ci starts bisection 2023-05-05 21:01:54.618226628 +0000 UTC m=+14739.112033867
bisecting cause commit starting from 3c4aa44343777844e425c28f1427127f3e55826f
building syzkaller on 518a39a63148f6aee9c82e5b6b1c20889a21f698
ensuring issue is reproducible on original commit 3c4aa44343777844e425c28f1427127f3e55826f

testing commit 3c4aa44343777844e425c28f1427127f3e55826f gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 570f04bd44c3f9ae64f1f3e888cdd2ab812a7b49d7a992431fdd6073e18eb673
all runs: crashed: INFO: task hung in usb_get_descriptor
testing release v6.3
testing commit 457391b0380335d5e9a5babdec90ac53928b23b4 gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 16b00a7585d98244d264e2e529873442a52eb465aa2fc84cb3886cfc2b461298
all runs: crashed: INFO: task hung in usb_get_descriptor
testing release v6.2
testing commit c9c3395d5e3dcc6daee66c6908354d47bf98cb0c gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: fe5839834091670d4ec11a1af3e3a08ccda74d1fe02d9ed9e8f997c516e76c53
all runs: crashed: INFO: task hung in usb_get_descriptor
testing release v6.1
testing commit 830b3c68c1fb1e9176028d02ef86f3cf76aa2476 gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: b0760b219c881be9bab35895c03746c921a83edd89acbb57ce4ff81ac2502957
all runs: crashed: INFO: task hung in usb_get_descriptor
testing release v6.0
testing commit 4fe89d07dcc2804c8b562f6c7896a45643d34b2f gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: b91ca67e33c4aab4cce4f16bdc865441044967371bdc8723b2ca2175a6df11db
all runs: crashed: INFO: task hung in usb_get_descriptor
testing release v5.19
testing commit 3d7cb6b04c3f3115719235cc6866b10326de34cd gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 9e67736a661348559b39a3201c33c7e52cf3714acd9fd300e4f2d594b8720f73
all runs: crashed: INFO: task hung in usb_get_descriptor
testing release v5.18
testing commit 4b0986a3613c92f4ec1bdc7f60ec66fea135991f gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 9203ef5593e8e3262d18310ded828a361d5d968a8881bfa9e9d636e088507c35
all runs: crashed: INFO: task hung in usb_get_descriptor
testing release v5.17
testing commit f443e374ae131c168a065ea1748feac6b2e76613 gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: be96b57b61ae7719efa3c6e53360e44543d5ae52431e5231a335fd9f8feeb7b7
all runs: crashed: INFO: task hung in usb_get_descriptor
testing release v5.16
testing commit df0cc57e057f18e44dac8e6c18aba47ab53202f9 gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: a2778a2b2bbc1ecddd02e594f15d8c0858f8650c731f996eab515e920e0aea4e
all runs: crashed: INFO: task hung in usb_get_descriptor
testing release v5.15
testing commit 8bb7eca972ad531c9b149c0a51ab43a417385813 gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: a190d954f8baa7f731f59022be9fd99ba761985e6147027ba09d2c1473a0bd72
all runs: crashed: INFO: task hung in usb_get_descriptor
testing release v5.14
testing commit 7d2a07b769330c34b4deabeed939325c77a7ec2f gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 04965f38feff136c53e7ea1d3c54331a2a48b39257d04aeda12da321cd1d44b9
all runs: crashed: INFO: task hung in usb_get_descriptor
testing release v5.13
testing commit 62fb9874f5da54fdb243003b386128037319b219 gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: ba9626dd8149cbbcfaf3b11a89fdcbda89170774c958f6b8b52f359a567531af
all runs: crashed: INFO: task hung in usb_get_descriptor
testing release v5.12
testing commit 9f4ad9e425a1d3b6a34617b8ea226d56a119a717 gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 4a4fbc685c41d6b0ac5fde8d3b297fe0f890160e8ff7c3eb28020bd5ac454b71
run #0: crashed: INFO: task hung in usb_get_descriptor
run #1: crashed: INFO: task hung in usb_get_descriptor
run #2: crashed: INFO: task hung in usb_get_descriptor
run #3: crashed: INFO: task hung in usb_get_descriptor
run #4: crashed: INFO: task hung in usb_get_descriptor
run #5: crashed: INFO: task hung in usb_get_descriptor
run #6: crashed: INFO: task hung in usb_get_descriptor
run #7: crashed: INFO: task hung in usb_get_descriptor
run #8: crashed: INFO: task hung in usb_get_descriptor
run #9: OK
testing release v5.11
testing commit f40ddce88593482919761f74910f42f4b84c004b gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: a436731bc28ba34acf72fc1125c4cdfc77cb4887919cfcebf6eca50e8b0429dc
all runs: crashed: INFO: task hung in usb_get_descriptor
testing release v5.10
testing commit 2c85ebc57b3e1817b6ce1a6b703928e113a90442 gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 322d10227d74ec5cbe368f8bbedcbe4eb7b939ca6b91635c2980db694574f044
all runs: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
testing release v5.9
testing commit bbf5c979011a099af5dc76498918ed7df445635b gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 95b33e148c66f443ec12fb51101aa9284b4b5671ff21058be69f92caa7c8ac0b
all runs: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
testing release v5.8
testing commit bcf876870b95592b52519ed4aafcf9d95999bc9c gcc
compiler: gcc (GCC) 8.4.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: fbb3bcff502e8cda18cbe2457fcd4bb7e79bccff8fa864f8c9c562d86fbd3be5
all runs: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
testing release v5.7
testing commit 3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162 gcc
compiler: gcc version 8.4.1 20210217 (GCC), GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 370ef5e24f522d94ac230cab75454b8c4723f3eb67a15bf7563abf21d643a84d
all runs: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
testing release v5.6
testing commit 7111951b8d4973bda27ff663f2cf18b663d15b48 gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 24610e0274d89de93982b62551e478ef388a5e160c4a6675a107f6c311a36770
all runs: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
testing release v5.5
testing commit d5226fa6dbae0569ee43ecfc08bdcd6770fc4755 gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 523c26aec4cd680ca2ea11b3462c73f115383468ccf4ef83e17961eafe87e433
all runs: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
testing release v5.4
testing commit 219d54332a09e8d8741c1e1982f5eae56099de85 gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: fadd11df12241cfb6143c122ee0c18f62a3d241fbeee9a7c6f1b25a0db17f730
all runs: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
testing release v5.3
testing commit 4d856f72c10ecb060868ed10ff1b1453943fc6c8 gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: c7ce690c36796cb30094afb54eeb567e44518fe4282cef0a064550eded60eb63
all runs: boot failed: BUG: spinlock bad magic in nf_connlabels_get
testing release v5.2
testing commit 0ecfebd2b52404ae0c54a878c872bb93363ada36 gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: f5550d0ab612e07f41d5e31568416260f552adde5348f9643fcd0f5c1020abe0
all runs: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
testing release v5.1
testing commit e93c9c99a629c61837d5a7fc2120cd2b6c70dbdd gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 8820a6e5203e0117a20e0d0bfb16c80faf3383bad359a94f45e26d2aff26c3dc
all runs: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
testing release v5.0
testing commit 1c163f4c7b3f621efff9b28a47abb36f7378d783 gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 320044c49a3d6aa31c9ab46e173ae668948ef6ad087ec5dfc58686c26159c2e4
all runs: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
testing release v4.20
testing commit 8fe28cb58bcb235034b64cbbb7550a8a43fd88be gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: f2c091028bd89949dcf51301e6976c96a5cb54c963780a6fd8919644c9b1949a
all runs: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
testing release v4.19
testing commit 84df9525b0c27f3ebc2ebb1864fa62a97fdedb7d gcc
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 54ccded0fa10b9dd1afe541b0dabe284b3ed5d1fbf0bc4348b9f608082789205
all runs: basic kernel testing failed: KASAN: use-after-free Read in task_active_pid_ns
revisions tested: 27, total time: 5h31m9.055059015s (build: 3h23m50.343988868s, test: 2h2m17.194460074s)
the crash already happened on the oldest tested release
commit msg: Linux 5.11
crash: INFO: task hung in usb_get_descriptor
INFO: task kworker/0:3:4775 blocked for more than 143 seconds.
      Not tainted 5.11.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:3     state:D stack:27056 pid: 4775 ppid:     2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
 context_switch kernel/sched/core.c:4327 [inline]
 __schedule+0x8de/0x2170 kernel/sched/core.c:5078
 schedule+0xcf/0x270 kernel/sched/core.c:5157
 usb_kill_urb.part.0+0x171/0x1e0 drivers/usb/core/urb.c:711
 usb_start_wait_urb+0x1f7/0x460 drivers/usb/core/message.c:64
 usb_internal_control_msg drivers/usb/core/message.c:102 [inline]
 usb_control_msg+0x306/0x460 drivers/usb/core/message.c:153
 usb_get_descriptor+0xb5/0x140 drivers/usb/core/message.c:790
 usb_get_device_descriptor+0x5e/0xb0 drivers/usb/core/message.c:1065
 hub_port_init+0x809/0x2710 drivers/usb/core/hub.c:4799
 hub_port_connect drivers/usb/core/hub.c:5155 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5363 [inline]
 port_event drivers/usb/core/hub.c:5509 [inline]
 hub_event+0xf4c/0x36a0 drivers/usb/core/hub.c:5591
 process_one_work+0x84c/0x13b0 kernel/workqueue.c:2275
 worker_thread+0x598/0xf80 kernel/workqueue.c:2421
 kthread+0x36f/0x450 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 PID: 1625 Comm: khungtaskd Not tainted 5.11.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x9a/0xcc lib/dump_stack.c:120
 nmi_cpu_backtrace.cold+0x30/0x99 lib/nmi_backtrace.c:105
 nmi_trigger_cpumask_backtrace+0x11f/0x170 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:209 [inline]
 watchdog+0x951/0xc20 kernel/hung_task.c:294
 kthread+0x36f/0x450 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:60 [inline]
NMI backtrace for cpu 0 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:103 [inline]
NMI backtrace for cpu 0 skipped: idling at acpi_safe_halt drivers/acpi/processor_idle.c:110 [inline]
NMI backtrace for cpu 0 skipped: idling at acpi_idle_do_entry+0x161/0x1c0 drivers/acpi/processor_idle.c:516