x33a/0x430 [ 43.645687][ T5030] ret_from_fork+0x2c/0x70 [ 43.650089][ T5030] ret_from_fork_asm+0x11/0x20 [ 43.654840][ T5030] [ 43.657232][ T5030] The buggy address belongs to the object at ffff888022cc59d8 [ 43.657232][ T5030] which belongs to the cache kmalloc-8 of size 8 [ 43.671021][ T5030] The buggy address is located 0 bytes to the right of [ 43.671021][ T5030] allocated 8-byte region [ffff888022cc59d8, ffff888022cc59e0) [ 43.685507][ T5030] [ 43.687813][ T5030] The buggy address belongs to the physical page: [ 43.694286][ T5030] page:ffffea00008b3140 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x22cc5 [ 43.704501][ T5030] anon flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) [ 43.712459][ T5030] page_type: 0xffffffff() [ 43.716771][ T5030] raw: 00fff00000000200 ffff888012841280 0000000000000000 dead000000000001 [ 43.725337][ T5030] raw: 0000000000000000 0000000000660066 00000001ffffffff 0000000000000000 [ 43.733896][ T5030] page dumped because: kasan: bad access detected [ 43.740287][ T5030] page_owner tracks the page as allocated [ 43.745996][ T5030] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12c00(GFP_NOIO|__GFP_NOWARN|__GFP_NORETRY), pid 1, tgid 1 (swapper/0), ts 6838668391, free_ts 0 [ 43.762476][ T5030] post_alloc_hook+0x2d2/0x350 [ 43.767232][ T5030] get_page_from_freelist+0x10a9/0x31e0 [ 43.772765][ T5030] __alloc_pages+0x1d0/0x4a0 [ 43.777340][ T5030] alloc_page_interleave+0x1e/0x250 [ 43.782522][ T5030] alloc_pages+0x22a/0x270 [ 43.786939][ T5030] allocate_slab+0x24e/0x380 [ 43.791515][ T5030] ___slab_alloc+0x8bc/0x1570 [ 43.796174][ T5030] __slab_alloc.constprop.0+0x56/0xa0 [ 43.801533][ T5030] __kmem_cache_alloc_node+0x137/0x350 [ 43.806980][ T5030] kmalloc_trace+0x25/0xe0 [ 43.811384][ T5030] usb_control_msg+0xbd/0x4a0 [ 43.816051][ T5030] hub_suspend+0x8a0/0xa80 [ 43.820454][ T5030] usb_suspend_both+0x295/0x9b0 [ 43.825284][ T5030] usb_runtime_suspend+0x49/0x170 [ 43.830290][ T5030] __rpm_callback+0xc5/0x4c0 [ 43.834867][ T5030] rpm_callback+0x1da/0x220 [ 43.839442][ T5030] page_owner free stack trace missing [ 43.844784][ T5030] [ 43.847088][ T5030] Memory state around the buggy address: [ 43.852695][ T5030] ffff888022cc5880: fc fc fc 06 fc fc fc fc 06 fc fc fc fc 06 fc fc [ 43.860737][ T5030] ffff888022cc5900: fc fc fa fc fc fc fc 00 fc fc fc fc 00 fc fc fc [ 43.868867][ T5030] >ffff888022cc5980: fc 00 fc fc fc fc 00 fc fc fc fc 00 fc fc fc fc [ 43.876904][ T5030] ^ [ 43.884072][ T5030] ffff888022cc5a00: 00 fc fc fc fc fa fc fc fc fc fa fc fc fc fc 04 [ 43.892117][ T5030] ffff888022cc5a80: fc fc fc fc 04 fc fc fc fc 06 fc fc fc fc 04 fc [ 43.900242][ T5030] ================================================================== [ 43.909654][ T5030] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 43.916846][ T5030] CPU: 1 PID: 5030 Comm: udevd Not tainted 6.5.0-rc1-syzkaller-00276-g20edcec23f92 #0 [ 43.926463][ T5030] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023 [ 43.936505][ T5030] Call Trace: [ 43.939765][ T5030] [ 43.942681][ T5030] dump_stack_lvl+0xd9/0x1b0 [ 43.947256][ T5030] panic+0x6a4/0x750 [ 43.951140][ T5030] ? panic_smp_self_stop+0xa0/0xa0 [ 43.956238][ T5030] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 43.962378][ T5030] ? preempt_schedule_thunk+0x1a/0x30 [ 43.967832][ T5030] ? preempt_schedule_common+0x45/0xc0 [ 43.973277][ T5030] check_panic_on_warn+0xab/0xb0 [ 43.978378][ T5030] end_report+0x108/0x150 [ 43.982700][ T5030] kasan_report+0xea/0x110 [ 43.987104][ T5030] ? read_descriptors+0x27e/0x290 [ 43.992120][ T5030] ? read_descriptors+0x27e/0x290 [ 43.997134][ T5030] read_descriptors+0x27e/0x290 [ 44.001972][ T5030] sysfs_kf_bin_read+0x1a0/0x270 [ 44.006902][ T5030] ? urbnum_show+0x80/0x80 [ 44.011305][ T5030] ? kernfs_create_link+0x230/0x230 [ 44.016501][ T5030] kernfs_fop_read_iter+0x37c/0x680 [ 44.021692][ T5030] vfs_read+0x4e0/0x930 [ 44.025839][ T5030] ? kernel_read+0x1b0/0x1b0 [ 44.030420][ T5030] ? build_open_flags+0x690/0x690 [ 44.035432][ T5030] ? putname+0x101/0x140 [ 44.039669][ T5030] ? __fget_light+0x1fc/0x260 [ 44.044338][ T5030] ksys_read+0x12f/0x250 [ 44.048571][ T5030] ? vfs_write+0xe40/0xe40 [ 44.053004][ T5030] ? syscall_enter_from_user_mode+0x26/0x80 [ 44.059065][ T5030] do_syscall_64+0x38/0xb0 [ 44.063465][ T5030] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 44.069352][ T5030] RIP: 0033:0x7f0570b99b6a [ 44.073833][ T5030] Code: 00 3d 00 00 41 00 75 0d 50 48 8d 3d 2d 08 0a 00 e8 ea 7d 01 00 31 c0 e9 07 ff ff ff 64 8b 04 25 18 00 00 00 85 c0 75 1b 0f 05 <48> 3d 00 f0 ff ff 76 6c 48 8b 15 8f a2 0d 00 f7 d8 64 89 02 48 83 [ 44.093422][ T5030] RSP: 002b:00007ffff72ef498 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 44.101820][ T5030] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f0570b99b6a [ 44.109879][ T5030] RDX: 0000000000010011 RSI: 00007ffff72ef4c7 RDI: 0000000000000008 [ 44.118017][ T5030] RBP: 0000000000000008 R08: 0000000000000003 R09: b4d8a3e856476f50 [ 44.126062][ T5030] R10: 0000000000000000 R11: 0000000000000246 R12: 000055f8f5d42550 [ 44.134018][ T5030] R13: 00007ffff72ffba8 R14: 00007ffff73001f8 R15: 00007ffff72ef4c7 [ 44.141979][ T5030] [ 44.145976][ T5030] Kernel Offset: disabled [ 44.150278][ T5030] Rebooting in 86400 seconds..