./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2066440595 <...> Warning: Permanently added '10.128.1.8' (ED25519) to the list of known hosts. execve("./syz-executor2066440595", ["./syz-executor2066440595"], 0x7ffdbb687ad0 /* 10 vars */) = 0 brk(NULL) = 0x555556094000 brk(0x555556094d00) = 0x555556094d00 arch_prctl(ARCH_SET_FS, 0x555556094380) = 0 set_tid_address(0x555556094650) = 5074 set_robust_list(0x555556094660, 24) = 0 rseq(0x555556094ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2066440595", 4096) = 28 getrandom("\x5b\x8a\x1a\x4b\x4f\x0f\xe8\x5f", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556094d00 brk(0x5555560b5d00) = 0x5555560b5d00 brk(0x5555560b6000) = 0x5555560b6000 mprotect(0x7fb02c142000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 socket(AF_RXRPC, SOCK_DGRAM, 2) = 3 connect(3, {sa_family=AF_RXRPC, srx_service=0 /* ???_SERVICE */, transport_type=SOCK_DGRAM, transport_len=16, transport={sin={sin_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("0.0.0.0")}}}, 36) = 0 [ 73.052626][ T5074] ------------[ cut here ]------------ [ 73.058760][ T5074] WARNING: CPU: 1 PID: 5074 at include/linux/gfp.h:323 rxrpc_alloc_data_txbuf+0x7cf/0xda0 [ 73.069046][ T5074] Modules linked in: [ 73.073671][ T5074] CPU: 1 PID: 5074 Comm: syz-executor206 Not tainted 6.8.0-rc7-syzkaller-02348-g75c2946db360 #0 [ 73.084318][ T5074] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 [ 73.094577][ T5074] RIP: 0010:rxrpc_alloc_data_txbuf+0x7cf/0xda0 [ 73.100770][ T5074] Code: 96 01 f7 4c 89 f7 e8 a0 f1 58 f7 45 31 f6 4c 89 f0 48 83 c4 40 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 42 96 01 f7 90 <0f> 0b 90 e9 8d f9 ff ff 44 89 fe 83 e6 01 31 ff e8 6c 9a 01 f7 44 [ 73.120904][ T5074] RSP: 0018:ffffc9000398f328 EFLAGS: 00010293 [ 73.127102][ T5074] RAX: ffffffff8a91d8de RBX: 0000000000000000 RCX: ffff8880284f5940 [ 73.135317][ T5074] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 [ 73.143340][ T5074] RBP: 0000000000000000 R08: ffffffff8a91d266 R09: 1ffffffff1f0c0fd [ 73.151389][ T5074] R10: dffffc0000000000 R11: fffffbfff1f0c0fe R12: ffff88802e3a4390 [ 73.159717][ T5074] R13: ffff88801b6b5280 R14: ffff88801caf4900 R15: 0000000000000cc0 [ 73.167761][ T5074] FS: 0000555556094380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 73.176904][ T5074] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.183548][ T5074] CR2: 0000000020005c08 CR3: 00000000755e2000 CR4: 00000000003506f0 [ 73.191545][ T5074] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.199607][ T5074] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 73.207917][ T5074] Call Trace: [ 73.211208][ T5074] [ 73.214216][ T5074] ? __warn+0x162/0x4b0 [ 73.218412][ T5074] ? rxrpc_alloc_data_txbuf+0x7cf/0xda0 [ 73.224074][ T5074] ? report_bug+0x2b3/0x500 [ 73.228724][ T5074] ? rxrpc_alloc_data_txbuf+0x7cf/0xda0 [ 73.234389][ T5074] ? handle_bug+0x3e/0x70 [ 73.238774][ T5074] ? exc_invalid_op+0x1a/0x50 [ 73.243587][ T5074] ? asm_exc_invalid_op+0x1a/0x20 [ 73.248700][ T5074] ? rxrpc_alloc_data_txbuf+0x156/0xda0 [ 73.254381][ T5074] ? rxrpc_alloc_data_txbuf+0x7ce/0xda0 [ 73.260013][ T5074] ? rxrpc_alloc_data_txbuf+0x7cf/0xda0 [ 73.271253][ T5074] ? rxrpc_alloc_data_txbuf+0x7ce/0xda0 [ 73.276986][ T5074] ? remove_wait_queue+0x33/0x130 [ 73.282267][ T5074] ? __pfx_none_alloc_txbuf+0x10/0x10 [ 73.287850][ T5074] rxrpc_send_data+0xb17/0x2800 [ 73.292843][ T5074] ? __pfx_rxrpc_send_data+0x10/0x10 [ 73.298435][ T5074] ? do_raw_spin_unlock+0x13b/0x8b0 [ 73.305205][ T5074] ? __pfx_default_wake_function+0x10/0x10 [ 73.311521][ T5074] ? rcu_is_watching+0x15/0xb0 [ 73.316466][ T5074] rxrpc_do_sendmsg+0x1569/0x1910 [ 73.322014][ T5074] ? __pfx_rxrpc_do_sendmsg+0x10/0x10 [ 73.327808][ T5074] ? rxrpc_sendmsg+0x5d8/0x920 [ 73.333071][ T5074] ? __pfx_rxrpc_sendmsg+0x10/0x10 [ 73.338353][ T5074] __sock_sendmsg+0x221/0x270 [ 73.343200][ T5074] ____sys_sendmsg+0x525/0x7d0 [ 73.348079][ T5074] ? __pfx_____sys_sendmsg+0x10/0x10 [ 73.354620][ T5074] __sys_sendmmsg+0x3b2/0x740 [ 73.359382][ T5074] ? __pfx___sys_sendmmsg+0x10/0x10 [ 73.365084][ T5074] ? do_raw_spin_lock+0x14e/0x370 [ 73.370217][ T5074] ? lockdep_hardirqs_on_prepare+0x43c/0x780 [ 73.376430][ T5074] ? _raw_spin_unlock_irq+0x23/0x50 [ 73.381700][ T5074] ? lockdep_hardirqs_on+0x98/0x140 [ 73.387159][ T5074] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 73.393635][ T5074] ? exc_page_fault+0x587/0x870 [ 73.398616][ T5074] __x64_sys_sendmmsg+0xa0/0xb0 [ 73.404201][ T5074] do_syscall_64+0xf9/0x240 [ 73.408869][ T5074] entry_SYSCALL_64_after_hwframe+0x6f/0x77 [ 73.414922][ T5074] RIP: 0033:0x7fb02c0cf369 [ 73.419376][ T5074] 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 [ 73.439847][ T5074] RSP: 002b:00007ffdc045a3f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 73.449307][ T5074] RAX: ffffffffffffffda RBX: 00007ffdc045a5c8 RCX: 00007fb02c0cf369 [ 73.457548][ T5074] RDX: 0000000000000001 RSI: 0000000020005c00 RDI: 0000000000000003 [ 73.465697][ T5074] RBP: 00007fb02c142610 R08: 00007ffdc045a5c8 R09: 00007ffdc045a5c8 [ 73.473882][ T5074] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 73.481910][ T5074] R13: 00007ffdc045a5b8 R14: 0000000000000001 R15: 0000000000000001 [ 73.490004][ T5074] [ 73.493076][ T5074] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 73.500368][ T5074] CPU: 1 PID: 5074 Comm: syz-executor206 Not tainted 6.8.0-rc7-syzkaller-02348-g75c2946db360 #0 [ 73.510968][ T5074] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 [ 73.521025][ T5074] Call Trace: [ 73.524312][ T5074] [ 73.527257][ T5074] dump_stack_lvl+0x1e7/0x2e0 [ 73.532066][ T5074] ? __pfx_dump_stack_lvl+0x10/0x10 [ 73.537282][ T5074] ? __pfx__printk+0x10/0x10 [ 73.541885][ T5074] ? vscnprintf+0x5d/0x90 [ 73.546245][ T5074] panic+0x349/0x860 [ 73.550341][ T5074] ? __warn+0x171/0x4b0 [ 73.554537][ T5074] ? __pfx_panic+0x10/0x10 [ 73.559094][ T5074] __warn+0x31c/0x4b0 [ 73.563229][ T5074] ? rxrpc_alloc_data_txbuf+0x7cf/0xda0 [ 73.569247][ T5074] report_bug+0x2b3/0x500 [ 73.574244][ T5074] ? rxrpc_alloc_data_txbuf+0x7cf/0xda0 [ 73.579873][ T5074] handle_bug+0x3e/0x70 [ 73.584054][ T5074] exc_invalid_op+0x1a/0x50 [ 73.588591][ T5074] asm_exc_invalid_op+0x1a/0x20 [ 73.593551][ T5074] RIP: 0010:rxrpc_alloc_data_txbuf+0x7cf/0xda0 [ 73.599734][ T5074] Code: 96 01 f7 4c 89 f7 e8 a0 f1 58 f7 45 31 f6 4c 89 f0 48 83 c4 40 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 42 96 01 f7 90 <0f> 0b 90 e9 8d f9 ff ff 44 89 fe 83 e6 01 31 ff e8 6c 9a 01 f7 44 [ 73.624406][ T5074] RSP: 0018:ffffc9000398f328 EFLAGS: 00010293 [ 73.630506][ T5074] RAX: ffffffff8a91d8de RBX: 0000000000000000 RCX: ffff8880284f5940 [ 73.638675][ T5074] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 [ 73.646762][ T5074] RBP: 0000000000000000 R08: ffffffff8a91d266 R09: 1ffffffff1f0c0fd [ 73.654772][ T5074] R10: dffffc0000000000 R11: fffffbfff1f0c0fe R12: ffff88802e3a4390 [ 73.663319][ T5074] R13: ffff88801b6b5280 R14: ffff88801caf4900 R15: 0000000000000cc0 [ 73.671697][ T5074] ? rxrpc_alloc_data_txbuf+0x156/0xda0 [ 73.677377][ T5074] ? rxrpc_alloc_data_txbuf+0x7ce/0xda0 [ 73.682990][ T5074] ? rxrpc_alloc_data_txbuf+0x7ce/0xda0 [ 73.690687][ T5074] ? remove_wait_queue+0x33/0x130 [ 73.696296][ T5074] ? __pfx_none_alloc_txbuf+0x10/0x10 [ 73.703705][ T5074] rxrpc_send_data+0xb17/0x2800 [ 73.709010][ T5074] ? __pfx_rxrpc_send_data+0x10/0x10 [ 73.715571][ T5074] ? do_raw_spin_unlock+0x13b/0x8b0 [ 73.721415][ T5074] ? __pfx_default_wake_function+0x10/0x10 [ 73.727381][ T5074] ? rcu_is_watching+0x15/0xb0 [ 73.733528][ T5074] rxrpc_do_sendmsg+0x1569/0x1910 [ 73.739765][ T5074] ? __pfx_rxrpc_do_sendmsg+0x10/0x10 [ 73.746244][ T5074] ? rxrpc_sendmsg+0x5d8/0x920 [ 73.751631][ T5074] ? __pfx_rxrpc_sendmsg+0x10/0x10 [ 73.759663][ T5074] __sock_sendmsg+0x221/0x270 [ 73.767520][ T5074] ____sys_sendmsg+0x525/0x7d0 [ 73.772355][ T5074] ? __pfx_____sys_sendmsg+0x10/0x10 [ 73.779269][ T5074] __sys_sendmmsg+0x3b2/0x740 [ 73.784632][ T5074] ? __pfx___sys_sendmmsg+0x10/0x10 [ 73.794608][ T5074] ? do_raw_spin_lock+0x14e/0x370 [ 73.799782][ T5074] ? lockdep_hardirqs_on_prepare+0x43c/0x780 [ 73.806515][ T5074] ? _raw_spin_unlock_irq+0x23/0x50 [ 73.811907][ T5074] ? lockdep_hardirqs_on+0x98/0x140 [ 73.817179][ T5074] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 73.824172][ T5074] ? exc_page_fault+0x587/0x870 [ 73.829405][ T5074] __x64_sys_sendmmsg+0xa0/0xb0 [ 73.834479][ T5074] do_syscall_64+0xf9/0x240 [ 73.839034][ T5074] entry_SYSCALL_64_after_hwframe+0x6f/0x77 [ 73.845230][ T5074] RIP: 0033:0x7fb02c0cf369 [ 73.849672][ T5074] 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 [ 73.870032][ T5074] RSP: 002b:00007ffdc045a3f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 73.878574][ T5074] RAX: ffffffffffffffda RBX: 00007ffdc045a5c8 RCX: 00007fb02c0cf369 [ 73.886579][ T5074] RDX: 0000000000000001 RSI: 0000000020005c00 RDI: 0000000000000003 [ 73.894686][ T5074] RBP: 00007fb02c142610 R08: 00007ffdc045a5c8 R09: 00007ffdc045a5c8 [ 73.902936][ T5074] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 73.911030][ T5074] R13: 00007ffdc045a5b8 R14: 0000000000000001 R15: 0000000000000001 [ 73.919295][ T5074] [ 73.922613][ T5074] Kernel Offset: disabled [ 73.927070][ T5074] Rebooting in 86400 seconds..