[ 7.533131][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!! [ 13.072937][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!! [ 13.093161][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #82!!! [ 13.138734][ T23] kauditd_printk_skb: 60 callbacks suppressed [ 13.138740][ T23] audit: type=1400 audit(1639308779.629:71): avc: denied { transition } for pid=290 comm="sshd" path="/bin/sh" dev="sda1" ino=73 scontext=system_u:system_r:initrc_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 13.168610][ T23] audit: type=1400 audit(1639308779.669:72): avc: denied { write } for pid=290 comm="sh" path="pipe:[10908]" dev="pipefs" ino=10908 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:initrc_t tclass=fifo_file permissive=1 [ 13.191078][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!! [ 15.762977][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!! [ 15.771857][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!! [ 15.992939][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #280!!! Warning: Permanently added '10.128.1.12' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program [ 36.238462][ T23] audit: type=1400 audit(1639308802.729:73): avc: denied { execmem } for pid=365 comm="syz-executor502" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 36.261004][ T23] audit: type=1400 audit(1639308802.759:74): avc: denied { create } for pid=368 comm="syz-executor502" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 36.281646][ T23] audit: type=1400 audit(1639308802.759:75): avc: denied { setopt } for pid=368 comm="syz-executor502" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1 [ 36.301861][ T23] audit: type=1400 audit(1639308802.779:76): avc: denied { ioctl } for pid=378 comm="syz-executor502" path="socket:[11066]" dev="sockfs" ino=11066 ioctlcmd=0x9429 scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=packet_socket permissive=1 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 39.150522][ T8660] ================================================================== [ 39.158626][ T8660] BUG: KASAN: double-free or invalid-free in kfree+0xd5/0x320 [ 39.166056][ T8660] [ 39.168369][ T8660] CPU: 1 PID: 8660 Comm: syz-executor502 Not tainted 5.10.84-syzkaller-00439-ge2aed161fc26 #0 [ 39.178743][ T8660] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.188777][ T8660] Call Trace: [ 39.192131][ T8660] dump_stack_lvl+0x1e2/0x24b [ 39.196784][ T8660] ? show_regs_print_info+0x18/0x18 [ 39.201953][ T8660] ? devkmsg_release+0x127/0x127 [ 39.206869][ T8660] ? kfree+0xd5/0x320 [ 39.211091][ T8660] print_address_description+0x8d/0x3d0 [ 39.216611][ T8660] ? slab_free_freelist_hook+0xcc/0x1a0 [ 39.222130][ T8660] ? kfree+0xd5/0x320 [ 39.226092][ T8660] ? kfree+0xd5/0x320 [ 39.230048][ T8660] kasan_report_invalid_free+0x58/0x130 [ 39.235568][ T8660] ____kasan_slab_free+0x14b/0x170 [ 39.240661][ T8660] __kasan_slab_free+0x11/0x20 [ 39.245400][ T8660] slab_free_freelist_hook+0xcc/0x1a0 [ 39.250746][ T8660] ? bitmap_free+0x15/0x20 [ 39.255134][ T8660] kfree+0xd5/0x320 [ 39.258917][ T8660] bitmap_free+0x15/0x20 [ 39.263133][ T8660] packet_set_ring+0x17f1/0x25c0 [ 39.268045][ T8660] ? __rcu_read_lock+0x50/0x50 [ 39.272783][ T8660] ? avc_has_perm_noaudit+0x358/0x4d0 [ 39.278126][ T8660] ? packet_mmap+0x5a0/0x5a0 [ 39.282691][ T8660] ? lock_sock_nested+0x272/0x310 [ 39.287689][ T8660] ? sock_def_destruct+0x10/0x10 [ 39.292605][ T8660] ? check_stack_object+0xf7/0x130 [ 39.297695][ T8660] ? __kasan_check_write+0x14/0x20 [ 39.302782][ T8660] ? _copy_from_user+0x93/0xd0 [ 39.307527][ T8660] packet_setsockopt+0x12f2/0x49d0 [ 39.312611][ T8660] ? avc_has_perm+0x173/0x270 [ 39.317261][ T8660] ? packet_ioctl+0x230/0x230 [ 39.322346][ T8660] ? selinux_socket_setsockopt+0x25c/0x360 [ 39.328124][ T8660] ? selinux_socket_getsockopt+0x340/0x340 [ 39.333904][ T8660] ? __fget_files+0x39e/0x3d0 [ 39.338556][ T8660] ? security_socket_setsockopt+0xb0/0xd0 [ 39.344250][ T8660] ? packet_ioctl+0x230/0x230 [ 39.348905][ T8660] __sys_setsockopt+0x4e1/0x870 [ 39.353728][ T8660] ? __ia32_sys_recv+0xb0/0xb0 [ 39.358466][ T8660] ? __fpregs_load_activate+0x1e7/0x370 [ 39.363991][ T8660] ? debug_smp_processor_id+0x1c/0x20 [ 39.369357][ T8660] __x64_sys_setsockopt+0xbf/0xd0 [ 39.374370][ T8660] do_syscall_64+0x31/0x70 [ 39.378798][ T8660] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 39.384668][ T8660] RIP: 0033:0x7f4b276cba19 [ 39.389066][ T8660] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 39.408834][ T8660] RSP: 002b:00007f4b2765c318 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 39.417230][ T8660] RAX: ffffffffffffffda RBX: 00007f4b277533f8 RCX: 00007f4b276cba19 [ 39.425177][ T8660] RDX: 0000000000000005 RSI: 0000000000000107 RDI: 0000000000000003 [ 39.433221][ T8660] RBP: 00007f4b277533f0 R08: 000000000000001c R09: 0000000000000000 [ 39.441170][ T8660] R10: 00000000200000c0 R11: 0000000000000246 R12: 00007f4b27721074 [ 39.449204][ T8660] R13: 00007fff8b9af4af R14: 00007f4b2765c400 R15: 0000000000022000 [ 39.457151][ T8660] [ 39.459454][ T8660] Allocated by task 8658: [ 39.463763][ T8660] ____kasan_kmalloc+0xdc/0x110 [ 39.468588][ T8660] __kasan_kmalloc+0x9/0x10 [ 39.473062][ T8660] __kmalloc+0x22a/0x3d0 [ 39.477279][ T8660] packet_set_ring+0x6b9/0x25c0 [ 39.482104][ T8660] packet_setsockopt+0x12f2/0x49d0 [ 39.487190][ T8660] __sys_setsockopt+0x4e1/0x870 [ 39.492014][ T8660] __x64_sys_setsockopt+0xbf/0xd0 [ 39.497024][ T8660] do_syscall_64+0x31/0x70 [ 39.501428][ T8660] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 39.507289][ T8660] [ 39.509593][ T8660] Freed by task 8658: [ 39.513554][ T8660] kasan_set_track+0x4c/0x80 [ 39.518119][ T8660] kasan_set_free_info+0x23/0x40 [ 39.523033][ T8660] ____kasan_slab_free+0x133/0x170 [ 39.528117][ T8660] __kasan_slab_free+0x11/0x20 [ 39.532860][ T8660] slab_free_freelist_hook+0xcc/0x1a0 [ 39.538205][ T8660] kfree+0xd5/0x320 [ 39.541988][ T8660] packet_set_ring+0x191b/0x25c0 [ 39.546900][ T8660] packet_setsockopt+0x12f2/0x49d0 [ 39.551987][ T8660] __sys_setsockopt+0x4e1/0x870 [ 39.556813][ T8660] __x64_sys_setsockopt+0xbf/0xd0 [ 39.561817][ T8660] do_syscall_64+0x31/0x70 [ 39.566213][ T8660] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 39.572082][ T8660] [ 39.574390][ T8660] The buggy address belongs to the object at ffff88811a62de80 [ 39.574390][ T8660] which belongs to the cache kmalloc-64 of size 64 [ 39.588243][ T8660] The buggy address is located 0 bytes inside of [ 39.588243][ T8660] 64-byte region [ffff88811a62de80, ffff88811a62dec0) [ 39.601221][ T8660] The buggy address belongs to the page: [ 39.606834][ T8660] page:ffffea0004698b40 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11a62d [ 39.617041][ T8660] flags: 0x8000000000000200(slab) [ 39.622043][ T8660] raw: 8000000000000200 dead000000000100 dead000000000122 ffff888100043800 [ 39.630598][ T8660] raw: 0000000000000000 0000000080200020 00000001ffffffff 0000000000000000 [ 39.639149][ T8660] page dumped because: kasan: bad access detected [ 39.645530][ T8660] page_owner tracks the page as allocated [ 39.651229][ T8660] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 8619, ts 39135398155, free_ts 39131305737 [ 39.667251][ T8660] get_page_from_freelist+0xa74/0xa90 [ 39.672593][ T8660] __alloc_pages_nodemask+0x3c8/0x820 [ 39.678460][ T8660] allocate_slab+0x6b/0x350 [ 39.682938][ T8660] ___slab_alloc+0x143/0x2f0 [ 39.687502][ T8660] __kmalloc+0x2af/0x3d0 [ 39.691717][ T8660] __vmalloc_node_range+0x28d/0x750 [ 39.696893][ T8660] dup_task_struct+0x6e6/0xde0 [ 39.701632][ T8660] copy_process+0x665/0x5340 [ 39.706193][ T8660] kernel_clone+0x21f/0x9a0 [ 39.710668][ T8660] __x64_sys_clone+0x258/0x2d0 [ 39.715408][ T8660] do_syscall_64+0x31/0x70 [ 39.719801][ T8660] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 39.725659][ T8660] page last free stack trace: [ 39.730308][ T8660] free_pcp_prepare+0x18f/0x1c0 [ 39.735130][ T8660] __free_pages+0x2e3/0x4a0 [ 39.739606][ T8660] __vunmap+0x856/0x980 [ 39.743736][ T8660] free_work+0x66/0x90 [ 39.747778][ T8660] process_one_work+0x6b4/0xfb0 [ 39.752599][ T8660] worker_thread+0xb15/0x1600 [ 39.757245][ T8660] kthread+0x371/0x390 [ 39.761289][ T8660] ret_from_fork+0x1f/0x30 [ 39.765672][ T8660] [ 39.767975][ T8660] Memory state around the buggy address: [ 39.773580][ T8660] ffff88811a62dd80: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 39.781616][ T8660] ffff88811a62de00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 39.789651][ T8660] >ffff88811a62de80: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 39.797685][ T8660] ^ executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 39.801726][ T8660] ffff88811a62df00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 39.809759][ T8660] ffff88811a62df80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 39.817791][ T8660] ================================================================== [ 39.825827][ T8660] Disabling lock debugging due to kernel taint executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 41.613320][T13899] ================================================================== [ 41.621416][T13899] BUG: KASAN: double-free or invalid-free in kfree+0xd5/0x320 [ 41.628846][T13899] [ 41.631157][T13899] CPU: 0 PID: 13899 Comm: syz-executor502 Tainted: G B 5.10.84-syzkaller-00439-ge2aed161fc26 #0 [ 41.642837][T13899] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.652882][T13899] Call Trace: [ 41.656151][T13899] dump_stack_lvl+0x1e2/0x24b [ 41.660802][T13899] ? show_regs_print_info+0x18/0x18 [ 41.665986][T13899] ? devkmsg_release+0x127/0x127 [ 41.670911][T13899] ? kfree+0xd5/0x320 [ 41.674876][T13899] print_address_description+0x8d/0x3d0 [ 41.680393][T13899] ? kfree+0xd5/0x320 [ 41.684353][T13899] ? kfree+0xd5/0x320 [ 41.688313][T13899] kasan_report_invalid_free+0x58/0x130 [ 41.693828][T13899] ____kasan_slab_free+0x14b/0x170 [ 41.698909][T13899] __kasan_slab_free+0x11/0x20 [ 41.703643][T13899] slab_free_freelist_hook+0xcc/0x1a0 [ 41.708986][T13899] ? bitmap_free+0x15/0x20 [ 41.713374][T13899] kfree+0xd5/0x320 [ 41.717163][T13899] bitmap_free+0x15/0x20 [ 41.721390][T13899] packet_set_ring+0x17f1/0x25c0 [ 41.726316][T13899] ? __rcu_read_lock+0x50/0x50 [ 41.731067][T13899] ? avc_has_perm_noaudit+0x358/0x4d0 [ 41.736417][T13899] ? packet_mmap+0x5a0/0x5a0 [ 41.740992][T13899] ? lock_sock_nested+0x272/0x310 [ 41.746019][T13899] ? sock_def_destruct+0x10/0x10 [ 41.751023][T13899] ? check_stack_object+0xf7/0x130 [ 41.756111][T13899] ? __kasan_check_write+0x14/0x20 [ 41.761199][T13899] ? _copy_from_user+0x93/0xd0 [ 41.765936][T13899] packet_setsockopt+0x12f2/0x49d0 [ 41.771021][T13899] ? avc_has_perm+0x173/0x270 [ 41.775670][T13899] ? packet_ioctl+0x230/0x230 [ 41.780326][T13899] ? selinux_socket_setsockopt+0x25c/0x360 [ 41.786126][T13899] ? selinux_socket_getsockopt+0x340/0x340 [ 41.791910][T13899] ? __fget_files+0x39e/0x3d0 [ 41.796560][T13899] ? security_socket_setsockopt+0xb0/0xd0 [ 41.802251][T13899] ? packet_ioctl+0x230/0x230 [ 41.806899][T13899] __sys_setsockopt+0x4e1/0x870 [ 41.811725][T13899] ? __ia32_sys_recv+0xb0/0xb0 [ 41.816621][T13899] ? __fpregs_load_activate+0x1e7/0x370 [ 41.822152][T13899] ? debug_smp_processor_id+0x1c/0x20 [ 41.827512][T13899] __x64_sys_setsockopt+0xbf/0xd0 [ 41.832517][T13899] do_syscall_64+0x31/0x70 [ 41.836913][T13899] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 41.842790][T13899] RIP: 0033:0x7f4b276cba19 [ 41.847191][T13899] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 41.866872][T13899] RSP: 002b:00007f4b2765c318 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 41.875318][T13899] RAX: ffffffffffffffda RBX: 00007f4b277533f8 RCX: 00007f4b276cba19 [ 41.883285][T13899] RDX: 0000000000000005 RSI: 0000000000000107 RDI: 0000000000000003 [ 41.891257][T13899] RBP: 00007f4b277533f0 R08: 000000000000001c R09: 0000000000000000 [ 41.899212][T13899] R10: 00000000200000c0 R11: 0000000000000246 R12: 00007f4b27721074 [ 41.907160][T13899] R13: 00007fff8b9af4af R14: 00007f4b2765c400 R15: 0000000000022000 [ 41.915111][T13899] [ 41.917420][T13899] Allocated by task 13891: [ 41.921824][T13899] ____kasan_kmalloc+0xdc/0x110 [ 41.926651][T13899] __kasan_kmalloc+0x9/0x10 [ 41.931127][T13899] __kmalloc+0x22a/0x3d0 [ 41.935347][T13899] packet_set_ring+0x6b9/0x25c0 [ 41.940170][T13899] packet_setsockopt+0x12f2/0x49d0 [ 41.945261][T13899] __sys_setsockopt+0x4e1/0x870 [ 41.950085][T13899] __x64_sys_setsockopt+0xbf/0xd0 [ 41.955085][T13899] do_syscall_64+0x31/0x70 [ 41.959476][T13899] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 41.965335][T13899] [ 41.967637][T13899] Freed by task 13891: [ 41.971679][T13899] kasan_set_track+0x4c/0x80 [ 41.976248][T13899] kasan_set_free_info+0x23/0x40 [ 41.981167][T13899] ____kasan_slab_free+0x133/0x170 [ 41.986254][T13899] __kasan_slab_free+0x11/0x20 [ 41.990995][T13899] slab_free_freelist_hook+0xcc/0x1a0 [ 41.996343][T13899] kfree+0xd5/0x320 [ 42.000127][T13899] packet_set_ring+0x191b/0x25c0 [ 42.005035][T13899] packet_setsockopt+0x12f2/0x49d0 [ 42.010118][T13899] __sys_setsockopt+0x4e1/0x870 [ 42.014944][T13899] __x64_sys_setsockopt+0xbf/0xd0 [ 42.020028][T13899] do_syscall_64+0x31/0x70 [ 42.024419][T13899] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 42.030278][T13899] [ 42.032583][T13899] The buggy address belongs to the object at ffff888115064a00 [ 42.032583][T13899] which belongs to the cache kmalloc-64 of size 64 [ 42.046435][T13899] The buggy address is located 0 bytes inside of [ 42.046435][T13899] 64-byte region [ffff888115064a00, ffff888115064a40) [ 42.059413][T13899] The buggy address belongs to the page: [ 42.065022][T13899] page:ffffea0004541900 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x115064 [ 42.075229][T13899] flags: 0x8000000000000200(slab) [ 42.080242][T13899] raw: 8000000000000200 dead000000000100 dead000000000122 ffff888100043800 [ 42.088802][T13899] raw: 0000000000000000 0000000000200020 00000001ffffffff 0000000000000000 [ 42.097353][T13899] page dumped because: kasan: bad access detected [ 42.103911][T13899] page_owner tracks the page as allocated [ 42.109606][T13899] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 13818, ts 41586514005, free_ts 41586409055 [ 42.125716][T13899] get_page_from_freelist+0xa74/0xa90 [ 42.131061][T13899] __alloc_pages_nodemask+0x3c8/0x820 [ 42.137445][T13899] allocate_slab+0x6b/0x350 [ 42.141922][T13899] ___slab_alloc+0x143/0x2f0 [ 42.146484][T13899] __kmalloc+0x2af/0x3d0 [ 42.150697][T13899] packet_set_ring+0x6b9/0x25c0 [ 42.155951][T13899] packet_setsockopt+0x12f2/0x49d0 [ 42.161032][T13899] __sys_setsockopt+0x4e1/0x870 [ 42.165854][T13899] __x64_sys_setsockopt+0xbf/0xd0 [ 42.170847][T13899] do_syscall_64+0x31/0x70 [ 42.175242][T13899] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 42.181099][T13899] page last free stack trace: [ 42.185746][T13899] free_pcp_prepare+0x18f/0x1c0 [ 42.190569][T13899] __free_pages+0x2e3/0x4a0 [ 42.195045][T13899] __vunmap+0x856/0x980 [ 42.199176][T13899] free_work+0x66/0x90 [ 42.203217][T13899] process_one_work+0x6b4/0xfb0 [ 42.208046][T13899] worker_thread+0xb15/0x1600 [ 42.212694][T13899] kthread+0x371/0x390 [ 42.216735][T13899] ret_from_fork+0x1f/0x30 [ 42.221117][T13899] [ 42.223419][T13899] Memory state around the buggy address: [ 42.229023][T13899] ffff888115064900: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 42.237052][T13899] ffff888115064980: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 42.245083][T13899] >ffff888115064a00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 42.253111][T13899] ^ [ 42.257150][T13899] ffff888115064a80: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 42.265186][T13899] ffff888115064b00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 42.273213][T13899] ================================================================== executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 43.035731][T16070] ================================================================== [ 43.043824][T16070] BUG: KASAN: double-free or invalid-free in kfree+0xd5/0x320 [ 43.051247][T16070] [ 43.053553][T16070] CPU: 0 PID: 16070 Comm: syz-executor502 Tainted: G B 5.10.84-syzkaller-00439-ge2aed161fc26 #0 [ 43.065231][T16070] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.075256][T16070] Call Trace: [ 43.078527][T16070] dump_stack_lvl+0x1e2/0x24b [ 43.083177][T16070] ? show_regs_print_info+0x18/0x18 [ 43.088351][T16070] ? devkmsg_release+0x127/0x127 [ 43.093269][T16070] ? kfree+0xd5/0x320 [ 43.097225][T16070] print_address_description+0x8d/0x3d0 [ 43.102738][T16070] ? slab_free_freelist_hook+0xcc/0x1a0 [ 43.108258][T16070] ? kfree+0xd5/0x320 [ 43.112217][T16070] ? kfree+0xd5/0x320 [ 43.116169][T16070] kasan_report_invalid_free+0x58/0x130 [ 43.121685][T16070] ____kasan_slab_free+0x14b/0x170 [ 43.126767][T16070] __kasan_slab_free+0x11/0x20 [ 43.131517][T16070] slab_free_freelist_hook+0xcc/0x1a0 [ 43.136857][T16070] ? bitmap_free+0x15/0x20 [ 43.141249][T16070] kfree+0xd5/0x320 [ 43.145034][T16070] bitmap_free+0x15/0x20 [ 43.149252][T16070] packet_set_ring+0x17f1/0x25c0 [ 43.154160][T16070] ? __rcu_read_lock+0x50/0x50 [ 43.158893][T16070] ? avc_has_perm_noaudit+0x358/0x4d0 [ 43.164241][T16070] ? packet_mmap+0x5a0/0x5a0 [ 43.168804][T16070] ? lock_sock_nested+0x272/0x310 [ 43.173800][T16070] ? sock_def_destruct+0x10/0x10 [ 43.178707][T16070] ? check_stack_object+0xf7/0x130 [ 43.183791][T16070] ? __kasan_check_write+0x14/0x20 [ 43.188871][T16070] ? _copy_from_user+0x93/0xd0 [ 43.193604][T16070] packet_setsockopt+0x12f2/0x49d0 [ 43.198683][T16070] ? avc_has_perm+0x173/0x270 [ 43.203349][T16070] ? packet_ioctl+0x230/0x230 [ 43.207996][T16070] ? selinux_socket_setsockopt+0x25c/0x360 [ 43.213778][T16070] ? selinux_socket_getsockopt+0x340/0x340 [ 43.219562][T16070] ? __fget_files+0x39e/0x3d0 [ 43.224207][T16070] ? security_socket_setsockopt+0xb0/0xd0 [ 43.229931][T16070] ? packet_ioctl+0x230/0x230 [ 43.234617][T16070] __sys_setsockopt+0x4e1/0x870 [ 43.239444][T16070] ? __ia32_sys_recv+0xb0/0xb0 [ 43.244180][T16070] ? __fpregs_load_activate+0x1e7/0x370 [ 43.249705][T16070] ? debug_smp_processor_id+0x1c/0x20 [ 43.255051][T16070] __x64_sys_setsockopt+0xbf/0xd0 [ 43.260049][T16070] do_syscall_64+0x31/0x70 [ 43.264438][T16070] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 43.270309][T16070] RIP: 0033:0x7f4b276cba19 [ 43.274702][T16070] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 43.293078][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!! [ 43.294445][T16070] RSP: 002b:00007f4b2765c318 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 43.311653][T16070] RAX: ffffffffffffffda RBX: 00007f4b277533f8 RCX: 00007f4b276cba19 [ 43.319606][T16070] RDX: 0000000000000005 RSI: 0000000000000107 RDI: 0000000000000003 [ 43.327562][T16070] RBP: 00007f4b277533f0 R08: 000000000000001c R09: 0000000000000000 [ 43.335516][T16070] R10: 00000000200000c0 R11: 0000000000000246 R12: 00007f4b27721074 [ 43.343462][T16070] R13: 00007fff8b9af4af R14: 00007f4b2765c400 R15: 0000000000022000 [ 43.351407][T16070] [ 43.353709][T16070] Allocated by task 16060: [ 43.358101][T16070] ____kasan_kmalloc+0xdc/0x110 [ 43.362926][T16070] __kasan_kmalloc+0x9/0x10 [ 43.367415][T16070] __kmalloc+0x22a/0x3d0 [ 43.371644][T16070] packet_set_ring+0x6b9/0x25c0 [ 43.376472][T16070] packet_setsockopt+0x12f2/0x49d0 [ 43.381565][T16070] __sys_setsockopt+0x4e1/0x870 [ 43.386392][T16070] __x64_sys_setsockopt+0xbf/0xd0 [ 43.391392][T16070] do_syscall_64+0x31/0x70 [ 43.395785][T16070] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 43.401642][T16070] [ 43.403945][T16070] Freed by task 16060: [ 43.407986][T16070] kasan_set_track+0x4c/0x80 [ 43.412555][T16070] kasan_set_free_info+0x23/0x40 [ 43.417464][T16070] ____kasan_slab_free+0x133/0x170 [ 43.422545][T16070] __kasan_slab_free+0x11/0x20 [ 43.427275][T16070] slab_free_freelist_hook+0xcc/0x1a0 [ 43.432615][T16070] kfree+0xd5/0x320 [ 43.436392][T16070] packet_set_ring+0x191b/0x25c0 [ 43.441293][T16070] packet_setsockopt+0x12f2/0x49d0 [ 43.446371][T16070] __sys_setsockopt+0x4e1/0x870 [ 43.451191][T16070] __x64_sys_setsockopt+0xbf/0xd0 [ 43.456181][T16070] do_syscall_64+0x31/0x70 [ 43.460565][T16070] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 43.466419][T16070] [ 43.468721][T16070] The buggy address belongs to the object at ffff88811005a680 [ 43.468721][T16070] which belongs to the cache kmalloc-64 of size 64 [ 43.482569][T16070] The buggy address is located 0 bytes inside of [ 43.482569][T16070] 64-byte region [ffff88811005a680, ffff88811005a6c0) [ 43.495542][T16070] The buggy address belongs to the page: [ 43.501146][T16070] page:ffffea0004401680 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11005a [ 43.511347][T16070] flags: 0x8000000000000200(slab) [ 43.516344][T16070] raw: 8000000000000200 dead000000000100 dead000000000122 ffff888100043800 [ 43.524897][T16070] raw: 0000000000000000 0000000080200020 00000001ffffffff 0000000000000000 [ 43.533451][T16070] page dumped because: kasan: bad access detected [ 43.539837][T16070] page_owner tracks the page as allocated [ 43.545528][T16070] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 16048, ts 43027332505, free_ts 42755319309 [ 43.561642][T16070] get_page_from_freelist+0xa74/0xa90 [ 43.566984][T16070] __alloc_pages_nodemask+0x3c8/0x820 [ 43.572325][T16070] allocate_slab+0x6b/0x350 [ 43.576795][T16070] ___slab_alloc+0x143/0x2f0 [ 43.581350][T16070] __kmalloc+0x2af/0x3d0 [ 43.585563][T16070] packet_set_ring+0x6b9/0x25c0 [ 43.590382][T16070] packet_setsockopt+0x12f2/0x49d0 [ 43.595464][T16070] __sys_setsockopt+0x4e1/0x870 [ 43.600280][T16070] __x64_sys_setsockopt+0xbf/0xd0 [ 43.605274][T16070] do_syscall_64+0x31/0x70 [ 43.609659][T16070] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 43.615516][T16070] page last free stack trace: [ 43.620163][T16070] free_pcp_prepare+0x18f/0x1c0 [ 43.624981][T16070] __free_pages+0x2e3/0x4a0 [ 43.629452][T16070] free_pages+0x7c/0x90 [ 43.633578][T16070] kasan_depopulate_vmalloc_pte+0x6a/0x90 [ 43.639266][T16070] __apply_to_page_range+0x7f5/0xa10 [ 43.644518][T16070] apply_to_existing_page_range+0x38/0x50 [ 43.650205][T16070] kasan_release_vmalloc+0x9a/0xb0 [ 43.655285][T16070] __purge_vmap_area_lazy+0x13f0/0x1510 [ 43.660796][T16070] free_vmap_area_noflush+0x2a8/0x2f0 [ 43.666134][T16070] remove_vm_area+0x1d1/0x1f0 [ 43.670778][T16070] __vunmap+0x254/0x980 [ 43.674898][T16070] free_work+0x66/0x90 [ 43.678936][T16070] process_one_work+0x6b4/0xfb0 [ 43.683756][T16070] worker_thread+0xb15/0x1600 [ 43.688397][T16070] kthread+0x371/0x390 [ 43.692435][T16070] ret_from_fork+0x1f/0x30 [ 43.696816][T16070] [ 43.699115][T16070] Memory state around the buggy address: [ 43.704765][T16070] ffff88811005a580: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 43.712825][T16070] ffff88811005a600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 43.720860][T16070] >ffff88811005a680: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 43.728889][T16070] ^ executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 43.732928][T16070] ffff88811005a700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 43.740957][T16070] ffff88811005a780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 43.748984][T16070] ================================================================== executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 45.884397][T22375] ================================================================== [ 45.892482][T22375] BUG: KASAN: double-free or invalid-free in kfree+0xd5/0x320 [ 45.899910][T22375] [ 45.902216][T22375] CPU: 1 PID: 22375 Comm: syz-executor502 Tainted: G B 5.10.84-syzkaller-00439-ge2aed161fc26 #0 [ 45.913899][T22375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.923928][T22375] Call Trace: [ 45.927194][T22375] dump_stack_lvl+0x1e2/0x24b executing program [ 45.931846][T22375] ? show_regs_print_info+0x18/0x18 [ 45.937021][T22375] ? devkmsg_release+0x127/0x127 [ 45.941941][T22375] ? kfree+0xd5/0x320 [ 45.945904][T22375] print_address_description+0x8d/0x3d0 [ 45.951420][T22375] ? kfree+0xd5/0x320 [ 45.955371][T22375] ? kfree+0xd5/0x320 [ 45.959324][T22375] kasan_report_invalid_free+0x58/0x130 [ 45.964846][T22375] ____kasan_slab_free+0x14b/0x170 [ 45.969932][T22375] __kasan_slab_free+0x11/0x20 [ 45.974670][T22375] slab_free_freelist_hook+0xcc/0x1a0 [ 45.980011][T22375] ? bitmap_free+0x15/0x20 [ 45.984404][T22375] kfree+0xd5/0x320 [ 45.988193][T22375] bitmap_free+0x15/0x20 [ 45.992415][T22375] packet_set_ring+0x17f1/0x25c0 [ 45.997330][T22375] ? __rcu_read_lock+0x50/0x50 [ 46.002064][T22375] ? avc_has_perm_noaudit+0x358/0x4d0 [ 46.007414][T22375] ? packet_mmap+0x5a0/0x5a0 [ 46.011984][T22375] ? lock_sock_nested+0x272/0x310 [ 46.016984][T22375] ? sock_def_destruct+0x10/0x10 [ 46.021898][T22375] ? check_stack_object+0xf7/0x130 [ 46.026982][T22375] ? __kasan_check_write+0x14/0x20 [ 46.032066][T22375] ? _copy_from_user+0x93/0xd0 [ 46.036800][T22375] packet_setsockopt+0x12f2/0x49d0 [ 46.041886][T22375] ? avc_has_perm+0x173/0x270 [ 46.046543][T22375] ? packet_ioctl+0x230/0x230 [ 46.051203][T22375] ? selinux_socket_setsockopt+0x25c/0x360 [ 46.056988][T22375] ? selinux_socket_getsockopt+0x340/0x340 [ 46.062764][T22375] ? __fget_files+0x39e/0x3d0 [ 46.067416][T22375] ? security_socket_setsockopt+0xb0/0xd0 [ 46.073105][T22375] ? packet_ioctl+0x230/0x230 [ 46.077754][T22375] __sys_setsockopt+0x4e1/0x870 [ 46.082576][T22375] ? __ia32_sys_recv+0xb0/0xb0 [ 46.087307][T22375] ? __fpregs_load_activate+0x1e7/0x370 [ 46.092828][T22375] ? debug_smp_processor_id+0x1c/0x20 [ 46.098178][T22375] __x64_sys_setsockopt+0xbf/0xd0 [ 46.103171][T22375] do_syscall_64+0x31/0x70 [ 46.107559][T22375] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 46.113421][T22375] RIP: 0033:0x7f4b276cba19 [ 46.117809][T22375] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 46.137388][T22375] RSP: 002b:00007f4b2765c318 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 46.145772][T22375] RAX: ffffffffffffffda RBX: 00007f4b277533f8 RCX: 00007f4b276cba19 [ 46.153727][T22375] RDX: 0000000000000005 RSI: 0000000000000107 RDI: 0000000000000003 [ 46.161677][T22375] RBP: 00007f4b277533f0 R08: 000000000000001c R09: 0000000000000000 [ 46.169628][T22375] R10: 00000000200000c0 R11: 0000000000000246 R12: 00007f4b27721074 [ 46.177588][T22375] R13: 00007fff8b9af4af R14: 00007f4b2765c400 R15: 0000000000022000 [ 46.185538][T22375] [ 46.187839][T22375] Allocated by task 22367: [ 46.192229][T22375] ____kasan_kmalloc+0xdc/0x110 [ 46.197057][T22375] __kasan_kmalloc+0x9/0x10 [ 46.201536][T22375] __kmalloc+0x22a/0x3d0 [ 46.205750][T22375] packet_set_ring+0x6b9/0x25c0 [ 46.210572][T22375] packet_setsockopt+0x12f2/0x49d0 [ 46.215664][T22375] __sys_setsockopt+0x4e1/0x870 [ 46.220483][T22375] __x64_sys_setsockopt+0xbf/0xd0 [ 46.225474][T22375] do_syscall_64+0x31/0x70 [ 46.229861][T22375] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 46.235715][T22375] [ 46.238013][T22375] Freed by task 22367: [ 46.242052][T22375] kasan_set_track+0x4c/0x80 [ 46.246616][T22375] kasan_set_free_info+0x23/0x40 [ 46.251524][T22375] ____kasan_slab_free+0x133/0x170 [ 46.256604][T22375] __kasan_slab_free+0x11/0x20 [ 46.261333][T22375] slab_free_freelist_hook+0xcc/0x1a0 [ 46.266671][T22375] kfree+0xd5/0x320 [ 46.270449][T22375] packet_set_ring+0x191b/0x25c0 [ 46.275355][T22375] packet_setsockopt+0x12f2/0x49d0 [ 46.280434][T22375] __sys_setsockopt+0x4e1/0x870 [ 46.285253][T22375] __x64_sys_setsockopt+0xbf/0xd0 [ 46.290252][T22375] do_syscall_64+0x31/0x70 [ 46.294645][T22375] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 46.300501][T22375] [ 46.302808][T22375] The buggy address belongs to the object at ffff88810fe3df00 [ 46.302808][T22375] which belongs to the cache kmalloc-64 of size 64 [ 46.316657][T22375] The buggy address is located 0 bytes inside of [ 46.316657][T22375] 64-byte region [ffff88810fe3df00, ffff88810fe3df40) [ 46.329640][T22375] The buggy address belongs to the page: [ 46.335244][T22375] page:ffffea00043f8f40 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10fe3d [ 46.345446][T22375] flags: 0x8000000000000200(slab) [ 46.350442][T22375] raw: 8000000000000200 ffffea00043bc200 0000000700000007 ffff888100043800 [ 46.358995][T22375] raw: 0000000000000000 0000000080200020 00000001ffffffff 0000000000000000 [ 46.367546][T22375] page dumped because: kasan: bad access detected [ 46.373925][T22375] page_owner tracks the page as allocated [ 46.379615][T22375] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 172, ts 3484787816, free_ts 3484277745 [ 46.395374][T22375] get_page_from_freelist+0xa74/0xa90 [ 46.400751][T22375] __alloc_pages_nodemask+0x3c8/0x820 [ 46.406102][T22375] allocate_slab+0x6b/0x350 [ 46.410577][T22375] ___slab_alloc+0x143/0x2f0 [ 46.415132][T22375] __kmalloc+0x2af/0x3d0 [ 46.419346][T22375] kzalloc+0x21/0x30 [ 46.423210][T22375] kobject_get_path+0xb2/0x1a0 [ 46.427958][T22375] kobject_uevent_env+0x29f/0x1400 [ 46.433041][T22375] kobject_synth_uevent+0x3bf/0x900 [ 46.438329][T22375] uevent_store+0x25/0x60 [ 46.442629][T22375] dev_attr_store+0x5c/0x80 [ 46.447102][T22375] sysfs_kf_write+0x123/0x140 [ 46.451746][T22375] kernfs_fop_write_iter+0x2d0/0x410 [ 46.457002][T22375] vfs_write+0xc02/0xf20 [ 46.461215][T22375] ksys_write+0x186/0x2b0 [ 46.465512][T22375] __x64_sys_write+0x7b/0x90 [ 46.470074][T22375] page last free stack trace: [ 46.474729][T22375] free_pcp_prepare+0x18f/0x1c0 [ 46.479548][T22375] __free_pages+0x2e3/0x4a0 [ 46.484019][T22375] free_pages+0x7c/0x90 [ 46.488159][T22375] inode_doinit_with_dentry+0xb4e/0x11f0 [ 46.493761][T22375] selinux_d_instantiate+0x27/0x40 [ 46.498840][T22375] security_d_instantiate+0xa5/0x100 [ 46.504091][T22375] d_splice_alias+0x74/0x590 [ 46.508664][T22375] kernfs_iop_lookup+0x18c/0x210 [ 46.513569][T22375] __lookup_slow+0x2b3/0x400 [ 46.518125][T22375] walk_component+0x516/0x790 [ 46.522768][T22375] path_lookupat+0x19d/0x6c0 [ 46.527327][T22375] filename_lookup+0x23f/0x6c0 [ 46.532071][T22375] user_path_at_empty+0x40/0x50 [ 46.536896][T22375] vfs_statx+0x10a/0x3f0 [ 46.541113][T22375] __se_sys_newfstatat+0xc8/0x760 [ 46.546113][T22375] __x64_sys_newfstatat+0x9b/0xb0 [ 46.551113][T22375] [ 46.553411][T22375] Memory state around the buggy address: [ 46.559013][T22375] ffff88810fe3de00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 46.567046][T22375] ffff88810fe3de80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 46.575079][T22375] >ffff88810fe3df00: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 46.583109][T22375] ^ executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 46.587148][T22375] ffff88810fe3df80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 46.595178][T22375] ffff88810fe3e000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 46.603204][T22375] ================================================================== executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 48.774532][T28716] ================================================================== [ 48.782625][T28716] BUG: KASAN: double-free or invalid-free in kfree+0xd5/0x320 [ 48.790072][T28716] [ 48.792388][T28716] CPU: 1 PID: 28716 Comm: syz-executor502 Tainted: G B 5.10.84-syzkaller-00439-ge2aed161fc26 #0 [ 48.804082][T28716] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.814119][T28716] Call Trace: [ 48.817398][T28716] dump_stack_lvl+0x1e2/0x24b [ 48.822063][T28716] ? show_regs_print_info+0x18/0x18 [ 48.827244][T28716] ? devkmsg_release+0x127/0x127 [ 48.832168][T28716] ? kfree+0xd5/0x320 [ 48.836127][T28716] print_address_description+0x8d/0x3d0 [ 48.841648][T28716] ? slab_free_freelist_hook+0xcc/0x1a0 [ 48.847169][T28716] ? kfree+0xd5/0x320 [ 48.851125][T28716] ? kfree+0xd5/0x320 [ 48.855078][T28716] kasan_report_invalid_free+0x58/0x130 [ 48.860601][T28716] ____kasan_slab_free+0x14b/0x170 [ 48.865685][T28716] __kasan_slab_free+0x11/0x20 [ 48.870422][T28716] slab_free_freelist_hook+0xcc/0x1a0 [ 48.875764][T28716] ? bitmap_free+0x15/0x20 [ 48.880153][T28716] kfree+0xd5/0x320 [ 48.883935][T28716] bitmap_free+0x15/0x20 [ 48.888151][T28716] packet_set_ring+0x17f1/0x25c0 [ 48.893065][T28716] ? __rcu_read_lock+0x50/0x50 [ 48.897809][T28716] ? avc_has_perm_noaudit+0x358/0x4d0 [ 48.903152][T28716] ? packet_mmap+0x5a0/0x5a0 [ 48.907711][T28716] ? lock_sock_nested+0x272/0x310 [ 48.912706][T28716] ? sock_def_destruct+0x10/0x10 [ 48.917614][T28716] ? check_stack_object+0xf7/0x130 [ 48.922693][T28716] ? __kasan_check_write+0x14/0x20 [ 48.927777][T28716] ? _copy_from_user+0x93/0xd0 [ 48.932518][T28716] packet_setsockopt+0x12f2/0x49d0 [ 48.937603][T28716] ? avc_has_perm+0x173/0x270 [ 48.942246][T28716] ? packet_ioctl+0x230/0x230 [ 48.946889][T28716] ? selinux_socket_setsockopt+0x25c/0x360 [ 48.952666][T28716] ? selinux_socket_getsockopt+0x340/0x340 [ 48.958449][T28716] ? __fget_files+0x39e/0x3d0 [ 48.963097][T28716] ? security_socket_setsockopt+0xb0/0xd0 [ 48.968785][T28716] ? packet_ioctl+0x230/0x230 [ 48.973432][T28716] __sys_setsockopt+0x4e1/0x870 [ 48.978250][T28716] ? __ia32_sys_recv+0xb0/0xb0 [ 48.982980][T28716] ? __fpregs_load_activate+0x1e7/0x370 [ 48.988500][T28716] ? debug_smp_processor_id+0x1c/0x20 [ 48.993844][T28716] __x64_sys_setsockopt+0xbf/0xd0 [ 48.998839][T28716] do_syscall_64+0x31/0x70 [ 49.003225][T28716] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 49.009086][T28716] RIP: 0033:0x7f4b276cba19 [ 49.013475][T28716] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 49.033058][T28716] RSP: 002b:00007f4b2765c318 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 49.041441][T28716] RAX: ffffffffffffffda RBX: 00007f4b277533f8 RCX: 00007f4b276cba19 [ 49.049383][T28716] RDX: 0000000000000005 RSI: 0000000000000107 RDI: 0000000000000003 [ 49.057322][T28716] RBP: 00007f4b277533f0 R08: 000000000000001c R09: 0000000000000000 [ 49.065271][T28716] R10: 00000000200000c0 R11: 0000000000000246 R12: 00007f4b27721074 [ 49.073218][T28716] R13: 00007fff8b9af4af R14: 00007f4b2765c400 R15: 0000000000022000 [ 49.081161][T28716] [ 49.083462][T28716] Allocated by task 28706: [ 49.087849][T28716] ____kasan_kmalloc+0xdc/0x110 [ 49.092675][T28716] __kasan_kmalloc+0x9/0x10 [ 49.097149][T28716] __kmalloc+0x22a/0x3d0 [ 49.101359][T28716] packet_set_ring+0x6b9/0x25c0 [ 49.106180][T28716] packet_setsockopt+0x12f2/0x49d0 [ 49.111260][T28716] __sys_setsockopt+0x4e1/0x870 [ 49.116083][T28716] __x64_sys_setsockopt+0xbf/0xd0 [ 49.121081][T28716] do_syscall_64+0x31/0x70 [ 49.125470][T28716] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 49.131332][T28716] [ 49.133632][T28716] Freed by task 28706: [ 49.137670][T28716] kasan_set_track+0x4c/0x80 [ 49.142228][T28716] kasan_set_free_info+0x23/0x40 [ 49.147133][T28716] ____kasan_slab_free+0x133/0x170 [ 49.152210][T28716] __kasan_slab_free+0x11/0x20 [ 49.156941][T28716] slab_free_freelist_hook+0xcc/0x1a0 [ 49.162280][T28716] kfree+0xd5/0x320 [ 49.166060][T28716] packet_set_ring+0x191b/0x25c0 [ 49.170967][T28716] packet_setsockopt+0x12f2/0x49d0