Extracting prog: 3m48.331569289s
Minimizing prog: 7m57.145982071s
Simplifying prog options: 0s
Extracting C: 1m41.858086s
Simplifying C: 11m56.164363248s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x8b, &(0x7f0000001e00)={{0x12, 0x1, 0x0, 0xdd, 0x59, 0xa0, 0x8, 0xbaf, 0xf2, 0x640e, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x79, 0x1, 0x0, 0x11, 0x0, 0x0, [{{0x9, 0x4, 0x0, 0x0, 0x7, 0x88, 0x21, 0xb0, 0x0, [@hid_hid={0x9}], [{{0x9, 0x5, 0x6, 0x10, 0x3ff, 0x6, 0x0, 0x7, [@generic={0x2, 0x5}]}}, {{0x9, 0x5, 0xd, 0x1, 0x400, 0x2, 0x1f, 0x8, [@generic={0x2, 0xf}]}}, {{0x9, 0x5, 0x3, 0x8, 0x3ff, 0x1, 0x0, 0x9, [@generic={0x2, 0xd}]}}, {{0x9, 0x5, 0x8, 0x0, 0x3ff, 0x33, 0x1, 0x0, [@uac_iso={0x7, 0x25, 0x1, 0x81}, @generic={0x2}]}}, {{0x9, 0x5, 0x80, 0x0, 0x10, 0x0, 0xff, 0x85, [@uac_iso={0x7, 0x25, 0x1, 0x7, 0x9}, @uac_iso={0x7, 0x25, 0x1, 0x0, 0xff, 0x4}]}}, {{0x9, 0x5, 0x0, 0x10, 0x0, 0x0, 0x7, 0x7c, [@generic={0x2, 0x1}]}}, {{0x9, 0x5, 0x0, 0x18, 0x0, 0x31, 0x5}}]}}]}}]}}, 0x0)

program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x8b, &(0x7f0000001e00)={{0x12, 0x1, 0x0, 0xdd, 0x59, 0xa0, 0x8, 0xbaf, 0xf2, 0x640e, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x79, 0x1, 0x0, 0x11, 0x0, 0x0, [{{0x9, 0x4, 0x0, 0x0, 0x7, 0x88, 0x21, 0xb0, 0x0, [@hid_hid={0x9}], [{{0x9, 0x5, 0x6, 0x10, 0x3ff, 0x6, 0x0, 0x7, [@generic={0x2, 0x5}]}}, {{0x9, 0x5, 0xd, 0x1, 0x400, 0x2, 0x1f, 0x8, [@generic={0x2, 0xf}]}}, {{0x9, 0x5, 0x3, 0x8, 0x3ff, 0x1, 0x0, 0x9, [@generic={0x2, 0xd}]}}, {{0x9, 0x5, 0x8, 0x0, 0x3ff, 0x33, 0x1, 0x0, [@uac_iso={0x7, 0x25, 0x1, 0x81}, @generic={0x2}]}}, {{0x9, 0x5, 0x80, 0x0, 0x10, 0x0, 0xff, 0x85, [@uac_iso={0x7, 0x25, 0x1, 0x7, 0x9}, @uac_iso={0x7, 0x25, 0x1, 0x0, 0xff, 0x4}]}}, {{0x9, 0x5, 0x0, 0x10, 0x0, 0x0, 0x7, 0x7c, [@generic={0x2, 0x1}]}}, {{0x9, 0x5, 0x0, 0x18, 0x0, 0x31, 0x5}}]}}]}}]}}, 0x0)

program crashed: WARNING in firmware_fallback_sysfs
single: successfully extracted reproducer
found reproducer with 1 syscalls
minimizing guilty program
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x0, 0x0, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect
detailed listing:
executing program 0:
syz_usb_connect(0x0, 0x2d, &(0x7f0000001e00)={{0x12, 0x1, 0x0, 0xdd, 0x59, 0xa0, 0x8, 0xbaf, 0xf2, 0x640e, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x1b, 0x1, 0x0, 0x11, 0x0, 0x0, [{{0x9, 0x4, 0x0, 0x0, 0x0, 0x88, 0x21, 0xb0, 0x0, [@hid_hid={0x9}]}}]}}]}}, 0x0)

program crashed: WARNING in firmware_fallback_sysfs
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect
program crashed: WARNING in firmware_fallback_sysfs
simplifying C reproducer
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect
program crashed: WARNING in firmware_fallback_sysfs
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect
program crashed: WARNING in firmware_fallback_sysfs
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect
program crashed: WARNING in firmware_fallback_sysfs
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect
program crashed: WARNING in firmware_fallback_sysfs
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect
program crashed: WARNING in firmware_fallback_sysfs
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect
program crashed: WARNING in firmware_fallback_sysfs
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_usb_connect
program crashed: WARNING in firmware_fallback_sysfs
reproducing took 25m23.500040638s
repro crashed as (corrupted=false):
sysfs group 'power' not found for kobject 'ueagle-atm!eagleI.fw'
WARNING: CPU: 0 PID: 1108 at fs/sysfs/group.c:281 sysfs_remove_group+0x174/0x290 fs/sysfs/group.c:279
Modules linked in:
CPU: 0 PID: 1108 Comm: kworker/0:2 Not tainted 5.15.184-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: events request_firmware_work_func
RIP: 0010:sysfs_remove_group+0x174/0x290 fs/sysfs/group.c:279
Code: 48 8b 1b 4c 89 f8 48 c1 e8 03 80 3c 28 00 74 08 4c 89 ff e8 0e d4 d0 ff 49 8b 17 48 c7 c7 40 a0 19 8a 48 89 de e8 dc 04 aa 07 <0f> 0b 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 16 5e 8b ff
RSP: 0018:ffffc900048ef9a0 EFLAGS: 00010246
RAX: 339745ece2f8f200 RBX: ffffffff8a7bb3c0 RCX: ffff8880210f9dc0
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: dffffc0000000000 R09: ffffed1017204f24
R10: ffffed1017204f24 R11: 1ffff11017204f23 R12: 1ffffffff14f767c
R13: dffffc0000000000 R14: ffff88801a3bccb0 R15: ffff888141fc3008
FS:  0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555881f6ca8 CR3: 000000000be8e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 device_del+0x2ae/0xa70 drivers/base/core.c:3577
 fw_load_sysfs_fallback drivers/base/firmware_loader/fallback.c:545 [inline]
 fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:583 [inline]
 firmware_fallback_sysfs+0x8d1/0xbc0 drivers/base/firmware_loader/fallback.c:659
 _request_firmware+0xc86/0x12b0 drivers/base/firmware_loader/main.c:876
 request_firmware_work_func+0xac/0x1b0 drivers/base/firmware_loader/main.c:1127
 process_one_work+0x863/0x1000 kernel/workqueue.c:2310
 worker_thread+0xaa8/0x12a0 kernel/workqueue.c:2457
 kthread+0x436/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>

final repro crashed as (corrupted=false):
sysfs group 'power' not found for kobject 'ueagle-atm!eagleI.fw'
WARNING: CPU: 0 PID: 1108 at fs/sysfs/group.c:281 sysfs_remove_group+0x174/0x290 fs/sysfs/group.c:279
Modules linked in:
CPU: 0 PID: 1108 Comm: kworker/0:2 Not tainted 5.15.184-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: events request_firmware_work_func
RIP: 0010:sysfs_remove_group+0x174/0x290 fs/sysfs/group.c:279
Code: 48 8b 1b 4c 89 f8 48 c1 e8 03 80 3c 28 00 74 08 4c 89 ff e8 0e d4 d0 ff 49 8b 17 48 c7 c7 40 a0 19 8a 48 89 de e8 dc 04 aa 07 <0f> 0b 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 16 5e 8b ff
RSP: 0018:ffffc900048ef9a0 EFLAGS: 00010246
RAX: 339745ece2f8f200 RBX: ffffffff8a7bb3c0 RCX: ffff8880210f9dc0
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: dffffc0000000000 R09: ffffed1017204f24
R10: ffffed1017204f24 R11: 1ffff11017204f23 R12: 1ffffffff14f767c
R13: dffffc0000000000 R14: ffff88801a3bccb0 R15: ffff888141fc3008
FS:  0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555881f6ca8 CR3: 000000000be8e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 device_del+0x2ae/0xa70 drivers/base/core.c:3577
 fw_load_sysfs_fallback drivers/base/firmware_loader/fallback.c:545 [inline]
 fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:583 [inline]
 firmware_fallback_sysfs+0x8d1/0xbc0 drivers/base/firmware_loader/fallback.c:659
 _request_firmware+0xc86/0x12b0 drivers/base/firmware_loader/main.c:876
 request_firmware_work_func+0xac/0x1b0 drivers/base/firmware_loader/main.c:1127
 process_one_work+0x863/0x1000 kernel/workqueue.c:2310
 worker_thread+0xaa8/0x12a0 kernel/workqueue.c:2457
 kthread+0x436/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>