./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2769754700 <...> Warning: Permanently added '10.128.0.119' (ED25519) to the list of known hosts. execve("./syz-executor2769754700", ["./syz-executor2769754700"], 0x7ffdfc465270 /* 10 vars */) = 0 brk(NULL) = 0x555576187000 brk(0x555576187d00) = 0x555576187d00 arch_prctl(ARCH_SET_FS, 0x555576187380) = 0 set_tid_address(0x555576187650) = 290 set_robust_list(0x555576187660, 24) = 0 rseq(0x555576187ca0, 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-executor2769754700", 4096) = 28 getrandom("\x5a\x4c\x72\x98\xaf\xe0\xb7\x10", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555576187d00 brk(0x5555761a8d00) = 0x5555761a8d00 brk(0x5555761a9000) = 0x5555761a9000 mprotect(0x7ff17a4e9000, 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 [ 24.372067][ T24] audit: type=1400 audit(1745212317.900:66): avc: denied { execmem } for pid=290 comm="syz-executor276" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 24.388042][ T290] ================================================================== [ 24.391523][ T24] audit: type=1400 audit(1745212317.910:67): avc: denied { create } for pid=290 comm="syz-executor276" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=key_socket permissive=1 [ 24.399163][ T290] BUG: KASAN: slab-out-of-bounds in xfrm_policy_inexact_list_reinsert+0x5b0/0x660 [ 24.399173][ T290] Read of size 1 at addr ffff88811cfd1bd8 by task syz-executor276/290 [ 24.399176][ T290] [ 24.399189][ T290] CPU: 0 PID: 290 Comm: syz-executor276 Not tainted 5.10.236-syzkaller #0 [ 24.399196][ T290] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 24.399206][ T290] Call Trace: [ 24.399222][ T290] dump_stack_lvl+0x1e2/0x24b [ 24.399242][ T290] ? printk+0xd1/0x111 [ 24.418714][ T24] audit: type=1400 audit(1745212317.910:68): avc: denied { setopt } for pid=290 comm="syz-executor276" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=key_socket permissive=1 [ 24.427518][ T290] ? bfq_pos_tree_add_move+0x43b/0x43b [ 24.427539][ T290] ? wake_up_klogd+0xb8/0xf0 [ 24.427550][ T290] ? panic+0x812/0x812 [ 24.427563][ T290] print_address_description+0x81/0x3b0 [ 24.427574][ T290] ? stack_trace_save+0x113/0x1c0 [ 24.427585][ T290] kasan_report+0x179/0x1c0 [ 24.427600][ T290] ? xfrm_policy_inexact_list_reinsert+0x5b0/0x660 [ 24.427614][ T290] ? xfrm_policy_inexact_list_reinsert+0x5b0/0x660 [ 24.427626][ T290] __asan_report_load1_noabort+0x14/0x20 [ 24.427638][ T290] xfrm_policy_inexact_list_reinsert+0x5b0/0x660 [ 24.427655][ T290] ? ____kasan_kmalloc+0xed/0x110 [ 24.435621][ T24] audit: type=1400 audit(1745212317.910:69): avc: denied { write } for pid=290 comm="syz-executor276" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=key_socket permissive=1 [ 24.437666][ T290] ? ____kasan_kmalloc+0xdb/0x110 [ 24.437680][ T290] ? xfrm_policy_addr_delta+0x20b/0x330 [ 24.437693][ T290] xfrm_policy_inexact_insert_node+0x917/0xb00 [ 24.437713][ T290] ? xfrm_policy_inexact_alloc_bin+0x651/0x1520 [ 24.446119][ T24] audit: type=1400 audit(1745212317.910:70): avc: denied { create } for pid=290 comm="syz-executor276" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_xfrm_socket permissive=1 [ 24.455903][ T290] xfrm_policy_inexact_alloc_chain+0x4ec/0xaf0 [ 24.455917][ T290] xfrm_policy_inexact_insert+0x6a/0x1160 [ 24.455929][ T290] ? __kasan_check_write+0x14/0x20 [ 24.455941][ T290] ? _raw_spin_lock_bh+0xa4/0x1b0 [ 24.455953][ T290] ? policy_hash_bysel+0x137/0x700 [ 24.455966][ T290] xfrm_policy_insert+0xe7/0x940 [ 24.455980][ T290] xfrm_add_policy+0x4f2/0x980 [ 24.455998][ T290] ? cap_capable+0x1ce/0x270 [ 24.459070][ T24] audit: type=1400 audit(1745212317.910:71): avc: denied { write } for pid=290 comm="syz-executor276" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_xfrm_socket permissive=1 [ 24.463543][ T290] ? xfrm_dump_sa_done+0xc0/0xc0 [ 24.463557][ T290] xfrm_user_rcv_msg+0x4e7/0x7c0 [ 24.463581][ T290] ? xfrm_netlink_rcv+0x90/0x90 [ 24.463592][ T290] ? stack_trace_save+0x113/0x1c0 [ 24.463612][ T290] ? avc_has_perm_noaudit+0x240/0x240 [ 24.467533][ T24] audit: type=1400 audit(1745212317.910:72): avc: denied { nlmsg_write } for pid=290 comm="syz-executor276" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_xfrm_socket permissive=1 [ 24.486804][ T290] ? iov_iter_advance+0x258/0xb20 [ 24.486818][ T290] netlink_rcv_skb+0x1cf/0x410 [ 24.486829][ T290] ? xfrm_netlink_rcv+0x90/0x90 [ 24.486841][ T290] ? netlink_ack+0xb30/0xb30 [ 24.486851][ T290] ? mutex_trylock+0xa0/0xa0 [ 24.486863][ T290] ? netlink_autobind+0x190/0x190 [ 24.486875][ T290] ? selinux_vm_enough_memory+0x170/0x170 [ 24.486887][ T290] xfrm_netlink_rcv+0x72/0x90 [ 24.486898][ T290] netlink_unicast+0x8df/0xac0 [ 24.486911][ T290] ? netlink_detachskb+0x90/0x90 [ 24.486923][ T290] ? security_netlink_send+0x7b/0xa0 [ 24.486934][ T290] netlink_sendmsg+0xa46/0xd00 [ 24.486949][ T290] ? netlink_getsockopt+0x5c0/0x5c0 [ 24.486961][ T290] ? check_stack_object+0x114/0x130 [ 24.486974][ T290] ? security_socket_sendmsg+0x82/0xb0 [ 24.486992][ T290] ? netlink_getsockopt+0x5c0/0x5c0 [ 24.788574][ T290] ____sys_sendmsg+0x59e/0x8f0 [ 24.793165][ T290] ? iovec_from_user+0x2d9/0x330 [ 24.797936][ T290] ? __import_iovec+0x253/0x3b0 [ 24.802622][ T290] ? __sys_sendmsg_sock+0x40/0x40 [ 24.807487][ T290] ___sys_sendmsg+0x252/0x2e0 [ 24.812000][ T290] ? __sys_sendmsg+0x280/0x280 [ 24.816596][ T290] ? finish_task_switch+0x130/0x5a0 [ 24.821637][ T290] ? __schedule+0xbee/0x1330 [ 24.826094][ T290] ? __kasan_check_write+0x14/0x20 [ 24.831000][ T290] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 24.835950][ T290] ? __kasan_check_read+0x11/0x20 [ 24.840813][ T290] ? __fdget+0x179/0x240 [ 24.844890][ T290] __se_sys_sendmsg+0x1b1/0x280 [ 24.849580][ T290] ? _raw_spin_unlock_irq+0x4e/0x70 [ 24.854609][ T290] ? __x64_sys_sendmsg+0x90/0x90 [ 24.859393][ T290] ? fpu__clear_all+0x20/0x20 [ 24.863895][ T290] __x64_sys_sendmsg+0x7b/0x90 [ 24.868497][ T290] do_syscall_64+0x31/0x40 [ 24.872750][ T290] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 24.878490][ T290] RIP: 0033:0x7ff17a475ae9 [ 24.882733][ T290] 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 [ 24.902172][ T290] RSP: 002b:00007fffbbba6148 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 24.910418][ T290] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff17a475ae9 [ 24.918225][ T290] RDX: 0000000000004000 RSI: 0000200000000580 RDI: 0000000000000005 [ 24.926036][ T290] RBP: 0000200000000580 R08: 0000200000000017 R09: 0000000000000000 [ 24.933847][ T290] R10: 0000200000000012 R11: 0000000000000246 R12: 0000000000000000 [ 24.941659][ T290] R13: 0000000000000000 R14: 0000000000000000 R15: 000000000000000a [ 24.949471][ T290] [ 24.951639][ T290] Allocated by task 290: [ 24.955726][ T290] ____kasan_kmalloc+0xdb/0x110 [ 24.960411][ T290] __kasan_kmalloc+0x9/0x10 [ 24.964747][ T290] __kmalloc+0x1aa/0x330 [ 24.968826][ T290] sk_prot_alloc+0xbe/0x370 [ 24.973166][ T290] sk_alloc+0x38/0x4d0 [ 24.977071][ T290] pfkey_create+0x12c/0x620 [ 24.981413][ T290] __sock_create+0x3a6/0x760 [ 24.985838][ T290] __sys_socket+0x132/0x370 [ 24.990179][ T290] __x64_sys_socket+0x7a/0x90 [ 24.994691][ T290] do_syscall_64+0x31/0x40 [ 24.998948][ T290] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 25.004668][ T290] [ 25.006841][ T290] The buggy address belongs to the object at ffff88811cfd1800 [ 25.006841][ T290] which belongs to the cache kmalloc-1k of size 1024 [ 25.020732][ T290] The buggy address is located 984 bytes inside of [ 25.020732][ T290] 1024-byte region [ffff88811cfd1800, ffff88811cfd1c00) [ 25.033923][ T290] The buggy address belongs to the page: [ 25.039406][ T290] page:ffffea000473f400 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11cfd0 [ 25.049461][ T290] head:ffffea000473f400 order:3 compound_mapcount:0 compound_pincount:0 [ 25.057624][ T290] flags: 0x4000000000010200(slab|head) [ 25.062915][ T290] raw: 4000000000010200 dead000000000100 dead000000000122 ffff888100042f00 [ 25.071332][ T290] raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 [ 25.079748][ T290] page dumped because: kasan: bad access detected [ 25.086003][ T290] page_owner tracks the page as allocated [ 25.091560][ T290] 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 24380464439, free_ts 24380374188 [ 25.110395][ T290] prep_new_page+0x166/0x180 [ 25.114817][ T290] get_page_from_freelist+0x2d8c/0x2f30 [ 25.120197][ T290] __alloc_pages_nodemask+0x435/0xaf0 [ 25.125405][ T290] new_slab+0x80/0x400 [ 25.129307][ T290] ___slab_alloc+0x302/0x4b0 [ 25.133730][ T290] __slab_alloc+0x63/0xa0 [ 25.137899][ T290] __kmalloc_track_caller+0x1f8/0x320 [ 25.143106][ T290] __alloc_skb+0xbc/0x510 [ 25.147272][ T290] sk_stream_alloc_skb+0x1f8/0xae0 [ 25.152220][ T290] tcp_sendmsg_locked+0xce3/0x3ae0 [ 25.157168][ T290] tcp_sendmsg+0x2f/0x50 [ 25.161248][ T290] inet_sendmsg+0xa1/0xc0 [ 25.165414][ T290] sock_write_iter+0x39b/0x530 [ 25.170013][ T290] vfs_write+0xb4c/0xe70 [ 25.174090][ T290] ksys_write+0x199/0x2c0 [ 25.178259][ T290] __x64_sys_write+0x7b/0x90 [ 25.182681][ T290] page last free stack trace: [ 25.187198][ T290] __free_pages_ok+0x82c/0x850 [ 25.191798][ T290] free_compound_page+0x73/0x90 [ 25.196487][ T290] __put_compound_page+0x73/0xb0 [ 25.201255][ T290] __put_page+0xc0/0xe0 [ 25.205252][ T290] page_to_skb+0x3f6/0x900 [ 25.209503][ T290] receive_buf+0xe79/0x53d0 [ 25.213845][ T290] virtnet_poll+0x5df/0x1240 [ 25.218274][ T290] net_rx_action+0x516/0x10d0 [ 25.222782][ T290] __do_softirq+0x268/0x5bb [ 25.227118][ T290] [ 25.229286][ T290] Memory state around the buggy address: [ 25.234759][ T290] ffff88811cfd1a80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 25.242657][ T290] ffff88811cfd1b00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 25.250556][ T290] >ffff88811cfd1b80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 25.258451][ T290] ^ [ 25.265224][ T290] ffff88811cfd1c00: 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 +++ [ 25.273119][ T290] ffff88811cfd1c8