Warning: Permanently added '10.128.1.173' (ED25519) to the list of known hosts. 2026/04/26 02:39:21 parsed 1 programs [ 94.909365][ T29] audit: type=1400 audit(1777171163.638:105): avc: denied { unlink } for pid=3986 comm="syz-executor" name="swap-file" dev="sda1" ino=2026 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 trawcon="root:object_r:swapfile_t" Setting up swapspace version 1, size = 127995904 bytes [ 95.027128][ T3986] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 97.912709][ T29] audit: type=1401 audit(1777171166.638:106): op=setxattr invalid_context="u:object_r:app_data_file:s0:c512,c768" 2026/04/26 02:39:37 executed programs: 0 2026/04/26 02:40:22 executed programs: 10 [ 154.031368][ T29] audit: type=1400 audit(1777171222.758:107): avc: denied { read write } for pid=6762 comm="syz.6.20" 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 [ 154.115182][ T29] audit: type=1400 audit(1777171222.788:108): avc: denied { open } for pid=6762 comm="syz.6.20" 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 [ 154.170257][ T29] audit: type=1400 audit(1777171222.788:109): avc: denied { ioctl } for pid=6762 comm="syz.6.20" 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 [ 154.334433][ T23] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 154.343151][ T1122] usb 7-1: new high-speed USB device number 2 using dummy_hcd [ 154.505245][ T23] usb 1-1: Using ep0 maxpacket: 16 [ 154.510455][ T1122] usb 7-1: Using ep0 maxpacket: 16 [ 154.520217][ T23] usb 1-1: config 246 interface 0 altsetting 0 has an endpoint descriptor with address 0xF3, changing to 0x83 [ 154.533478][ T1122] usb 7-1: config 246 interface 0 altsetting 0 has an endpoint descriptor with address 0xF3, changing to 0x83 [ 154.545970][ T23] usb 1-1: config 246 interface 0 altsetting 0 endpoint 0x83 has invalid maxpacket 34178, setting to 1024 [ 154.558087][ T1122] usb 7-1: config 246 interface 0 altsetting 0 endpoint 0x83 has invalid maxpacket 34178, setting to 1024 [ 154.572002][ T1122] usb 7-1: New USB device found, idVendor=2040, idProduct=0265, bcdDevice=4e.d1 [ 154.581456][ T23] usb 1-1: New USB device found, idVendor=2040, idProduct=0265, bcdDevice=4e.d1 [ 154.592030][ T1122] usb 7-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 154.600221][ T23] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 154.608505][ T1122] usb 7-1: Product: syz [ 154.612695][ T23] usb 1-1: Product: syz [ 154.616933][ T1122] usb 7-1: Manufacturer: syz [ 154.621601][ T23] usb 1-1: Manufacturer: syz [ 154.624302][ T10] usb 2-1: new high-speed USB device number 2 using dummy_hcd [ 154.626319][ T1122] usb 7-1: SerialNumber: syz [ 154.627718][ T23] usb 1-1: SerialNumber: syz [ 154.644219][ T6769] usb 8-1: new high-speed USB device number 2 using dummy_hcd [ 154.661331][ T1122] em28xx 7-1:246.0: New device syz syz @ 480 Mbps (2040:0265, interface 0, class 0) [ 154.673275][ T1122] em28xx 7-1:246.0: Audio interface 0 found (Vendor Class) [ 154.687928][ T23] em28xx 1-1:246.0: New device syz syz @ 480 Mbps (2040:0265, interface 0, class 0) [ 154.694054][ T2801] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 154.698915][ T23] em28xx 1-1:246.0: Audio interface 0 found (Vendor Class) [ 154.784078][ T10] usb 2-1: Using ep0 maxpacket: 16 [ 154.791170][ T10] usb 2-1: config 246 interface 0 altsetting 0 has an endpoint descriptor with address 0xF3, changing to 0x83 [ 154.803047][ T10] usb 2-1: config 246 interface 0 altsetting 0 endpoint 0x83 has invalid maxpacket 34178, setting to 1024 [ 154.814057][ T6769] usb 8-1: Using ep0 maxpacket: 16 [ 154.816771][ T10] usb 2-1: New USB device found, idVendor=2040, idProduct=0265, bcdDevice=4e.d1 [ 154.821685][ T6769] usb 8-1: config 246 interface 0 altsetting 0 has an endpoint descriptor with address 0xF3, changing to 0x83 [ 154.828963][ T10] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 154.841799][ T6769] usb 8-1: config 246 interface 0 altsetting 0 endpoint 0x83 has invalid maxpacket 34178, setting to 1024 [ 154.849551][ T10] usb 2-1: Product: syz [ 154.864194][ T6769] usb 8-1: New USB device found, idVendor=2040, idProduct=0265, bcdDevice=4e.d1 [ 154.865318][ T10] usb 2-1: Manufacturer: syz [ 154.876482][ T6769] usb 8-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 154.878429][ T10] usb 2-1: SerialNumber: syz [ 154.889879][ T6769] usb 8-1: Product: syz [ 154.894007][ T2801] usb 5-1: Using ep0 maxpacket: 16 [ 154.896203][ T6769] usb 8-1: Manufacturer: syz [ 154.905982][ T6769] usb 8-1: SerialNumber: syz [ 154.906182][ T2801] usb 5-1: config 246 interface 0 altsetting 0 has an endpoint descriptor with address 0xF3, changing to 0x83 [ 154.920309][ T6769] em28xx 8-1:246.0: New device syz syz @ 480 Mbps (2040:0265, interface 0, class 0) [ 154.927154][ T2801] usb 5-1: config 246 interface 0 altsetting 0 endpoint 0x83 has invalid maxpacket 34178, setting to 1024 [ 154.944967][ T1122] em28xx 7-1:246.0: unknown em28xx chip ID (0) [ 154.946476][ T10] em28xx 2-1:246.0: New device syz syz @ 480 Mbps (2040:0265, interface 0, class 0) [ 154.956467][ T6769] em28xx 8-1:246.0: Audio interface 0 found (Vendor Class) [ 154.960843][ T10] em28xx 2-1:246.0: Audio interface 0 found (Vendor Class) [ 154.968509][ T23] em28xx 1-1:246.0: unknown em28xx chip ID (0) [ 154.985113][ T1122] em28xx 7-1:246.0: Config register raw data: 0xfffffffb [ 154.990183][ T2801] usb 5-1: New USB device found, idVendor=2040, idProduct=0265, bcdDevice=4e.d1 [ 154.995112][ T23] em28xx 1-1:246.0: Config register raw data: 0xfffffffb [ 155.009896][ T1122] em28xx 7-1:246.0: AC97 chip type couldn't be determined [ 155.018686][ T1122] em28xx 7-1:246.0: No AC97 audio processor [ 155.021911][ T2801] usb 5-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 155.028615][ T23] em28xx 1-1:246.0: AC97 chip type couldn't be determined [ 155.033898][ T2801] usb 5-1: Product: syz [ 155.044197][ T1122] em28xx 7-1:246.0: We currently don't support analog TV or stream capture on dual tuners. [ 155.044708][ T2801] usb 5-1: Manufacturer: syz [ 155.060176][ T2801] usb 5-1: SerialNumber: syz [ 155.060399][ T23] em28xx 1-1:246.0: No AC97 audio processor [ 155.071664][ T23] em28xx 1-1:246.0: We currently don't support analog TV or stream capture on dual tuners. [ 155.083542][ T2801] em28xx 5-1:246.0: New device syz syz @ 480 Mbps (2040:0265, interface 0, class 0) [ 155.093396][ T2801] em28xx 5-1:246.0: Audio interface 0 found (Vendor Class) [ 155.134543][ T1122] em28xx 7-1:246.0: unknown em28xx chip ID (0) [ 155.141316][ T1122] em28xx 7-1:246.0: Config register raw data: 0xfffffffb [ 155.149281][ T23] em28xx 1-1:246.0: unknown em28xx chip ID (0) [ 155.156198][ T1122] em28xx 7-1:246.0: AC97 chip type couldn't be determined [ 155.163596][ T1122] em28xx 7-1:246.0: No AC97 audio processor [ 155.170030][ T23] em28xx 1-1:246.0: Config register raw data: 0xfffffffb [ 155.177738][ T6769] em28xx 8-1:246.0: unknown em28xx chip ID (0) [ 155.192938][ T6769] em28xx 8-1:246.0: Config register raw data: 0xfffffffb [ 155.201682][ T23] em28xx 1-1:246.0: AC97 chip type couldn't be determined [ 155.204409][ T10] em28xx 2-1:246.0: unknown em28xx chip ID (0) [ 155.214111][ T23] em28xx 1-1:246.0: No AC97 audio processor [ 155.216227][ T10] em28xx 2-1:246.0: Config register raw data: 0xfffffffb [ 155.221585][ T6769] em28xx 8-1:246.0: AC97 chip type couldn't be determined [ 155.229816][ T10] em28xx 2-1:246.0: AC97 chip type couldn't be determined [ 155.243499][ T10] em28xx 2-1:246.0: No AC97 audio processor [ 155.249779][ T10] em28xx 2-1:246.0: We currently don't support analog TV or stream capture on dual tuners. [ 155.263989][ T6769] em28xx 8-1:246.0: No AC97 audio processor [ 155.273991][ T6769] em28xx 8-1:246.0: We currently don't support analog TV or stream capture on dual tuners. [ 155.314691][ T10] em28xx 2-1:246.0: unknown em28xx chip ID (0) [ 155.321585][ T10] em28xx 2-1:246.0: Config register raw data: 0xfffffffb [ 155.329489][ T10] em28xx 2-1:246.0: AC97 chip type couldn't be determined [ 155.338779][ T10] em28xx 2-1:246.0: No AC97 audio processor [ 155.344877][ T2801] em28xx 5-1:246.0: unknown em28xx chip ID (0) [ 155.360456][ T2801] em28xx 5-1:246.0: Config register raw data: 0xfffffffb [ 155.364360][ T6769] em28xx 8-1:246.0: unknown em28xx chip ID (0) [ 155.374372][ T2801] em28xx 5-1:246.0: AC97 chip type couldn't be determined [ 155.387833][ T6769] em28xx 8-1:246.0: Config register raw data: 0xfffffffb [ 155.391991][ T2801] em28xx 5-1:246.0: No AC97 audio processor [ 155.409760][ T6769] em28xx 8-1:246.0: AC97 chip type couldn't be determined [ 155.431285][ T2801] em28xx 5-1:246.0: We currently don't support analog TV or stream capture on dual tuners. [ 155.432614][ T6769] em28xx 8-1:246.0: No AC97 audio processor [ 155.545372][ T2801] em28xx 5-1:246.0: unknown em28xx chip ID (0) [ 155.564629][ T2801] em28xx 5-1:246.0: Config register raw data: 0xfffffffb [ 155.584432][ T2801] em28xx 5-1:246.0: AC97 chip type couldn't be determined [ 155.600063][ T2801] em28xx 5-1:246.0: No AC97 audio processor [ 155.684862][ T1122] usb 7-1: USB disconnect, device number 2 [ 155.702736][ T23] usb 1-1: USB disconnect, device number 2 [ 155.746314][ T23] em28xx 1-1:246.0: Disconnecting em28xx #5 [ 155.752293][ T23] em28xx 1-1:246.0: Disconnecting em28xx [ 155.767764][ T1122] em28xx 7-1:246.0: Disconnecting em28xx #4 [ 155.788693][ T1122] em28xx 7-1:246.0: Disconnecting em28xx [ 155.827705][ T23] em28xx 1-1:246.0: Freeing device [ 155.839287][ T1122] em28xx 7-1:246.0: Freeing device [ 155.852447][ T23] em28xx 1-1:246.0: Freeing device [ 155.865226][ T1122] em28xx 7-1:246.0: Freeing device [ 155.927744][ T10] usb 2-1: USB disconnect, device number 2 [ 155.967286][ T10] em28xx 2-1:246.0: Disconnecting em28xx #7 [ 155.983080][ T10] em28xx 2-1:246.0: Disconnecting em28xx [ 156.001635][ T10] ================================================================== [ 156.010035][ T10] BUG: KASAN: slab-out-of-bounds in __list_del_entry_valid_or_report+0x1b1/0x1d0 [ 156.014581][ T6769] usb 8-1: USB disconnect, device number 2 [ 156.019181][ T10] Read of size 8 at addr ffff88811eb00250 by task kworker/0:1/10 [ 156.019204][ T10] [ 156.019235][ T10] CPU: 0 UID: 0 PID: 10 Comm: kworker/0:1 Not tainted syzkaller #0 PREEMPT(full) [ 156.019259][ T10] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 156.019278][ T10] Workqueue: usb_hub_wq hub_event [ 156.019325][ T10] Call Trace: [ 156.019334][ T10] [ 156.019347][ T10] dump_stack_lvl+0x100/0x190 [ 156.019380][ T10] print_report+0x13d/0x4b0 [ 156.019415][ T10] ? __virt_addr_valid+0x239/0x430 [ 156.019443][ T10] ? __list_del_entry_valid_or_report+0x1b1/0x1d0 [ 156.019470][ T10] kasan_report+0xdf/0x1d0 [ 156.019501][ T10] ? __list_del_entry_valid_or_report+0x1b1/0x1d0 [ 156.019537][ T10] __list_del_entry_valid_or_report+0x1b1/0x1d0 [ 156.019563][ T10] em28xx_close_extension+0x10b/0x2b0 [ 156.019596][ T10] em28xx_usb_disconnect.cold+0x13d/0x253 [ 156.019630][ T10] usb_unbind_interface+0x1dd/0x9e0 [ 156.019666][ T10] ? __pfx_usb_unbind_interface+0x10/0x10 [ 156.019699][ T10] device_remove+0x12a/0x180 [ 156.019729][ T10] device_release_driver_internal+0x44e/0x620 [ 156.019765][ T10] bus_remove_device+0x2bc/0x560 [ 156.019794][ T10] ? __pfx_bus_remove_device+0x10/0x10 [ 156.019820][ T10] ? __pfx_device_remove_attrs+0x10/0x10 [ 156.019852][ T10] device_del+0x376/0x9b0 [ 156.019882][ T10] ? __pfx_device_del+0x10/0x10 [ 156.019910][ T10] ? kobject_put+0xb9/0x640 [ 156.019937][ T10] usb_disable_device+0x367/0x810 [ 156.019969][ T10] usb_disconnect+0x2e2/0x9a0 [ 156.020000][ T10] hub_event+0x1d0c/0x4af0 [ 156.020039][ T10] ? __lock_acquire+0x4a5/0x2630 [ 156.020074][ T10] ? do_raw_spin_unlock+0x145/0x1e0 [ 156.020100][ T10] ? __pfx_hub_event+0x10/0x10 [ 156.020127][ T10] ? assoc_array_insert+0x22e0/0x32c0 [ 156.020156][ T10] ? rcu_is_watching+0x12/0xc0 [ 156.020186][ T10] process_one_work+0xa0e/0x1980 [ 156.020218][ T10] ? __pfx_process_one_work+0x10/0x10 [ 156.020246][ T10] ? __pfx_hub_event+0x10/0x10 [ 156.020274][ T10] worker_thread+0x5ef/0xe50 [ 156.020302][ T10] ? __pfx_worker_thread+0x10/0x10 [ 156.020328][ T10] ? kthread+0x13a/0x450 [ 156.020349][ T10] ? __pfx_worker_thread+0x10/0x10 [ 156.020373][ T10] kthread+0x370/0x450 [ 156.020393][ T10] ? __pfx_kthread+0x10/0x10 [ 156.020416][ T10] ret_from_fork+0x69a/0xc80 [ 156.020447][ T10] ? __pfx_ret_from_fork+0x10/0x10 [ 156.020475][ T10] ? __switch_to+0x7f6/0x1100 [ 156.020515][ T10] ? __switch_to_asm+0x39/0x70 [ 156.020546][ T10] ? __pfx_kthread+0x10/0x10 [ 156.020569][ T10] ret_from_fork_asm+0x1a/0x30 [ 156.020606][ T10] [ 156.020615][ T10] [ 156.052587][ T6769] em28xx 8-1:246.0: Disconnecting em28xx #8 [ 156.054398][ T10] Allocated by task 6788: [ 156.054422][ T10] kasan_save_stack+0x30/0x50 [ 156.054451][ T10] kasan_save_track+0x14/0x30 [ 156.054471][ T10] __kasan_kmalloc+0x8f/0xa0 [ 156.054489][ T10] __kmalloc_node_track_caller_noprof+0x306/0x800 [ 156.064001][ T6769] em28xx 8-1:246.0: Disconnecting em28xx [ 156.065825][ T10] kmalloc_reserve+0xe8/0x350 [ 156.204071][ T23] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 156.205982][ T10] __alloc_skb+0x185/0x710 [ 156.206011][ T10] alloc_skb_with_frags+0xdd/0x760 [ 156.211098][ T1122] usb 7-1: new high-speed USB device number 3 using dummy_hcd [ 156.216503][ T10] sock_alloc_send_pskb+0x801/0x980 [ 156.216538][ T10] unix_dgram_sendmsg+0x3c7/0x1810 [ 156.216560][ T10] sock_write_iter+0x524/0x5a0 [ 156.216585][ T10] vfs_write+0x6ac/0x1070 [ 156.216756][ T10] ksys_write+0x1f8/0x250 [ 156.364053][ T1122] usb 7-1: Using ep0 maxpacket: 16 [ 156.364583][ T10] do_syscall_64+0x10b/0x7f0 [ 156.369112][ T23] usb 1-1: Using ep0 maxpacket: 16 [ 156.373423][ T10] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 156.380836][ T23] usb 1-1: config 246 interface 0 altsetting 0 has an endpoint descriptor with address 0xF3, changing to 0x83 [ 156.380992][ T1122] usb 7-1: config 246 interface 0 altsetting 0 has an endpoint descriptor with address 0xF3, changing to 0x83 [ 156.383201][ T10] [ 156.383209][ T10] Freed by task 2854: [ 156.383221][ T10] kasan_save_stack+0x30/0x50 [ 156.394328][ T10] kasan_save_track+0x14/0x30 [ 156.394358][ T10] kasan_save_free_info+0x3b/0x70 [ 156.394387][ T10] __kasan_slab_free+0x43/0x70 [ 156.394409][ T10] kfree+0x204/0x650 [ 156.394433][ T10] skb_free_head+0xb9/0x160 [ 156.407109][ T1122] usb 7-1: config 246 interface 0 altsetting 0 endpoint 0x83 has invalid maxpacket 34178, setting to 1024 [ 156.417852][ T10] skb_release_data+0x6c5/0x8e0 [ 156.417880][ T10] consume_skb+0xc4/0x110 [ 156.417900][ T10] __unix_dgram_recvmsg+0x754/0xc30 [ 156.417922][ T10] unix_dgram_recvmsg+0xcd/0x100 [ 156.417944][ T10] sock_recvmsg+0x1a4/0x1f0 [ 156.417967][ T10] ____sys_recvmsg+0x218/0x640 [ 156.417988][ T10] ___sys_recvmsg+0x16a/0x1a0 [ 156.421999][ T23] usb 1-1: config 246 interface 0 altsetting 0 endpoint 0x83 has invalid maxpacket 34178, setting to 1024 [ 156.424368][ T10] __sys_recvmsg+0x16d/0x220 [ 156.424396][ T10] do_syscall_64+0x10b/0x7f0 [ 156.424426][ T10] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 156.424447][ T10] [ 156.424454][ T10] The buggy address belongs to the object at ffff88811eb00000 [ 156.424454][ T10] which belongs to the cache kmalloc-cg-512 of size 512 [ 156.432247][ T23] usb 1-1: New USB device found, idVendor=2040, idProduct=0265, bcdDevice=4e.d1 [ 156.433866][ T10] The buggy address is located 80 bytes to the right of [ 156.433866][ T10] allocated 512-byte region [ffff88811eb00000, ffff88811eb00200) [ 156.433893][ T10] [ 156.433899][ T10] The buggy address belongs to the physical page: [ 156.439742][ T23] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 156.443672][ T10] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11eb00 [ 156.443700][ T10] head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 156.443717][ T10] memcg:ffff88811eb00211 [ 156.443725][ T10] flags: 0x200000000000040(head|node=0|zone=2) [ 156.443752][ T10] page_type: f5(slab) [ 156.443771][ T10] raw: 0200000000000040 ffff88810005d140 dead000000000100 dead000000000122 [ 156.443794][ T10] raw: 0000000000000000 0000040000100010 00000000f5000000 ffff88811eb00211 [ 156.449118][ T23] usb 1-1: Product: syz [ 156.452203][ T10] head: 0200000000000040 ffff88810005d140 dead000000000100 dead000000000122 [ 156.452225][ T10] head: 0000000000000000 0000040000100010 00000000f5000000 ffff88811eb00211 [ 156.452244][ T10] head: 0200000000000002 ffffffffffffff01 00000000ffffffff 00000000ffffffff [ 156.452262][ T10] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000004 [ 156.452273][ T10] page dumped because: kasan: bad access detected [ 156.452301][ T10] page_owner tracks the page as allocated [ 156.464160][ T1122] usb 7-1: New USB device found, idVendor=2040, idProduct=0265, bcdDevice=4e.d1 [ 156.468393][ T10] page last allocated via order 2, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 2843, tgid 2843 (klogd), ts 155858789591, free_ts 155852403879 [ 156.476628][ T29] audit: type=1400 audit(1777171225.208:110): avc: denied { read } for pid=2836 comm="syslogd" name="log" dev="sda1" ino=2010 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:var_t tclass=lnk_file permissive=1 [ 156.477974][ T10] post_alloc_hook+0x153/0x170 [ 156.484125][ T1122] usb 7-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 156.487530][ T10] get_page_from_freelist+0xf34/0x3a90 [ 156.487572][ T10] __alloc_frozen_pages_noprof+0x273/0x28a0 [ 156.487599][ T10] new_slab+0xa6/0x6b0 [ 156.487621][ T10] refill_objects+0x277/0x420 [ 156.492775][ T29] audit: type=1400 audit(1777171225.208:111): avc: denied { search } for pid=2836 comm="syslogd" name="/" dev="tmpfs" ino=1 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 156.497234][ T10] __pcs_replace_empty_main+0x375/0x650 [ 156.497268][ T10] __kmalloc_node_track_caller_noprof+0x651/0x800 [ 156.497297][ T10] kmalloc_reserve+0xe8/0x350 [ 156.509648][ T1122] usb 7-1: Product: syz [ 156.513177][ T10] __alloc_skb+0x185/0x710 [ 156.513202][ T10] alloc_skb_with_frags+0xdd/0x760 [ 156.518839][ T23] usb 1-1: Manufacturer: syz [ 156.523760][ T10] sock_alloc_send_pskb+0x801/0x980 [ 156.526679][ T1122] usb 7-1: Manufacturer: syz [ 156.540755][ T10] unix_dgram_sendmsg+0x3c7/0x1810 [ 156.540790][ T10] __sys_sendto+0x468/0x4b0 [ 156.540818][ T10] __x64_sys_sendto+0xe0/0x1c0 [ 156.540845][ T10] do_syscall_64+0x10b/0x7f0 [ 156.540874][ T10] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 156.540896][ T10] page last free pid 23 tgid 23 stack trace: [ 156.551065][ T23] usb 1-1: SerialNumber: syz [ 156.564660][ T10] __free_frozen_pages+0x692/0xf10 [ 156.564696][ T10] kref_put.constprop.0.isra.0+0x4d/0x6d [ 156.564728][ T10] em28xx_usb_disconnect.cold+0x1b4/0x253 [ 156.564755][ T10] usb_unbind_interface+0x1dd/0x9e0 [ 156.564783][ T10] device_remove+0x12a/0x180 [ 156.564806][ T10] device_release_driver_internal+0x44e/0x620 [ 156.567413][ T29] audit: type=1400 audit(1777171225.208:112): avc: denied { search } for pid=2836 comm="syslogd" name="/" dev="tmpfs" ino=1 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 156.573700][ T10] bus_remove_device+0x2bc/0x560 [ 156.582829][ T29] audit: type=1400 audit(1777171225.208:113): avc: denied { add_name } for pid=2836 comm="syslogd" name="messages" scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 156.590687][ T10] device_del+0x376/0x9b0 [ 156.590727][ T10] usb_disable_device+0x367/0x810 [ 156.590751][ T10] usb_disconnect+0x2e2/0x9a0 [ 156.590774][ T10] hub_event+0x1d0c/0x4af0 [ 156.590795][ T10] process_one_work+0xa0e/0x1980 [ 156.601791][ T1122] usb 7-1: SerialNumber: syz [ 156.603556][ T10] worker_thread+0x5ef/0xe50 [ 156.612868][ T29] audit: type=1400 audit(1777171225.208:114): avc: denied { create } for pid=2836 comm="syslogd" name="messages" scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 156.613692][ T10] kthread+0x370/0x450 [ 156.623081][ T29] audit: type=1400 audit(1777171225.208:115): avc: denied { append open } for pid=2836 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=5 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 156.630918][ T10] ret_from_fork+0x69a/0xc80 [ 156.630951][ T10] ret_from_fork_asm+0x1a/0x30 [ 156.630980][ T10] [ 156.630985][ T10] Memory state around the buggy address: [ 156.630998][ T10] ffff88811eb00100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 156.636314][ T29] audit: type=1400 audit(1777171225.208:116): avc: denied { getattr } for pid=2836 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=5 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 156.643822][ T10] ffff88811eb00180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 156.643844][ T10] >ffff88811eb00200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 156.643855][ T10] ^ [ 156.669089][ T1122] em28xx 7-1:246.0: New device syz syz @ 480 Mbps (2040:0265, interface 0, class 0) [ 156.670014][ T10] ffff88811eb00280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 156.685927][ T23] em28xx 1-1:246.0: New device syz syz @ 480 Mbps (2040:0265, interface 0, class 0) [ 156.691516][ T10] ffff88811eb00300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 156.691531][ T10] ================================================================== [ 156.762996][ T10] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 156.763022][ T10] CPU: 0 UID: 0 PID: 10 Comm: kworker/0:1 Not tainted syzkaller #0 PREEMPT(full) [ 156.763050][ T10] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 156.763066][ T10] Workqueue: usb_hub_wq hub_event [ 156.763103][ T10] Call Trace: [ 156.763111][ T10] [ 156.763121][ T10] dump_stack_lvl+0x100/0x190 [ 156.763167][ T10] vpanic+0x552/0x970 [ 156.763194][ T10] ? __pfx_vpanic+0x10/0x10 [ 156.763223][ T10] ? __list_del_entry_valid_or_report+0x1b1/0x1d0 [ 156.763249][ T10] panic+0xd1/0xe0 [ 156.763273][ T10] ? __pfx_panic+0x10/0x10 [ 156.763299][ T10] ? __list_del_entry_valid_or_report+0x1b1/0x1d0 [ 156.763330][ T10] ? preempt_schedule_common+0x42/0xc0 [ 156.763359][ T10] ? check_panic_on_warn+0x1f/0x90 [ 156.763385][ T10] check_panic_on_warn.cold+0x19/0x34 [ 156.763413][ T10] end_report.part.0+0x3a/0x90 [ 156.763445][ T10] kasan_report.cold+0xe/0x18 [ 156.763476][ T10] ? __list_del_entry_valid_or_report+0x1b1/0x1d0 [ 156.763505][ T10] __list_del_entry_valid_or_report+0x1b1/0x1d0 [ 156.763530][ T10] em28xx_close_extension+0x10b/0x2b0 [ 156.763562][ T10] em28xx_usb_disconnect.cold+0x13d/0x253 [ 156.763594][ T10] usb_unbind_interface+0x1dd/0x9e0 [ 156.763629][ T10] ? __pfx_usb_unbind_interface+0x10/0x10 [ 156.763660][ T10] device_remove+0x12a/0x180 [ 156.763686][ T10] device_release_driver_internal+0x44e/0x620 [ 156.763718][ T10] bus_remove_device+0x2bc/0x560 [ 156.763752][ T10] ? __pfx_bus_remove_device+0x10/0x10 [ 156.763777][ T10] ? __pfx_device_remove_attrs+0x10/0x10 [ 156.763810][ T10] device_del+0x376/0x9b0 [ 156.763840][ T10] ? __pfx_device_del+0x10/0x10 [ 156.763867][ T10] ? kobject_put+0xb9/0x640 [ 156.763894][ T10] usb_disable_device+0x367/0x810 [ 157.326280][ T10] usb_disconnect+0x2e2/0x9a0 [ 157.331095][ T10] hub_event+0x1d0c/0x4af0 [ 157.335561][ T10] ? __lock_acquire+0x4a5/0x2630 [ 157.340721][ T10] ? do_raw_spin_unlock+0x145/0x1e0 [ 157.346237][ T10] ? __pfx_hub_event+0x10/0x10 [ 157.351046][ T10] ? assoc_array_insert+0x22e0/0x32c0 [ 157.356662][ T10] ? rcu_is_watching+0x12/0xc0 [ 157.361556][ T10] process_one_work+0xa0e/0x1980 [ 157.366529][ T10] ? __pfx_process_one_work+0x10/0x10 [ 157.371925][ T10] ? __pfx_hub_event+0x10/0x10 [ 157.376733][ T10] worker_thread+0x5ef/0xe50 [ 157.381416][ T10] ? __pfx_worker_thread+0x10/0x10 [ 157.386653][ T10] ? kthread+0x13a/0x450 [ 157.390944][ T10] ? __pfx_worker_thread+0x10/0x10 [ 157.396106][ T10] kthread+0x370/0x450 [ 157.400247][ T10] ? __pfx_kthread+0x10/0x10 [ 157.404962][ T10] ret_from_fork+0x69a/0xc80 [ 157.409587][ T10] ? __pfx_ret_from_fork+0x10/0x10 [ 157.414721][ T10] ? __switch_to+0x7f6/0x1100 [ 157.419430][ T10] ? __switch_to_asm+0x39/0x70 [ 157.424229][ T10] ? __pfx_kthread+0x10/0x10 [ 157.429144][ T10] ret_from_fork_asm+0x1a/0x30 [ 157.433950][ T10] [ 157.437642][ T10] Kernel Offset: disabled [ 157.442060][ T10] Rebooting in 86400 seconds..