./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor212791566 <...> Warning: Permanently added '10.128.1.80' (ED25519) to the list of known hosts. execve("./syz-executor212791566", ["./syz-executor212791566"], 0x7fff301a85c0 /* 10 vars */) = 0 brk(NULL) = 0x555576a8a000 brk(0x555576a8ad00) = 0x555576a8ad00 arch_prctl(ARCH_SET_FS, 0x555576a8a380) = 0 set_tid_address(0x555576a8a650) = 287 set_robust_list(0x555576a8a660, 24) = 0 rseq(0x555576a8aca0, 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-executor212791566", 4096) = 27 getrandom("\x0a\x6a\xc1\xb4\x4c\x2f\x8a\x02", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555576a8ad00 brk(0x555576aabd00) = 0x555576aabd00 brk(0x555576aac000) = 0x555576aac000 mprotect(0x7fc6d40df000, 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 [ 20.624775][ T24] audit: type=1400 audit(1745215172.400:66): avc: denied { execmem } for pid=287 comm="syz-executor212" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 20.632881][ T24] audit: type=1400 audit(1745215172.410:67): avc: denied { create } for pid=287 comm="syz-executor212" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=key_socket permissive=1 [ 20.638629][ T24] audit: type=1400 audit(1745215172.410:68): avc: denied { setopt } for pid=287 comm="syz-executor212" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=key_socket permissive=1 [ 20.643265][ T24] audit: type=1400 audit(1745215172.420:69): avc: denied { write } for pid=287 comm="syz-executor212" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=key_socket permissive=1 [ 20.645809][ T287] ================================================================== [ 20.660496][ T24] audit: type=1400 audit(1745215172.420:70): avc: denied { create } for pid=287 comm="syz-executor212" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_xfrm_socket permissive=1 [ 20.668304][ T287] BUG: KASAN: slab-out-of-bounds in xfrm_policy_inexact_list_reinsert+0x5b0/0x660 [ 20.668316][ T287] Read of size 1 at addr ffff88811d0933d8 by task syz-executor212/287 [ 20.668319][ T287] [ 20.668331][ T287] CPU: 0 PID: 287 Comm: syz-executor212 Not tainted 5.10.236-syzkaller #0 [ 20.668337][ T287] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 20.668341][ T287] Call Trace: [ 20.668358][ T287] dump_stack_lvl+0x1e2/0x24b [ 20.668368][ T287] ? printk+0xd1/0x111 [ 20.668379][ T287] ? bfq_pos_tree_add_move+0x43b/0x43b [ 20.668389][ T287] ? wake_up_klogd+0xb8/0xf0 [ 20.668399][ T287] ? panic+0x812/0x812 [ 20.668411][ T287] print_address_description+0x81/0x3b0 [ 20.668420][ T287] ? stack_trace_save+0x113/0x1c0 [ 20.668430][ T287] kasan_report+0x179/0x1c0 [ 20.668441][ T287] ? xfrm_policy_inexact_list_reinsert+0x5b0/0x660 [ 20.668463][ T287] ? xfrm_policy_inexact_list_reinsert+0x5b0/0x660 [ 20.688740][ T24] audit: type=1400 audit(1745215172.420:71): avc: denied { write } for pid=287 comm="syz-executor212" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_xfrm_socket permissive=1 [ 20.697677][ T287] __asan_report_load1_noabort+0x14/0x20 [ 20.697690][ T287] xfrm_policy_inexact_list_reinsert+0x5b0/0x660 [ 20.697709][ T287] ? ____kasan_kmalloc+0xed/0x110 [ 20.705898][ T24] audit: type=1400 audit(1745215172.420:72): avc: denied { nlmsg_write } for pid=287 comm="syz-executor212" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_xfrm_socket permissive=1 [ 20.707961][ T287] ? ____kasan_kmalloc+0xdb/0x110 [ 20.841363][ T287] ? xfrm_policy_addr_delta+0x20b/0x330 [ 20.846745][ T287] xfrm_policy_inexact_insert_node+0x917/0xb00 [ 20.852803][ T287] ? xfrm_policy_inexact_alloc_bin+0x651/0x1520 [ 20.858901][ T287] xfrm_policy_inexact_alloc_chain+0x4ec/0xaf0 [ 20.864873][ T287] xfrm_policy_inexact_insert+0x6a/0x1160 [ 20.870565][ T287] ? __kasan_check_write+0x14/0x20 [ 20.875677][ T287] ? _raw_spin_lock_bh+0xa4/0x1b0 [ 20.880523][ T287] ? policy_hash_bysel+0x137/0x700 [ 20.885469][ T287] xfrm_policy_insert+0xe7/0x940 [ 20.890244][ T287] xfrm_add_policy+0x4f2/0x980 [ 20.894846][ T287] ? cap_capable+0x1ce/0x270 [ 20.899276][ T287] ? xfrm_dump_sa_done+0xc0/0xc0 [ 20.904085][ T287] xfrm_user_rcv_msg+0x4e7/0x7c0 [ 20.908820][ T287] ? xfrm_netlink_rcv+0x90/0x90 [ 20.913503][ T287] ? stack_trace_save+0x113/0x1c0 [ 20.918366][ T287] ? avc_has_perm_noaudit+0x240/0x240 [ 20.923578][ T287] ? iov_iter_advance+0x258/0xb20 [ 20.928438][ T287] netlink_rcv_skb+0x1cf/0x410 [ 20.933034][ T287] ? xfrm_netlink_rcv+0x90/0x90 [ 20.937720][ T287] ? netlink_ack+0xb30/0xb30 [ 20.942147][ T287] ? mutex_trylock+0xa0/0xa0 [ 20.946570][ T287] ? netlink_autobind+0x190/0x190 [ 20.951436][ T287] ? selinux_vm_enough_memory+0x170/0x170 [ 20.956988][ T287] xfrm_netlink_rcv+0x72/0x90 [ 20.961518][ T287] netlink_unicast+0x8df/0xac0 [ 20.966128][ T287] ? netlink_detachskb+0x90/0x90 [ 20.970893][ T287] ? security_netlink_send+0x7b/0xa0 [ 20.976004][ T287] netlink_sendmsg+0xa46/0xd00 [ 20.980601][ T287] ? netlink_getsockopt+0x5c0/0x5c0 [ 20.985638][ T287] ? check_stack_object+0x114/0x130 [ 20.990668][ T287] ? security_socket_sendmsg+0x82/0xb0 [ 20.995984][ T287] ? netlink_getsockopt+0x5c0/0x5c0 [ 21.001000][ T287] ____sys_sendmsg+0x59e/0x8f0 [ 21.005596][ T287] ? iovec_from_user+0x2d9/0x330 [ 21.010484][ T287] ? __import_iovec+0x253/0x3b0 [ 21.015182][ T287] ? __sys_sendmsg_sock+0x40/0x40 [ 21.020029][ T287] ___sys_sendmsg+0x252/0x2e0 [ 21.024653][ T287] ? __sys_sendmsg+0x280/0x280 [ 21.029252][ T287] ? finish_task_switch+0x130/0x5a0 [ 21.034287][ T287] ? __schedule+0xbee/0x1330 [ 21.038714][ T287] ? __kasan_check_write+0x14/0x20 [ 21.043752][ T287] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 21.048706][ T287] ? __kasan_check_read+0x11/0x20 [ 21.053557][ T287] ? __fdget+0x179/0x240 [ 21.057651][ T287] __se_sys_sendmsg+0x1b1/0x280 [ 21.062325][ T287] ? _raw_spin_unlock_irq+0x4e/0x70 [ 21.067388][ T287] ? __x64_sys_sendmsg+0x90/0x90 [ 21.072148][ T287] ? fpu__clear_all+0x20/0x20 [ 21.076649][ T287] __x64_sys_sendmsg+0x7b/0x90 [ 21.081260][ T287] do_syscall_64+0x31/0x40 [ 21.085520][ T287] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 21.091336][ T287] RIP: 0033:0x7fc6d406bae9 [ 21.095581][ T287] 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 [ 21.115023][ T287] RSP: 002b:00007ffce008e928 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 21.123254][ T287] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc6d406bae9 [ 21.131066][ T287] RDX: 0000000000004000 RSI: 0000200000000580 RDI: 0000000000000005 [ 21.138874][ T287] RBP: 0000200000000580 R08: 0000200000000017 R09: 0000000000000000 [ 21.147128][ T287] R10: 0000200000000012 R11: 0000000000000246 R12: 0000000000000000 [ 21.154935][ T287] R13: 0000000000000000 R14: 0000000000000000 R15: 000000000000000a [ 21.162850][ T287] [ 21.165001][ T287] Allocated by task 287: [ 21.169087][ T287] ____kasan_kmalloc+0xdb/0x110 [ 21.173770][ T287] __kasan_kmalloc+0x9/0x10 [ 21.178111][ T287] __kmalloc+0x1aa/0x330 [ 21.182197][ T287] sk_prot_alloc+0xbe/0x370 [ 21.186528][ T287] sk_alloc+0x38/0x4d0 [ 21.190453][ T287] pfkey_create+0x12c/0x620 [ 21.194779][ T287] __sock_create+0x3a6/0x760 [ 21.199209][ T287] __sys_socket+0x132/0x370 [ 21.203818][ T287] __x64_sys_socket+0x7a/0x90 [ 21.208329][ T287] do_syscall_64+0x31/0x40 [ 21.212567][ T287] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 21.218290][ T287] [ 21.220462][ T287] The buggy address belongs to the object at ffff88811d093000 [ 21.220462][ T287] which belongs to the cache kmalloc-1k of size 1024 [ 21.234353][ T287] The buggy address is located 984 bytes inside of [ 21.234353][ T287] 1024-byte region [ffff88811d093000, ffff88811d093400) [ 21.247541][ T287] The buggy address belongs to the page: [ 21.253104][ T287] page:ffffea0004742400 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11d090 [ 21.263178][ T287] head:ffffea0004742400 order:3 compound_mapcount:0 compound_pincount:0 [ 21.271465][ T287] flags: 0x4000000000010200(slab|head) [ 21.276749][ T287] raw: 4000000000010200 dead000000000100 dead000000000122 ffff888100042f00 [ 21.285163][ T287] raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 [ 21.293580][ T287] page dumped because: kasan: bad access detected [ 21.299830][ T287] page_owner tracks the page as allocated [ 21.305393][ T287] page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 282, ts 20632343673, free_ts 20625196405 [ 21.323619][ T287] prep_new_page+0x166/0x180 [ 21.328054][ T287] get_page_from_freelist+0x2d8c/0x2f30 [ 21.333423][ T287] __alloc_pages_nodemask+0x435/0xaf0 [ 21.338632][ T287] new_slab+0x80/0x400 [ 21.342538][ T287] ___slab_alloc+0x302/0x4b0 [ 21.346964][ T287] __slab_alloc+0x63/0xa0 [ 21.351302][ T287] __kmalloc_track_caller+0x1f8/0x320 [ 21.356512][ T287] __alloc_skb+0xbc/0x510 [ 21.360676][ T287] __napi_alloc_skb+0x15d/0x2e0 [ 21.365367][ T287] page_to_skb+0x3d/0x900 [ 21.369531][ T287] receive_buf+0xe79/0x53d0 [ 21.373874][ T287] virtnet_poll+0x5df/0x1240 [ 21.378298][ T287] net_rx_action+0x516/0x10d0 [ 21.382817][ T287] __do_softirq+0x268/0x5bb [ 21.387150][ T287] page last free stack trace: [ 21.391666][ T287] __free_pages_ok+0x82c/0x850 [ 21.396267][ T287] free_compound_page+0x73/0x90 [ 21.400969][ T287] __put_compound_page+0x73/0xb0 [ 21.405729][ T287] __put_page+0xc0/0xe0 [ 21.409721][ T287] page_to_skb+0x3f6/0x900 [ 21.413975][ T287] receive_buf+0xe79/0x53d0 [ 21.418342][ T287] virtnet_poll+0x5df/0x1240 [ 21.422745][ T287] net_rx_action+0x516/0x10d0 [ 21.427255][ T287] __do_softirq+0x268/0x5bb [ 21.431591][ T287] [ 21.433763][ T287] Memory state around the buggy address: [ 21.439234][ T287] ffff88811d093280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 21.447134][ T287] ffff88811d093300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 21.455216][ T287] >ffff88811d093380: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 21.463154][ T287] ^ [ 21.469884][ T287] ffff88811d093400: 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 +++ [ 21.477