ci-upstream-kasan-gce/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci-upstream-kasan-gce/syz-executor203844193 <...> Warning: Permanently added '10.128.0.161' (ED25519) to the list of known hosts. execve("ci-upstream-kasan-gce/syz-executor203844193", ["ci-upstream-kasan-gce/syz-executor203844193"], 0x7ffefb765aa0 /* 10 vars */) = 0 brk(NULL) = 0x55556fb51000 brk(0x55556fb51d80) = 0x55556fb51d80 arch_prctl(ARCH_SET_FS, 0x55556fb51400) = 0 set_tid_address(0x55556fb516d0) = 5624 set_robust_list(0x55556fb516e0, 24) = 0 rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlinkat(AT_FDCWD, "/proc/self/exe", "/root/ci-upstream-kasan-gce/syz-executor203844193", 4096) = 49 getrandom("\xb5\x78\xe2\x50\x42\x0a\x51\x15", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556fb51d80 brk(0x55556fb72d80) = 0x55556fb72d80 brk(0x55556fb73000) = 0x55556fb73000 mprotect(0x7f8904558000, 20480, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 unshare(CLONE_NEWPID) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-kasan-gce/strace-static-x86_64: Process 5625 attached [pid 5625] set_robust_list(0x55556fb516e0, 24 [pid 5624] <... clone resumed>, child_tidptr=0x55556fb516d0) = 5625 [pid 5624] rt_sigprocmask(SIG_SETMASK, [] [pid 5625] <... set_robust_list resumed>) = 0 [pid 5624] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5625] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5625] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5625] getppid() = 0 [pid 5625] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5625] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5625] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5625] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5625] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5625] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5625] unshare(CLONE_NEWNS) = 0 [pid 5625] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5625] unshare(CLONE_NEWIPC) = 0 [pid 5625] unshare(CLONE_NEWCGROUP) = 0 [pid 5625] unshare(CLONE_NEWUTS) = 0 [pid 5625] unshare(CLONE_SYSVSEM) = 0 [pid 5625] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5625] write(3, "16777216", 8) = 8 [pid 5625] close(3) = 0 [pid 5625] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5625] write(3, "536870912", 9) = 9 [pid 5625] close(3) = 0 [pid 5625] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5625] write(3, "1024", 4) = 4 [pid 5625] close(3) = 0 [pid 5625] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5625] write(3, "8192", 4) = 4 [pid 5625] close(3) = 0 [pid 5625] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5625] write(3, "1024", 4) = 4 [pid 5625] close(3) = 0 [pid 5625] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5625] write(3, "1024", 4) = 4 [pid 5625] close(3) = 0 [pid 5625] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5625] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5625] close(3) = 0 [pid 5625] getpid() = 1 [pid 5625] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 84.806606][ T5344] dump_stack_lvl+0xe8/0x150 [ 84.806622][ T5344] print_address_description+0x55/0x1e0 [ 84.806636][ T5344] ? hid_dump_input+0xcb/0xd0 [ 84.806646][ T5344] print_report+0x58/0x70 [ 84.806658][ T5344] kasan_report+0x117/0x150 [ 84.806675][ T5344] ? hid_dump_input+0xcb/0xd0 [ 84.806686][ T5344] hid_dump_input+0xcb/0xd0 [ 84.806696][ T5344] hid_set_field+0xd3/0x440 [ 84.806709][ T5344] picolcd_fb_deferred_io+0x6d5/0x1880 [ 84.806727][ T5344] ? __pfx_picolcd_fb_deferred_io+0x10/0x10 [ 84.806740][ T5344] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 84.806752][ T5344] ? process_scheduled_works+0xa20/0x14e0 [ 84.806764][ T5344] ? process_scheduled_works+0xa20/0x14e0 [ 84.806776][ T5344] fb_deferred_io_work+0x1cf/0x310 [ 84.806789][ T5344] ? process_scheduled_works+0xa20/0x14e0 [ 84.806800][ T5344] process_scheduled_works+0xa8e/0x14e0 [ 84.806817][ T5344] ? __pfx_process_scheduled_works+0x10/0x10 [ 84.806829][ T5344] ? assign_work+0x3cf/0x5d0 [ 84.806840][ T5344] worker_thread+0xa47/0xfb0 [ 84.806855][ T5344] ? __kthread_parkme+0x71/0x1f0 [ 84.806869][ T5344] kthread+0x388/0x470 [ 84.806883][ T5344] ? __pfx_worker_thread+0x10/0x10 [ 84.806894][ T5344] ? __pfx_kthread+0x10/0x10 [ 84.806908][ T5344] ret_from_fork+0x514/0xb70 [ 84.806922][ T5344] ? __pfx_ret_from_fork+0x10/0x10 [ 84.806936][ T5344] ? __switch_to+0xc89/0x1420 [ 84.806949][ T5344] ? __pfx_kthread+0x10/0x10 [ 84.806963][ T5344] ret_from_fork_asm+0x1a/0x30 [ 84.806981][ T5344] [ 84.806985][ T5344] [ 84.806989][ T5344] Allocated by task 10: [ 84.806994][ T5344] kasan_save_track+0x3e/0x80 [ 84.807008][ T5344] __kasan_kmalloc+0x93/0xb0 [ 84.807021][ T5344] __kvmalloc_node_noprof+0x53f/0x860 [ 84.807034][ T5344] hid_add_field+0x70a/0x1840 [ 84.807047][ T5344] hid_parser_main+0x2e1/0xd50 [ 84.807060][ T5344] hid_open_report+0x884/0xf00 [ 84.807071][ T5344] picolcd_probe+0x177/0x16c0 [ 84.807081][ T5344] hid_device_probe+0x42c/0x7c0 [ 84.807093][ T5344] really_probe+0x254/0xae0 [ 84.807104][ T5344] __driver_probe_device+0x1e8/0x360 [ 84.807113][ T5344] driver_probe_device+0x4f/0x240 [ 84.807131][ T5344] __device_attach_driver+0x270/0x410 [ 84.807141][ T5344] bus_for_each_drv+0x258/0x2f0 [ 84.807154][ T5344] __device_attach+0x2c4/0x450 [ 84.807163][ T5344] device_initial_probe+0xa1/0xd0 [ 84.807172][ T5344] bus_probe_device+0x12a/0x220 [ 84.807184][ T5344] device_add+0x7d7/0xb80 [ 84.807198][ T5344] hid_add_device+0x272/0x3e0 [ 84.807210][ T5344] usbhid_probe+0x9d4/0xde0 [ 84.807222][ T5344] usb_probe_interface+0x653/0xc60 [ 84.807237][ T5344] really_probe+0x254/0xae0 [ 84.807247][ T5344] __driver_probe_device+0x1e8/0x360 [ 84.807256][ T5344] driver_probe_device+0x4f/0x240 [ 84.807266][ T5344] __device_attach_driver+0x270/0x410 [ 84.807276][ T5344] bus_for_each_drv+0x258/0x2f0 [ 84.807289][ T5344] __device_attach+0x2c4/0x450 [ 84.807297][ T5344] device_initial_probe+0xa1/0xd0 [ 84.807307][ T5344] bus_probe_device+0x12a/0x220 [ 84.807319][ T5344] device_add+0x7d7/0xb80 [ 84.807333][ T5344] usb_set_configuration+0x1ad8/0x2180 [ 84.807346][ T5344] usb_generic_driver_probe+0x8d/0x150 [ 84.807360][ T5344] usb_probe_device+0x1c3/0x3b0 [ 84.807374][ T5344] really_probe+0x254/0xae0 [ 84.807383][ T5344] __driver_probe_device+0x1e8/0x360 [ 84.807393][ T5344] driver_probe_device+0x4f/0x240 [ 84.807403][ T5344] __device_attach_driver+0x270/0x410 [ 84.807413][ T5344] bus_for_each_drv+0x258/0x2f0 [ 84.807425][ T5344] __device_attach+0x2c4/0x450 [ 84.807434][ T5344] device_initial_probe+0xa1/0xd0 [ 84.807443][ T5344] bus_probe_device+0x12a/0x220 [ 84.807455][ T5344] device_add+0x7d7/0xb80 [ 84.807469][ T5344] usb_new_device+0x99d/0x1620 [ 84.807480][ T5344] hub_event+0x28e8/0x4d30 [ 84.807492][ T5344] process_scheduled_works+0xa8e/0x14e0 [ 84.807502][ T5344] worker_thread+0xa47/0xfb0 [ 84.807513][ T5344] kthread+0x388/0x470 [ 84.807525][ T5344] ret_from_fork+0x514/0xb70 [ 84.807538][ T5344] ret_from_fork_asm+0x1a/0x30 [ 84.807552][ T5344] [ 84.807555][ T5344] The buggy address belongs to the object at ffff88801d727100 [ 84.807555][ T5344] which belongs to the cache kmalloc-192 of size 192 [ 84.807565][ T5344] The buggy address is located 16 bytes to the right of [ 84.807565][ T5344] allocated 176-byte region [ffff88801d727100, ffff88801d7271b0) [ 84.807577][ T5344] [ 84.807580][ T5344] The buggy address belongs to the physical page: [ 84.807587][ T5344] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1d727 [ 84.807598][ T5344] flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) [ 84.807609][ T5344] page_type: f5(slab) [ 84.807620][ T5344] raw: 00fff00000000000 ffff88813fe3e3c0 dead000000000100 dead000000000122 [ 84.807630][ T5344] raw: 0000000000000000 0000000800100010 00000000f5000000 0000000000000000 [ 84.807636][ T5344] page dumped because: kasan: bad access detected [ 84.807641][ T5344] page_owner tracks the page as allocated [ 84.807646][ T5344] page last allocated via order 0, migratetype Unmovable, gfp_mask 0xd2cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 5170521555, free_ts 0 [ 84.807665][ T5344] post_alloc_hook+0x1f9/0x250 [ 84.807676][ T5344] get_page_from_freelist+0x21fa/0x2270 [ 84.807690][ T5344] __alloc_frozen_pages_noprof+0x18d/0x380 [ 84.807703][ T5344] allocate_slab+0x79/0x5e0 [ 84.807718][ T5344] refill_objects+0x2d5/0x350 [ 84.807727][ T5344] __pcs_replace_empty_main+0x2bf/0x6b0 [ 84.807741][ T5344] __kmalloc_cache_noprof+0x3a7/0x660 [ 84.807753][ T5344] call_usermodehelper_setup+0x8e/0x270 [ 84.807763][ T5344] kobject_uevent_env+0x662/0x9e0 [ 84.807777][ T5344] kset_register+0x1c0/0x230 [ 84.807789][ T5344] class_register+0x22c/0x3a0 [ 84.807800][ T5344] cpuid_init+0x35/0xc0 [ 84.807818][ T5344] do_one_initcall+0x250/0x870 [ 84.807831][ T5344] do_initcall_level+0x10a/0x1a0 [ 84.807844][ T5344] do_initcalls+0x59/0xa0 [ 84.807855][ T5344] kernel_init_freeable+0x29d/0x3e0 [ 84.807867][ T5344] page_owner free stack trace missing [ 84.807871][ T5344] [ 84.807874][ T5344] Memory state around the buggy address: [ 84.807880][ T5344] ffff88801d727080: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc [ 84.807888][ T5344] ffff88801d727100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 84.807895][ T5344] >ffff88801d727180: 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc [ 84.807900][ T5344] ^ [ 84.807907][ T5344] ffff88801d727200: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 84.807914][ T5344] ffff88801d727280: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 84.807919][ T5344] ================================================================== [ 84.807926][ T5344] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 84.807934][ T5344] CPU: 0 UID: 0 PID: 5344 Comm: kworker/0:3 Not tainted syzkaller #0 PREEMPT(full) [ 84.807946][ T5344] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 84.807953][ T5344] Workqueue: events fb_deferred_io_work [ 84.807966][ T5344] Call Trace: [ 84.807971][ T5344] [ 84.807975][ T5344] vpanic+0x56c/0xa60 [ 84.807991][ T5344] ? __pfx_vpanic+0x10/0x10 [ 84.808008][ T5344] panic+0xc5/0xd0 [ 84.808022][ T5344] ? __pfx_panic+0x10/0x10 [ 84.808036][ T5344] ? hid_dump_input+0xcb/0xd0 [ 84.808046][ T5344] ? rcu_is_watching+0x15/0xb0 [ 84.808063][ T5344] ? hid_dump_input+0xcb/0xd0 [ 84.808073][ T5344] ? hid_dump_input+0xcb/0xd0 [ 84.808083][ T5344] check_panic_on_warn+0x89/0xb0 [ 84.808098][ T5344] ? hid_dump_input+0xcb/0xd0 [ 84.808108][ T5344] end_report+0x73/0x170 [ 84.808122][ T5344] ? hid_dump_input+0xcb/0xd0 [ 84.808138][ T5344] kasan_report+0x128/0x150 [ 84.808158][ T5344] ? hid_dump_input+0xcb/0xd0 [ 84.808170][ T5344] hid_dump_input+0xcb/0xd0 [ 84.808180][ T5344] hid_set_field+0xd3/0x440 [ 84.808193][ T5344] picolcd_fb_deferred_io+0x6d5/0x1880 [ 84.808211][ T5344] ? __pfx_picolcd_fb_deferred_io+0x10/0x10 [ 84.808224][ T5344] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 84.808236][ T5344] ? process_scheduled_works+0xa20/0x14e0 [ 84.808248][ T5344] ? process_scheduled_works+0xa20/0x14e0 [ 84.808259][ T5344] fb_deferred_io_work+0x1cf/0x310 [ 84.808273][ T5344] ? process_scheduled_works+0xa20/0x14e0 [ 84.808284][ T5344] process_scheduled_works+0xa8e/0x14e0 [ 84.808301][ T5344] ? __pfx_process_scheduled_works+0x10/0x10 [ 84.808314][ T5344] ? assign_work+0x3cf/0x5d0 [ 84.808326][ T5344] worker_thread+0xa47/0xfb0 [ 84.808340][ T5344] ? __kthread_parkme+0x71/0x1f0 [ 84.808355][ T5344] kthread+0x388/0x470 [ 84.808369][ T5344] ? __pfx_worker_thread+0x10/0x10 [ 84.808380][ T5344] ? __pfx_kthread+0x10/0x10 [ 84.808394][ T5344] ret_from_fork+0x514/0xb70 [ 84.808409][ T5344] ? __pfx_ret_from_fork+0x10/0x10 [ 84.808423][ T5344] ? __switch_to+0xc89/0x1420 [ 84.808435][ T5344] ? __pfx_kthread+0x10/0x10 [ 84.808450][ T5344] ret_from_fork_asm+0x1a/0x30 [ 84.808468][ T5344] [ 84.808646][ T5344] Kernel Offset: disabled