Warning: Permanently added '10.128.0.91' (ED25519) to the list of known hosts. executing program executing program executing program executing program executing program [ 38.028741][ T29] audit: type=1400 audit(1731286639.475:80): avc: denied { execmem } for pid=2961 comm="syz-executor201" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 38.063801][ T29] audit: type=1400 audit(1731286639.485:81): avc: denied { read write } for pid=2963 comm="syz-executor201" name="raw-gadget" dev="devtmpfs" ino=236 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 38.087802][ T29] audit: type=1400 audit(1731286639.485:82): avc: denied { open } for pid=2963 comm="syz-executor201" path="/dev/raw-gadget" dev="devtmpfs" ino=236 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 38.111559][ T29] audit: type=1400 audit(1731286639.485:83): avc: denied { ioctl } for pid=2963 comm="syz-executor201" path="/dev/raw-gadget" dev="devtmpfs" ino=236 ioctlcmd=0x5500 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 38.280629][ T36] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 38.300484][ T1176] usb 2-1: new high-speed USB device number 2 using dummy_hcd [ 38.310882][ T9] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 38.319561][ T2824] usb 3-1: new high-speed USB device number 2 using dummy_hcd [ 38.370498][ T8] usb 4-1: new high-speed USB device number 2 using dummy_hcd [ 38.432350][ T36] usb 1-1: config 0 interface 0 altsetting 0 has an invalid descriptor for endpoint zero, skipping [ 38.443173][ T36] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x82 has an invalid bInterval 0, changing to 7 [ 38.454123][ T36] usb 1-1: config 0 interface 0 altsetting 0 has 2 endpoint descriptors, different from the interface descriptor's value: 1 [ 38.468800][ T1176] usb 2-1: config 0 interface 0 altsetting 0 has an invalid descriptor for endpoint zero, skipping [ 38.479592][ T1176] usb 2-1: config 0 interface 0 altsetting 0 endpoint 0x82 has an invalid bInterval 0, changing to 7 [ 38.482859][ T9] usb 5-1: config 0 interface 0 altsetting 0 has an invalid descriptor for endpoint zero, skipping [ 38.490509][ T1176] usb 2-1: config 0 interface 0 altsetting 0 has 2 endpoint descriptors, different from the interface descriptor's value: 1 [ 38.491831][ T36] usb 1-1: New USB device found, idVendor=2304, idProduct=021a, bcdDevice=18.29 [ 38.501344][ T9] usb 5-1: config 0 interface 0 altsetting 0 endpoint 0x82 has an invalid bInterval 0, changing to 7 [ 38.514304][ T36] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 38.523303][ T9] usb 5-1: config 0 interface 0 altsetting 0 has 2 endpoint descriptors, different from the interface descriptor's value: 1 [ 38.523419][ T2824] usb 3-1: config 0 interface 0 altsetting 0 has an invalid descriptor for endpoint zero, skipping [ 38.534239][ T36] usb 1-1: Product: syz [ 38.534260][ T36] usb 1-1: Manufacturer: syz [ 38.534279][ T36] usb 1-1: SerialNumber: syz [ 38.542274][ T2824] usb 3-1: config 0 interface 0 altsetting 0 endpoint 0x82 has an invalid bInterval 0, changing to 7 [ 38.560530][ T1176] usb 2-1: New USB device found, idVendor=2304, idProduct=021a, bcdDevice=18.29 [ 38.565906][ T2824] usb 3-1: config 0 interface 0 altsetting 0 has 2 endpoint descriptors, different from the interface descriptor's value: 1 [ 38.570055][ T1176] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 38.577634][ T9] usb 5-1: New USB device found, idVendor=2304, idProduct=021a, bcdDevice=18.29 [ 38.579223][ T1176] usb 2-1: Product: syz [ 38.590148][ T9] usb 5-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 38.599187][ T1176] usb 2-1: Manufacturer: syz [ 38.599209][ T1176] usb 2-1: SerialNumber: syz [ 38.601011][ T36] usb 1-1: config 0 descriptor?? [ 38.612101][ T9] usb 5-1: Product: syz [ 38.612122][ T9] usb 5-1: Manufacturer: syz [ 38.612140][ T9] usb 5-1: SerialNumber: syz [ 38.627115][ T36] em28xx 1-1:0.0: New device syz syz @ 480 Mbps (2304:021a, interface 0, class 0) [ 38.630765][ T2824] usb 3-1: New USB device found, idVendor=2304, idProduct=021a, bcdDevice=18.29 [ 38.633514][ T36] em28xx 1-1:0.0: Video interface 0 found: isoc [ 38.641418][ T2824] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 38.655701][ T1176] usb 2-1: config 0 descriptor?? [ 38.659790][ T2824] usb 3-1: Product: syz [ 38.659812][ T2824] usb 3-1: Manufacturer: syz [ 38.679990][ T1176] em28xx 2-1:0.0: New device syz syz @ 480 Mbps (2304:021a, interface 0, class 0) [ 38.687569][ T2824] usb 3-1: SerialNumber: syz [ 38.693872][ T1176] em28xx 2-1:0.0: Video interface 0 found: isoc [ 38.701903][ T8] usb 4-1: config 0 interface 0 altsetting 0 has an invalid descriptor for endpoint zero, skipping [ 38.746680][ T8] usb 4-1: config 0 interface 0 altsetting 0 endpoint 0x82 has an invalid bInterval 0, changing to 7 [ 38.757599][ T8] usb 4-1: config 0 interface 0 altsetting 0 has 2 endpoint descriptors, different from the interface descriptor's value: 1 [ 38.772982][ T9] usb 5-1: config 0 descriptor?? [ 38.779311][ T2824] usb 3-1: config 0 descriptor?? [ 38.787017][ T9] em28xx 5-1:0.0: New device syz syz @ 480 Mbps (2304:021a, interface 0, class 0) [ 38.796315][ T9] em28xx 5-1:0.0: Video interface 0 found: isoc [ 38.805147][ T2824] em28xx 3-1:0.0: New device syz syz @ 480 Mbps (2304:021a, interface 0, class 0) [ 38.814464][ T2824] em28xx 3-1:0.0: Video interface 0 found: isoc [ 38.822947][ T8] usb 4-1: New USB device found, idVendor=2304, idProduct=021a, bcdDevice=18.29 executing program executing program [ 38.832103][ T8] usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 38.840169][ T8] usb 4-1: Product: syz [ 38.844489][ T8] usb 4-1: Manufacturer: syz [ 38.849201][ T8] usb 4-1: SerialNumber: syz [ 38.857812][ T8] usb 4-1: config 0 descriptor?? [ 38.868599][ T8] em28xx 4-1:0.0: New device syz syz @ 480 Mbps (2304:021a, interface 0, class 0) [ 38.878000][ T8] em28xx 4-1:0.0: Video interface 0 found: isoc [ 38.910827][ T36] em28xx 1-1:0.0: unknown em28xx chip ID (0) [ 38.931207][ T1176] em28xx 2-1:0.0: unknown em28xx chip ID (0) executing program executing program [ 38.973526][ T36] em28xx 1-1:0.0: reading from i2c device at 0xa0 failed (error=-5) [ 38.981816][ T36] em28xx 1-1:0.0: board has no eeprom [ 38.993560][ T1176] em28xx 2-1:0.0: reading from i2c device at 0xa0 failed (error=-5) [ 39.001739][ T1176] em28xx 2-1:0.0: board has no eeprom [ 39.050796][ T36] em28xx 1-1:0.0: Identified as Pinnacle Dazzle DVC 90/100/101/107 / Kaiser Baas Video to DVD maker / Kworld DVD Maker 2 / Plextor ConvertX PX-AV100U (card=9) [ 39.051160][ T2824] em28xx 3-1:0.0: unknown em28xx chip ID (0) [ 39.066826][ T36] em28xx 1-1:0.0: analog set to isoc mode. [ 39.067382][ T2975] em28xx 1-1:0.0: Registering V4L2 extension [ 39.074346][ T9] em28xx 5-1:0.0: unknown em28xx chip ID (0) executing program [ 39.083449][ T1176] em28xx 2-1:0.0: Identified as Pinnacle Dazzle DVC 90/100/101/107 / Kaiser Baas Video to DVD maker / Kworld DVD Maker 2 / Plextor ConvertX PX-AV100U (card=9) [ 39.106981][ T1176] em28xx 2-1:0.0: analog set to isoc mode. [ 39.114106][ T2975] em28xx 1-1:0.0: reading from i2c device at 0x4a failed (error=-5) [ 39.123555][ T2975] em28xx 1-1:0.0: reading from i2c device at 0x48 failed (error=-5) [ 39.134949][ T36] usb 1-1: USB disconnect, device number 2 [ 39.141920][ T36] em28xx 1-1:0.0: Disconnecting em28xx [ 39.147580][ T2975] em28xx 1-1:0.0: Config register raw data: 0xffffffed [ 39.152590][ T8] em28xx 4-1:0.0: unknown em28xx chip ID (0) [ 39.154607][ T2975] em28xx 1-1:0.0: AC97 chip type couldn't be determined [ 39.162653][ T9] em28xx 5-1:0.0: reading from i2c device at 0xa0 failed (error=-5) [ 39.167486][ T2975] em28xx 1-1:0.0: No AC97 audio processor [ 39.181460][ T9] em28xx 5-1:0.0: board has no eeprom [ 39.182378][ T1176] usb 2-1: USB disconnect, device number 2 [ 39.187286][ T2824] em28xx 3-1:0.0: reading from i2c device at 0xa0 failed (error=-5) [ 39.197387][ T2975] usb 1-1: Decoder not found [ 39.201106][ T2824] em28xx 3-1:0.0: board has no eeprom [ 39.205588][ T2975] em28xx 1-1:0.0: failed to create media graph [ 39.218048][ T2975] em28xx 1-1:0.0: V4L2 device video0 deregistered [ 39.225458][ T1176] em28xx 2-1:0.0: Disconnecting em28xx [ 39.233042][ T2975] em28xx 1-1:0.0: Remote control support is not available for this card. [ 39.242103][ T2987] em28xx 2-1:0.0: Registering V4L2 extension [ 39.263389][ T2987] em28xx 2-1:0.0: Config register raw data: 0xffffffed [ 39.270273][ T2987] em28xx 2-1:0.0: AC97 chip type couldn't be determined [ 39.277312][ T2987] em28xx 2-1:0.0: No AC97 audio processor [ 39.280539][ T9] em28xx 5-1:0.0: Identified as Pinnacle Dazzle DVC 90/100/101/107 / Kaiser Baas Video to DVD maker / Kworld DVD Maker 2 / Plextor ConvertX PX-AV100U (card=9) [ 39.285355][ T2987] usb 2-1: Decoder not found [ 39.299154][ T9] em28xx 5-1:0.0: analog set to isoc mode. [ 39.309852][ T2987] em28xx 2-1:0.0: failed to create media graph [ 39.312081][ T8] em28xx 4-1:0.0: reading from i2c device at 0xa0 failed (error=-5) [ 39.317176][ T2987] em28xx 2-1:0.0: V4L2 device video0 deregistered [ 39.324027][ T8] em28xx 4-1:0.0: board has no eeprom [ 39.331806][ T2987] em28xx 2-1:0.0: Remote control support is not available for this card. [ 39.337594][ T2824] em28xx 3-1:0.0: Identified as Pinnacle Dazzle DVC 90/100/101/107 / Kaiser Baas Video to DVD maker / Kworld DVD Maker 2 / Plextor ConvertX PX-AV100U (card=9) [ 39.344418][ T36] em28xx 1-1:0.0: Closing input extension [ 39.360281][ T2824] em28xx 3-1:0.0: analog set to isoc mode. [ 39.372912][ T2978] em28xx 5-1:0.0: Registering V4L2 extension [ 39.391755][ T36] em28xx 1-1:0.0: Freeing device [ 39.395296][ T9] usb 5-1: USB disconnect, device number 2 [ 39.405275][ T2824] usb 3-1: USB disconnect, device number 2 [ 39.413622][ T9] em28xx 5-1:0.0: Disconnecting em28xx [ 39.420470][ T8] em28xx 4-1:0.0: Identified as Pinnacle Dazzle DVC 90/100/101/107 / Kaiser Baas Video to DVD maker / Kworld DVD Maker 2 / Plextor ConvertX PX-AV100U (card=9) [ 39.436514][ T8] em28xx 4-1:0.0: analog set to isoc mode. [ 39.443986][ T2824] em28xx 3-1:0.0: Disconnecting em28xx [ 39.453360][ T2978] em28xx 5-1:0.0: Config register raw data: 0xffffffed [ 39.460283][ T2978] em28xx 5-1:0.0: AC97 chip type couldn't be determined [ 39.467517][ T2978] em28xx 5-1:0.0: No AC97 audio processor [ 39.478801][ T8] usb 4-1: USB disconnect, device number 2 [ 39.487191][ T8] em28xx 4-1:0.0: Disconnecting em28xx [ 39.494550][ T2978] usb 5-1: Decoder not found [ 39.499221][ T2978] em28xx 5-1:0.0: failed to create media graph [ 39.505971][ T2978] em28xx 5-1:0.0: V4L2 device video0 deregistered [ 39.513984][ T2978] em28xx 5-1:0.0: Remote control support is not available for this card. [ 39.514158][ T2993] ================================================================== [ 39.522587][ T2973] em28xx 3-1:0.0: Registering V4L2 extension [ 39.530461][ T2993] BUG: KASAN: slab-use-after-free in v4l2_fh_init+0x27d/0x2c0 [ 39.543950][ T2993] Read of size 8 at addr ffff88812298c730 by task v4l_id/2993 [ 39.551437][ T2993] [ 39.553802][ T2993] CPU: 1 UID: 0 PID: 2993 Comm: v4l_id Not tainted 6.12.0-rc6-syzkaller-00106-gde9df030ccb5 #0 [ 39.561092][ T2973] em28xx 3-1:0.0: Config register raw data: 0xffffffed [ 39.564135][ T2993] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 39.571042][ T2973] em28xx 3-1:0.0: AC97 chip type couldn't be determined [ 39.581023][ T2993] Call Trace: [ 39.581036][ T2993] [ 39.581046][ T2993] dump_stack_lvl+0x116/0x1f0 [ 39.587971][ T2973] em28xx 3-1:0.0: No AC97 audio processor [ 39.591235][ T2993] print_report+0xc3/0x620 [ 39.591269][ T2993] ? __virt_addr_valid+0x5e/0x590 [ 39.597521][ T2973] usb 3-1: Decoder not found [ 39.598844][ T2993] ? __phys_addr+0xc6/0x150 [ 39.604611][ T2973] em28xx 3-1:0.0: failed to create media graph [ 39.608949][ T2993] kasan_report+0xd9/0x110 [ 39.614656][ T2973] em28xx 3-1:0.0: V4L2 device video1 deregistered [ 39.618522][ T2993] ? v4l2_fh_init+0x27d/0x2c0 [ 39.624490][ T2973] em28xx 3-1:0.0: Remote control support is not available for this card. [ 39.629143][ T2993] ? v4l2_fh_init+0x27d/0x2c0 [ 39.634245][ T2824] em28xx 3-1:0.0: Closing input extension [ 39.639974][ T2993] v4l2_fh_init+0x27d/0x2c0 [ 39.646831][ T2824] em28xx 3-1:0.0: Freeing device [ 39.653029][ T2993] v4l2_fh_open+0x83/0xc0 [ 39.653068][ T2993] em28xx_v4l2_open+0x250/0x7e0 [ 39.653100][ T2993] v4l2_open+0x222/0x490 [ 39.686510][ T2993] ? __pfx_v4l2_open+0x10/0x10 [ 39.691319][ T2993] chrdev_open+0x237/0x6a0 [ 39.695778][ T2993] ? __pfx_chrdev_open+0x10/0x10 [ 39.700751][ T2993] ? lockref_get+0x15/0x50 [ 39.705206][ T2993] do_dentry_open+0x6cb/0x1390 [ 39.710011][ T2993] ? __pfx_chrdev_open+0x10/0x10 [ 39.714984][ T2993] ? inode_permission+0xdd/0x5f0 [ 39.719962][ T2993] vfs_open+0x82/0x3f0 [ 39.724051][ T2993] ? may_open+0x1f2/0x400 [ 39.728374][ T2993] path_openat+0x1e6a/0x2d60 [ 39.732963][ T2993] ? __pfx_path_openat+0x10/0x10 [ 39.737901][ T2993] ? __pfx___lock_acquire+0x10/0x10 [ 39.743094][ T2993] do_filp_open+0x1dc/0x430 [ 39.747596][ T2993] ? __pfx_do_filp_open+0x10/0x10 [ 39.752615][ T2993] ? find_held_lock+0x2d/0x110 [ 39.757379][ T2993] ? _raw_spin_unlock+0x28/0x50 [ 39.762228][ T2993] ? alloc_fd+0x2d7/0x6c0 [ 39.766556][ T2993] do_sys_openat2+0x17a/0x1e0 [ 39.771225][ T2993] ? __pfx_do_sys_openat2+0x10/0x10 [ 39.776415][ T2993] ? do_user_addr_fault+0xd97/0x12c0 [ 39.781695][ T2993] ? __pfx_lock_release+0x10/0x10 [ 39.786714][ T2993] ? trace_lock_acquire+0x14a/0x1d0 [ 39.791907][ T2993] __x64_sys_openat+0x175/0x210 [ 39.796755][ T2993] ? __pfx___x64_sys_openat+0x10/0x10 [ 39.802122][ T2993] ? do_user_addr_fault+0x839/0x12c0 [ 39.807404][ T2993] do_syscall_64+0xcd/0x250 [ 39.811912][ T2993] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 39.817817][ T2993] RIP: 0033:0x7fa05d16d9a4 [ 39.822232][ T2993] Code: 24 20 48 8d 44 24 30 48 89 44 24 28 64 8b 04 25 18 00 00 00 85 c0 75 2c 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 76 60 48 8b 15 55 a4 0d 00 f7 d8 64 89 02 48 83 [ 39.841921][ T2993] RSP: 002b:00007ffe6e2042f0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 39.850321][ T2993] RAX: ffffffffffffffda RBX: 00007ffe6e204508 RCX: 00007fa05d16d9a4 [ 39.858288][ T2993] RDX: 0000000000000000 RSI: 00007ffe6e205f27 RDI: 00000000ffffff9c [ 39.866259][ T2993] RBP: 00007ffe6e205f27 R08: 0000000000000000 R09: 0000000000000000 [ 39.874245][ T2993] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 39.882223][ T2993] R13: 00007ffe6e204520 R14: 00005585ee211670 R15: 00007fa05d5bca80 [ 39.890205][ T2993] [ 39.893214][ T2993] [ 39.895546][ T2993] Allocated by task 2978: [ 39.899857][ T2993] kasan_save_stack+0x33/0x60 [ 39.904532][ T2993] kasan_save_track+0x14/0x30 [ 39.909200][ T2993] __kasan_kmalloc+0x8f/0xa0 [ 39.913781][ T2993] em28xx_v4l2_init+0x114/0x4050 [ 39.918716][ T2993] em28xx_init_extension+0x137/0x200 [ 39.923988][ T2993] request_module_async+0x61/0x70 [ 39.929002][ T2993] process_one_work+0x9c5/0x1ba0 [ 39.933950][ T2993] worker_thread+0x6c8/0xf00 [ 39.938533][ T2993] kthread+0x2c1/0x3a0 [ 39.942591][ T2993] ret_from_fork+0x45/0x80 [ 39.947002][ T2993] ret_from_fork_asm+0x1a/0x30 [ 39.951758][ T2993] [ 39.954068][ T2993] Freed by task 2978: [ 39.958032][ T2993] kasan_save_stack+0x33/0x60 [ 39.962709][ T2993] kasan_save_track+0x14/0x30 [ 39.967379][ T2993] kasan_save_free_info+0x3b/0x60 [ 39.972395][ T2993] __kasan_slab_free+0x37/0x50 [ 39.977152][ T2993] kfree+0x130/0x480 [ 39.981037][ T2993] em28xx_v4l2_init+0x22a4/0x4050 [ 39.986080][ T2993] em28xx_init_extension+0x137/0x200 [ 39.991356][ T2993] request_module_async+0x61/0x70 [ 39.996372][ T2993] process_one_work+0x9c5/0x1ba0 [ 40.001336][ T2993] worker_thread+0x6c8/0xf00 [ 40.005939][ T2993] kthread+0x2c1/0x3a0 [ 40.009997][ T2993] ret_from_fork+0x45/0x80 [ 40.014408][ T2993] ret_from_fork_asm+0x1a/0x30 [ 40.019167][ T2993] [ 40.021476][ T2993] The buggy address belongs to the object at ffff88812298c000 [ 40.021476][ T2993] which belongs to the cache kmalloc-8k of size 8192 [ 40.035518][ T2993] The buggy address is located 1840 bytes inside of [ 40.035518][ T2993] freed 8192-byte region [ffff88812298c000, ffff88812298e000) [ 40.049479][ T2993] [ 40.051792][ T2993] The buggy address belongs to the physical page: [ 40.058195][ T2993] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x122988 [ 40.060823][ T2824] usb 3-1: new high-speed USB device number 3 using dummy_hcd [ 40.067025][ T2993] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 40.067045][ T2993] flags: 0x200000000000040(head|node=0|zone=2) [ 40.067063][ T2993] page_type: f5(slab) [ 40.067091][ T2993] raw: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000 [ 40.101693][ T2993] raw: 0000000000000000 0000000000020002 00000001f5000000 0000000000000000 [ 40.110267][ T2993] head: 0200000000000040 ffff888100042280 dead000000000122 0000000000000000 [ 40.118926][ T2993] head: 0000000000000000 0000000000020002 00000001f5000000 0000000000000000 [ 40.127585][ T2993] head: 0200000000000003 ffffea00048a6201 ffffffffffffffff 0000000000000000 [ 40.136241][ T2993] head: 0000000000000008 0000000000000000 00000000ffffffff 0000000000000000 [ 40.144896][ T2993] page dumped because: kasan: bad access detected [ 40.151310][ T2993] page_owner tracks the page as allocated [ 40.157009][ T2993] page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd28c0(GFP_NOWAIT|__GFP_IO|__GFP_FS|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 2959, tgid 2959 (sshd), ts 37752276659, free_ts 29797439050 [ 40.177497][ T2993] post_alloc_hook+0x2d1/0x350 [ 40.182255][ T2993] get_page_from_freelist+0xd6b/0x2660 [ 40.187704][ T2993] __alloc_pages_noprof+0x221/0x2270 [ 40.192978][ T2993] alloc_pages_mpol_noprof+0xeb/0x400 [ 40.198338][ T2993] new_slab+0x2c9/0x410 [ 40.202506][ T2993] ___slab_alloc+0xd45/0x1760 [ 40.207169][ T2993] __slab_alloc.constprop.0+0x56/0xb0 [ 40.212530][ T2993] __kmalloc_node_track_caller_noprof+0x14e/0x3e0 [ 40.218935][ T2993] kmalloc_reserve+0xef/0x2c0 [ 40.223604][ T2993] __alloc_skb+0x164/0x380 [ 40.228012][ T2993] netlink_dump+0x2c1/0xcd0 [ 40.232511][ T2993] netlink_recvmsg+0xa0d/0xf30 [ 40.237268][ T2993] sock_recvmsg+0x1f6/0x250 [ 40.241762][ T2993] ____sys_recvmsg+0x219/0x6b0 [ 40.246516][ T2993] ___sys_recvmsg+0x115/0x1a0 [ 40.251180][ T2993] __sys_recvmsg+0x114/0x1e0 [ 40.255758][ T2993] page last free pid 2948 tgid 2948 stack trace: [ 40.262069][ T2993] free_unref_page+0x58a/0xb50 [ 40.266839][ T2993] __folio_put+0x1cd/0x250 [ 40.271253][ T2993] anon_pipe_buf_release+0x36c/0x430 [ 40.276530][ T2993] pipe_read+0x701/0x1020 [ 40.280845][ T2993] vfs_read+0xa4c/0xbe0 [ 40.284996][ T2993] ksys_read+0x1fa/0x260 [ 40.289233][ T2993] do_syscall_64+0xcd/0x250 [ 40.293724][ T2993] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 40.299630][ T2993] [ 40.301940][ T2993] Memory state around the buggy address: [ 40.307555][ T2993] ffff88812298c600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 40.311991][ T2824] usb 3-1: config 0 interface 0 altsetting 0 has an invalid descriptor for endpoint zero, skipping [ 40.315598][ T2993] ffff88812298c680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 40.326309][ T2824] usb 3-1: config 0 interface 0 altsetting 0 endpoint 0x82 has an invalid bInterval 0, changing to 7 [ 40.334302][ T2993] >ffff88812298c700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 40.334315][ T2993] ^ [ 40.334327][ T2993] ffff88812298c780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 40.334341][ T2993] ffff88812298c800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 40.334353][ T2993] ================================================================== [ 40.334699][ T2993] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 40.334711][ T2993] CPU: 1 UID: 0 PID: 2993 Comm: v4l_id Not tainted 6.12.0-rc6-syzkaller-00106-gde9df030ccb5 #0 [ 40.334740][ T2993] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 40.334753][ T2993] Call Trace: [ 40.334760][ T2993] [ 40.334769][ T2993] dump_stack_lvl+0x3d/0x1f0 [ 40.334803][ T2993] panic+0x71d/0x800 [ 40.334833][ T2993] ? __pfx_panic+0x10/0x10 [ 40.334867][ T2993] ? check_panic_on_warn+0x1f/0xb0 [ 40.334899][ T2993] check_panic_on_warn+0xab/0xb0 [ 40.334930][ T2993] end_report+0x117/0x180 [ 40.334962][ T2993] kasan_report+0xe9/0x110 [ 40.334992][ T2993] ? v4l2_fh_init+0x27d/0x2c0 [ 40.335026][ T2993] ? v4l2_fh_init+0x27d/0x2c0 [ 40.335062][ T2993] v4l2_fh_init+0x27d/0x2c0 [ 40.335094][ T2993] v4l2_fh_open+0x83/0xc0 [ 40.335126][ T2993] em28xx_v4l2_open+0x250/0x7e0 [ 40.335159][ T2993] v4l2_open+0x222/0x490 [ 40.335189][ T2993] ? __pfx_v4l2_open+0x10/0x10 [ 40.335218][ T2993] chrdev_open+0x237/0x6a0 [ 40.335242][ T2993] ? __pfx_chrdev_open+0x10/0x10 [ 40.335265][ T2993] ? lockref_get+0x15/0x50 [ 40.335294][ T2993] do_dentry_open+0x6cb/0x1390 [ 40.335328][ T2993] ? __pfx_chrdev_open+0x10/0x10 [ 40.335351][ T2993] ? inode_permission+0xdd/0x5f0 [ 40.335379][ T2993] vfs_open+0x82/0x3f0 [ 40.335403][ T2993] ? may_open+0x1f2/0x400 [ 40.335431][ T2993] path_openat+0x1e6a/0x2d60 [ 40.335469][ T2993] ? __pfx_path_openat+0x10/0x10 [ 40.335503][ T2993] ? __pfx___lock_acquire+0x10/0x10 [ 40.335535][ T2993] do_filp_open+0x1dc/0x430 [ 40.335569][ T2993] ? __pfx_do_filp_open+0x10/0x10 [ 40.335601][ T2993] ? find_held_lock+0x2d/0x110 [ 40.335642][ T2993] ? _raw_spin_unlock+0x28/0x50 [ 40.335669][ T2993] ? alloc_fd+0x2d7/0x6c0 [ 40.335702][ T2993] do_sys_openat2+0x17a/0x1e0 [ 40.335729][ T2993] ? __pfx_do_sys_openat2+0x10/0x10 [ 40.335757][ T2993] ? do_user_addr_fault+0xd97/0x12c0 [ 40.335788][ T2993] ? __pfx_lock_release+0x10/0x10 [ 40.335817][ T2993] ? trace_lock_acquire+0x14a/0x1d0 [ 40.335843][ T2993] __x64_sys_openat+0x175/0x210 [ 40.335871][ T2993] ? __pfx___x64_sys_openat+0x10/0x10 [ 40.335900][ T2993] ? do_user_addr_fault+0x839/0x12c0 [ 40.335932][ T2993] do_syscall_64+0xcd/0x250 [ 40.335956][ T2993] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 40.335992][ T2993] RIP: 0033:0x7fa05d16d9a4 [ 40.336012][ T2993] Code: 24 20 48 8d 44 24 30 48 89 44 24 28 64 8b 04 25 18 00 00 00 85 c0 75 2c 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 76 60 48 8b 15 55 a4 0d 00 f7 d8 64 89 02 48 83 [ 40.336034][ T2993] RSP: 002b:00007ffe6e2042f0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 40.336058][ T2993] RAX: ffffffffffffffda RBX: 00007ffe6e204508 RCX: 00007fa05d16d9a4 [ 40.336074][ T2993] RDX: 0000000000000000 RSI: 00007ffe6e205f27 RDI: 00000000ffffff9c [ 40.336090][ T2993] RBP: 00007ffe6e205f27 R08: 0000000000000000 R09: 0000000000000000 [ 40.336105][ T2993] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 40.336120][ T2993] R13: 00007ffe6e204520 R14: 00005585ee211670 R15: 00007fa05d5bca80 [ 40.336143][ T2993] [ 40.345427][ T2993] Kernel Offset: disabled