./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3996173772 <...> [ 3.487141][ T24] audit: type=1400 audit(1745208026.290:9): avc: denied { append open } for pid=76 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 3.495771][ T24] audit: type=1400 audit(1745208026.290:10): avc: denied { getattr } for pid=76 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 3.664056][ T93] udevd[93]: starting version 3.2.11 [ 3.691752][ T94] udevd[94]: starting eudev-3.2.11 [ 13.676397][ T24] kauditd_printk_skb: 50 callbacks suppressed [ 13.676409][ T24] audit: type=1400 audit(1745208036.510:61): avc: denied { transition } for pid=220 comm="sshd" path="/bin/sh" dev="sda1" ino=89 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 13.685525][ T24] audit: type=1400 audit(1745208036.510:62): avc: denied { noatsecure } for pid=220 comm="sshd" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 13.691751][ T24] audit: type=1400 audit(1745208036.510:63): avc: denied { write } for pid=220 comm="sh" path="pipe:[12935]" dev="pipefs" ino=12935 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 13.705142][ T24] audit: type=1400 audit(1745208036.510:64): avc: denied { rlimitinh } for pid=220 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 13.724046][ T24] audit: type=1400 audit(1745208036.510:65): avc: denied { siginh } for pid=220 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 Warning: Permanently added '10.128.0.254' (ED25519) to the list of known hosts. execve("./syz-executor3996173772", ["./syz-executor3996173772"], 0x7ffe101ac700 /* 10 vars */) = 0 brk(NULL) = 0x555560431000 brk(0x555560431d00) = 0x555560431d00 arch_prctl(ARCH_SET_FS, 0x555560431380) = 0 set_tid_address(0x555560431650) = 289 set_robust_list(0x555560431660, 24) = 0 rseq(0x555560431ca0, 0x20, 0, 0x53053053) = -1 ENOSYS (Function not implemented) prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3996173772", 4096) = 28 getrandom("\x81\x90\xf6\x00\x98\x6c\x26\x2f", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555560431d00 brk(0x555560452d00) = 0x555560452d00 brk(0x555560453000) = 0x555560453000 mprotect(0x7f0d0303c000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 write(1, "executing program\n", 18executing program ) = 18 socket(AF_INET6, SOCK_DGRAM, IPPROTO_IP) = 3 setsockopt(3, SOL_IPV6, IPV6_XFRM_POLICY, "\xac\x14\x14\xbb\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 232) = 0 socket(AF_KEY, SOCK_RAW, 2) = 4 setsockopt(4, SOL_SOCKET, SO_RCVBUF, [0], 4) = 0 sendmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\x02\x0b\x00\x01\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", iov_len=16}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 16 sendmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\x02\x12\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", iov_len=16}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 16 socket(AF_NETLINK, SOCK_RAW, NETLINK_XFRM) = 5 socket(AF_NETLINK, SOCK_RAW, NETLINK_XFRM) = 6 sendmsg(6, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\xb8\x00\x00\x00\x13\x00\xe9\x99\x00\x00\x00\x00\x00\x00\x00\x00\xfc\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\xac\x1e\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0a\x00\x60\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=184}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 184 socket(AF_NETLINK, SOCK_RAW, NETLINK_XFRM) = 7 sendmsg(7, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\xb8\x00\x00\x00\x13\x00\xe9\x99\x00\x00\x00\x00\x00\x00\x00\x00\xfc\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xac\x1e\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0a\x00\x60\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xee\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=184}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_EOR}, 0) = 184 [ 22.803413][ T24] audit: type=1400 audit(1745208045.640:66): avc: denied { execmem } for pid=289 comm="syz-executor399" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 22.819213][ T289] ================================================================== [ 22.822687][ T24] audit: type=1400 audit(1745208045.650:67): avc: denied { create } for pid=289 comm="syz-executor399" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=key_socket permissive=1 [ 22.830522][ T289] BUG: KASAN: slab-out-of-bounds in xfrm_policy_inexact_list_reinsert+0x5b0/0x660 [ 22.849922][ T24] audit: type=1400 audit(1745208045.650:68): avc: denied { setopt } for pid=289 comm="syz-executor399" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=key_socket permissive=1 [ 22.858874][ T289] Read of size 1 at addr ffff88811d21fbd8 by task syz-executor399/289 [ 22.858877][ T289] [ 22.858889][ T289] CPU: 1 PID: 289 Comm: syz-executor399 Not tainted 5.10.236-syzkaller #0 [ 22.858895][ T289] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 22.858899][ T289] Call Trace: [ 22.858917][ T289] dump_stack_lvl+0x1e2/0x24b [ 22.858927][ T289] ? printk+0xd1/0x111 [ 22.858938][ T289] ? bfq_pos_tree_add_move+0x43b/0x43b [ 22.858949][ T289] ? wake_up_klogd+0xb8/0xf0 [ 22.858959][ T289] ? panic+0x812/0x812 [ 22.858971][ T289] print_address_description+0x81/0x3b0 [ 22.858981][ T289] ? stack_trace_save+0x113/0x1c0 [ 22.858991][ T289] kasan_report+0x179/0x1c0 [ 22.859005][ T289] ? xfrm_policy_inexact_list_reinsert+0x5b0/0x660 [ 22.859017][ T289] ? xfrm_policy_inexact_list_reinsert+0x5b0/0x660 [ 22.859027][ T289] __asan_report_load1_noabort+0x14/0x20 [ 22.859047][ T289] xfrm_policy_inexact_list_reinsert+0x5b0/0x660 [ 22.878542][ T24] audit: type=1400 audit(1745208045.650:69): avc: denied { write } for pid=289 comm="syz-executor399" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=key_socket permissive=1 [ 22.886474][ T289] ? ____kasan_kmalloc+0xed/0x110 [ 22.886491][ T289] ? ____kasan_kmalloc+0xdb/0x110 [ 22.888641][ T24] audit: type=1400 audit(1745208045.650:70): avc: denied { create } for pid=289 comm="syz-executor399" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_xfrm_socket permissive=1 [ 22.896990][ T289] ? xfrm_policy_addr_delta+0x20b/0x330 [ 22.897004][ T289] xfrm_policy_inexact_insert_node+0x917/0xb00 [ 22.897016][ T289] ? xfrm_policy_inexact_alloc_bin+0x651/0x1520 [ 22.897029][ T289] xfrm_policy_inexact_alloc_chain+0x4ec/0xaf0 [ 22.897041][ T289] xfrm_policy_inexact_insert+0x6a/0x1160 [ 22.897052][ T289] ? __kasan_check_write+0x14/0x20 [ 22.897074][ T289] ? _raw_spin_lock_bh+0xa4/0x1b0 [ 22.906947][ T24] audit: type=1400 audit(1745208045.650:71): avc: denied { write } for pid=289 comm="syz-executor399" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_xfrm_socket permissive=1 [ 22.910014][ T289] ? policy_hash_bysel+0x137/0x700 [ 22.914557][ T24] audit: type=1400 audit(1745208045.650:72): avc: denied { nlmsg_write } for pid=289 comm="syz-executor399" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_xfrm_socket permissive=1 [ 22.918427][ T289] xfrm_policy_insert+0xe7/0x940 [ 23.109203][ T289] xfrm_add_policy+0x4f2/0x980 [ 23.113795][ T289] ? cap_capable+0x1ce/0x270 [ 23.118215][ T289] ? xfrm_dump_sa_done+0xc0/0xc0 [ 23.122991][ T289] xfrm_user_rcv_msg+0x4e7/0x7c0 [ 23.127764][ T289] ? xfrm_netlink_rcv+0x90/0x90 [ 23.132454][ T289] ? stack_trace_save+0x113/0x1c0 [ 23.137316][ T289] ? avc_has_perm_noaudit+0x240/0x240 [ 23.142522][ T289] ? iov_iter_advance+0x258/0xb20 [ 23.147383][ T289] netlink_rcv_skb+0x1cf/0x410 [ 23.151982][ T289] ? xfrm_netlink_rcv+0x90/0x90 [ 23.156668][ T289] ? netlink_ack+0xb30/0xb30 [ 23.161093][ T289] ? mutex_trylock+0xa0/0xa0 [ 23.165522][ T289] ? netlink_autobind+0x190/0x190 [ 23.170382][ T289] ? selinux_vm_enough_memory+0x170/0x170 [ 23.175937][ T289] xfrm_netlink_rcv+0x72/0x90 [ 23.180450][ T289] netlink_unicast+0x8df/0xac0 [ 23.185053][ T289] ? netlink_detachskb+0x90/0x90 [ 23.189831][ T289] ? security_netlink_send+0x7b/0xa0 [ 23.194948][ T289] netlink_sendmsg+0xa46/0xd00 [ 23.199546][ T289] ? netlink_getsockopt+0x5c0/0x5c0 [ 23.204605][ T289] ? check_stack_object+0x114/0x130 [ 23.209621][ T289] ? security_socket_sendmsg+0x82/0xb0 [ 23.214916][ T289] ? netlink_getsockopt+0x5c0/0x5c0 [ 23.219952][ T289] ____sys_sendmsg+0x59e/0x8f0 [ 23.224566][ T289] ? iovec_from_user+0x2d9/0x330 [ 23.229341][ T289] ? __import_iovec+0x253/0x3b0 [ 23.234015][ T289] ? __sys_sendmsg_sock+0x40/0x40 [ 23.238872][ T289] ___sys_sendmsg+0x252/0x2e0 [ 23.243385][ T289] ? __sys_sendmsg+0x280/0x280 [ 23.247987][ T289] ? finish_task_switch+0x130/0x5a0 [ 23.253022][ T289] ? __schedule+0xbee/0x1330 [ 23.257458][ T289] ? __kasan_check_write+0x14/0x20 [ 23.262392][ T289] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 23.267354][ T289] ? __kasan_check_read+0x11/0x20 [ 23.272225][ T289] ? __fdget+0x179/0x240 [ 23.276305][ T289] __se_sys_sendmsg+0x1b1/0x280 [ 23.280967][ T289] ? _raw_spin_unlock_irq+0x4e/0x70 [ 23.286002][ T289] ? __x64_sys_sendmsg+0x90/0x90 [ 23.290781][ T289] ? fpu__clear_all+0x20/0x20 [ 23.295289][ T289] __x64_sys_sendmsg+0x7b/0x90 [ 23.299988][ T289] do_syscall_64+0x31/0x40 [ 23.304244][ T289] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 23.309969][ T289] RIP: 0033:0x7f0d02fc8ae9 [ 23.314225][ T289] Code: 48 83 c4 28 c3 e8 37 17 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 23.333666][ T289] RSP: 002b:00007ffe0f4b53f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 23.341910][ T289] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f0d02fc8ae9 [ 23.349722][ T289] RDX: 0000000000004000 RSI: 0000200000000580 RDI: 0000000000000005 [ 23.357534][ T289] RBP: 0000200000000580 R08: 0000200000000017 R09: 0000000000000000 [ 23.365346][ T289] R10: 0000200000000012 R11: 0000000000000246 R12: 0000000000000000 [ 23.373157][ T289] R13: 0000000000000000 R14: 0000000000000000 R15: 000000000000000a [ 23.380986][ T289] [ 23.383138][ T289] Allocated by task 289: [ 23.387225][ T289] ____kasan_kmalloc+0xdb/0x110 [ 23.391906][ T289] __kasan_kmalloc+0x9/0x10 [ 23.396246][ T289] __kmalloc+0x1aa/0x330 [ 23.400329][ T289] sk_prot_alloc+0xbe/0x370 [ 23.404667][ T289] sk_alloc+0x38/0x4d0 [ 23.408575][ T289] pfkey_create+0x12c/0x620 [ 23.412914][ T289] __sock_create+0x3a6/0x760 [ 23.417342][ T289] __sys_socket+0x132/0x370 [ 23.421962][ T289] __x64_sys_socket+0x7a/0x90 [ 23.426468][ T289] do_syscall_64+0x31/0x40 [ 23.430721][ T289] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 23.436435][ T289] [ 23.438608][ T289] The buggy address belongs to the object at ffff88811d21f800 [ 23.438608][ T289] which belongs to the cache kmalloc-1k of size 1024 [ 23.452517][ T289] The buggy address is located 984 bytes inside of [ 23.452517][ T289] 1024-byte region [ffff88811d21f800, ffff88811d21fc00) [ 23.465685][ T289] The buggy address belongs to the page: [ 23.471165][ T289] page:ffffea0004748600 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11d218 [ 23.481228][ T289] head:ffffea0004748600 order:3 compound_mapcount:0 compound_pincount:0 [ 23.489404][ T289] flags: 0x4000000000010200(slab|head) [ 23.494688][ T289] raw: 4000000000010200 dead000000000100 dead000000000122 ffff888100042f00 [ 23.503101][ T289] raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 [ 23.511517][ T289] page dumped because: kasan: bad access detected [ 23.517771][ T289] page_owner tracks the page as allocated [ 23.523332][ T289] page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 284, ts 22812056769, free_ts 22803783755 [ 23.542169][ T289] prep_new_page+0x166/0x180 [ 23.546589][ T289] get_page_from_freelist+0x2d8c/0x2f30 [ 23.551970][ T289] __alloc_pages_nodemask+0x435/0xaf0 [ 23.557175][ T289] new_slab+0x80/0x400 [ 23.561082][ T289] ___slab_alloc+0x302/0x4b0 [ 23.565861][ T289] __slab_alloc+0x63/0xa0 [ 23.570023][ T289] __kmalloc_track_caller+0x1f8/0x320 [ 23.575230][ T289] __alloc_skb+0xbc/0x510 [ 23.579399][ T289] sk_stream_alloc_skb+0x1f8/0xae0 [ 23.584346][ T289] tcp_sendmsg_locked+0xce3/0x3ae0 [ 23.589727][ T289] tcp_sendmsg+0x2f/0x50 [ 23.593804][ T289] inet_sendmsg+0xa1/0xc0 [ 23.597972][ T289] sock_write_iter+0x39b/0x530 [ 23.602576][ T289] vfs_write+0xb4c/0xe70 [ 23.606649][ T289] ksys_write+0x199/0x2c0 [ 23.610820][ T289] __x64_sys_write+0x7b/0x90 [ 23.615240][ T289] page last free stack trace: [ 23.619760][ T289] __free_pages_ok+0x82c/0x850 [ 23.624358][ T289] free_compound_page+0x73/0x90 [ 23.629049][ T289] __put_compound_page+0x73/0xb0 [ 23.633819][ T289] __put_page+0xc0/0xe0 [ 23.637815][ T289] page_to_skb+0x3f6/0x900 [ 23.642066][ T289] receive_buf+0xe79/0x53d0 [ 23.646407][ T289] virtnet_poll+0x5df/0x1240 [ 23.650834][ T289] net_rx_action+0x516/0x10d0 [ 23.655346][ T289] __do_softirq+0x268/0x5bb [ 23.659680][ T289] [ 23.661849][ T289] Memory state around the buggy address: [ 23.667326][ T289] ffff88811d21fa80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 23.675543][ T289] ffff88811d21fb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 23.683459][ T289] >ffff88811d21fb80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 23.691320][ T289] ^ [ 23.698088][ T289] ffff88811d21fc00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc sendmsg(5, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\xb8\x00\x00\x00\x13\x00\xe9\x99\x00\x00\x00\x00\x00\x00\x00\x00\xfc\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xac\x1e\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x0a\x00\x40\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xee\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x09\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=184}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, MSG_NOSIGNAL) = 184 exit_group(0) = ? +++ exited with 0 +++ [ 23.705988][ T289