[ 35.724544] audit: type=1800 audit(1547102757.017:26): pid=7470 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 35.762378] audit: type=1800 audit(1547102757.017:27): pid=7470 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 35.786789] audit: type=1800 audit(1547102757.017:28): pid=7470 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 36.567703] audit: type=1800 audit(1547102757.897:29): pid=7470 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.35' (ECDSA) to the list of known hosts. syzkaller login: [ 47.727963] IPVS: ftp: loaded support on port[0] = 21 [ 47.728259] IPVS: ftp: loaded support on port[0] = 21 [ 47.745501] IPVS: ftp: loaded support on port[0] = 21 [ 47.747473] IPVS: ftp: loaded support on port[0] = 21 [ 47.752911] IPVS: ftp: loaded support on port[0] = 21 [ 47.760023] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 61.757388] ================================================================== [ 61.764979] BUG: KASAN: use-after-free in __xfrm_policy_unlink+0x9ec/0xa00 [ 61.772019] Write of size 8 at addr ffff888093aaa950 by task syz-executor940/12110 [ 61.779716] [ 61.781351] CPU: 0 PID: 12110 Comm: syz-executor940 Not tainted 5.0.0-rc1+ #17 [ 61.788832] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.798176] Call Trace: [ 61.800778] dump_stack+0x1db/0x2d0 executing program executing program executing program executing program executing program executing program [ 61.804595] ? dump_stack_print_info.cold+0x20/0x20 [ 61.809711] ? find_held_lock+0x35/0x120 [ 61.813797] ? __xfrm_policy_unlink+0x9ec/0xa00 [ 61.818492] print_address_description.cold+0x7c/0x20d [ 61.823767] ? __xfrm_policy_unlink+0x9ec/0xa00 [ 61.828442] ? __xfrm_policy_unlink+0x9ec/0xa00 [ 61.833118] kasan_report.cold+0x1b/0x40 [ 61.837197] ? __xfrm_policy_unlink+0x9ec/0xa00 [ 61.841882] __asan_report_store8_noabort+0x17/0x20 [ 61.846893] __xfrm_policy_unlink+0x9ec/0xa00 [ 61.851390] ? xfrm_policy_walk_done+0x360/0x360 [ 61.856146] ? __fib6_clean_all+0x300/0x430 [ 61.860464] ? xfrm_policy_byid+0x4a0/0x4a0 [ 61.864799] ? fib6_clean_tree+0x340/0x340 [ 61.869031] ? ipv6_route_yield+0x220/0x220 [ 61.873353] ? xfrm_pol_inexact_addr_use_any_list+0x1f0/0x1f0 [ 61.879245] xfrm_policy_insert+0x223/0x910 [ 61.883587] ? __fib6_clean_all+0x430/0x430 [ 61.887908] ? xfrm_policy_inexact_insert+0xda0/0xda0 [ 61.893103] ? copy_from_user_policy+0x110/0x2b0 [ 61.897878] ? xfrm_policy_construct+0x471/0x660 [ 61.902632] xfrm_add_policy+0x2a1/0x6c0 [ 61.906694] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 61.912238] ? xfrm_policy_construct+0x660/0x660 [ 61.916996] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 61.922526] ? __nla_parse+0x12a/0x340 [ 61.926417] ? nla_parse+0x45/0x60 [ 61.929955] ? xfrm_policy_construct+0x660/0x660 [ 61.934704] xfrm_user_rcv_msg+0x458/0x8d0 [ 61.938936] ? xfrm_dump_sa_done+0xf0/0xf0 [ 61.943161] ? xfrm_netlink_rcv+0x61/0x90 [ 61.947310] ? __mutex_lock+0x622/0x1670 [ 61.951436] netlink_rcv_skb+0x17d/0x410 [ 61.955497] ? xfrm_dump_sa_done+0xf0/0xf0 [ 61.959741] ? netlink_ack+0xba0/0xba0 [ 61.963626] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 61.968916] xfrm_netlink_rcv+0x70/0x90 [ 61.972888] netlink_unicast+0x574/0x770 [ 61.976956] ? netlink_attachskb+0x980/0x980 [ 61.981361] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 61.986899] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 61.992010] netlink_sendmsg+0xa05/0xf90 [ 61.996072] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 62.001628] ? netlink_unicast+0x770/0x770 [ 62.005886] ? smack_socket_sendmsg+0xb1/0x1a0 [ 62.010470] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 62.016011] ? security_socket_sendmsg+0x93/0xc0 [ 62.020765] ? netlink_unicast+0x770/0x770 [ 62.025012] sock_sendmsg+0xdd/0x130 [ 62.028741] ___sys_sendmsg+0x7ec/0x910 [ 62.032721] ? copy_msghdr_from_user+0x570/0x570 [ 62.037477] ? find_held_lock+0x35/0x120 [ 62.041548] ? __fd_install+0x2a0/0x8c0 [ 62.045522] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 62.051075] ? lock_downgrade+0x910/0x910 [ 62.055239] ? kasan_check_read+0x11/0x20 [ 62.059388] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 62.064924] ? __fget_light+0x2db/0x420 [ 62.068985] ? fget_raw+0x20/0x20 [ 62.072440] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 62.078072] ? __fdget+0x1b/0x20 [ 62.081435] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 62.086969] ? sockfd_lookup_light+0xc2/0x160 [ 62.091463] __sys_sendmsg+0x112/0x270 [ 62.095350] ? __ia32_sys_shutdown+0x80/0x80 [ 62.099852] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 62.105212] ? trace_hardirqs_off_caller+0x300/0x300 [ 62.110335] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 62.115193] __x64_sys_sendmsg+0x78/0xb0 [ 62.119259] do_syscall_64+0x1a3/0x800 [ 62.123159] ? syscall_return_slowpath+0x5f0/0x5f0 [ 62.128090] ? prepare_exit_to_usermode+0x232/0x3b0 [ 62.133120] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 62.137981] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 62.143173] RIP: 0033:0x4420c9 [ 62.146375] Code: e8 6c e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 cb 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 62.165529] RSP: 002b:00007ffc7b6cee58 EFLAGS: 00000217 ORIG_RAX: 000000000000002e [ 62.173235] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004420c9 [ 62.180494] RDX: 0000000000000000 RSI: 000000002014f000 RDI: 0000000000000004 [ 62.187757] RBP: 000000000000f0f7 R08: 0000000000000000 R09: 0000000000000000 [ 62.195031] R10: 0000000000000000 R11: 0000000000000217 R12: 0000000000000000 [ 62.202405] R13: 0000000000402fb0 R14: 00000000006ce440 R15: 0000000000000000 [ 62.209801] [ 62.211420] Allocated by task 12097: [ 62.215148] save_stack+0x45/0xd0 [ 62.218699] __kasan_kmalloc.constprop.0+0xcf/0xe0 [ 62.223635] kasan_kmalloc+0x9/0x10 [ 62.227294] kmem_cache_alloc_trace+0x151/0x760 [ 62.231958] xfrm_policy_alloc+0xfb/0x530 [ 62.236131] xfrm_policy_construct+0x30/0x660 [ 62.240623] xfrm_add_policy+0x20a/0x6c0 [ 62.244680] xfrm_user_rcv_msg+0x458/0x8d0 [ 62.248920] netlink_rcv_skb+0x17d/0x410 [ 62.252980] xfrm_netlink_rcv+0x70/0x90 [ 62.256955] netlink_unicast+0x574/0x770 [ 62.261018] netlink_sendmsg+0xa05/0xf90 [ 62.265092] sock_sendmsg+0xdd/0x130 [ 62.268814] ___sys_sendmsg+0x7ec/0x910 [ 62.272801] __sys_sendmsg+0x112/0x270 [ 62.276690] __x64_sys_sendmsg+0x78/0xb0 [ 62.280753] do_syscall_64+0x1a3/0x800 [ 62.284672] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 62.289865] [ 62.291485] Freed by task 16: [ 62.294594] save_stack+0x45/0xd0 [ 62.298049] __kasan_slab_free+0x102/0x150 [ 62.302807] kasan_slab_free+0xe/0x10 [ 62.306606] kfree+0xcf/0x230 [ 62.309714] xfrm_policy_destroy_rcu+0x48/0x60 [ 62.314315] rcu_process_callbacks+0xc4a/0x1680 [ 62.319085] __do_softirq+0x30b/0xb11 [ 62.322877] [ 62.324506] The buggy address belongs to the object at ffff888093aaa940 [ 62.324506] which belongs to the cache kmalloc-1k of size 1024 [ 62.337161] The buggy address is located 16 bytes inside of [ 62.337161] 1024-byte region [ffff888093aaa940, ffff888093aaad40) [ 62.349132] The buggy address belongs to the page: [ 62.354158] page:ffffea00024eaa80 count:1 mapcount:0 mapping:ffff88812c3f0ac0 index:0x0 compound_mapcount: 0 [ 62.364313] flags: 0x1fffc0000010200(slab|head) [ 62.368979] raw: 01fffc0000010200 ffffea0002324008 ffffea0002a48808 ffff88812c3f0ac0 [ 62.376853] raw: 0000000000000000 ffff888093aaa040 0000000100000007 0000000000000000 [ 62.384720] page dumped because: kasan: bad access detected [ 62.390421] [ 62.392049] Memory state around the buggy address: [ 62.396974] ffff888093aaa800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 62.404331] ffff888093aaa880: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 62.411685] >ffff888093aaa900: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb [ 62.419034] ^ [ 62.425003] ffff888093aaa980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 62.432444] ffff888093aaaa00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 62.439929] ================================================================== [ 62.447280] Disabling lock debugging due to kernel taint [ 62.452800] Kernel panic - not syncing: panic_on_warn set ... [ 62.458809] CPU: 0 PID: 12110 Comm: syz-executor940 Tainted: G B 5.0.0-rc1+ #17 [ 62.467540] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.476876] Call Trace: [ 62.479464] dump_stack+0x1db/0x2d0 [ 62.483095] ? dump_stack_print_info.cold+0x20/0x20 [ 62.488119] panic+0x2cb/0x65c [ 62.491302] ? add_taint.cold+0x16/0x16 [ 62.495274] ? trace_hardirqs_on+0xb4/0x310 [ 62.499592] ? trace_hardirqs_on+0xb4/0x310 [ 62.503929] ? __xfrm_policy_unlink+0x9ec/0xa00 [ 62.508590] end_report