Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 39.011984] ------------[ cut here ]------------ [ 39.012938] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code! [ 39.015027] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#1: sshd/234 [ 39.016489] Modules linked in: [ 39.017093] CPU: 1 UID: 104 PID: 234 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251117 #1 PREEMPT(voluntary) [ 39.019065] Tainted: [W]=WARN [ 39.019680] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 39.021159] RIP: 0010:vmalloc_fix_flags+0x91/0xd0 [ 39.022089] Code: e0 ad 11 00 81 e6 1f 52 ee ff 89 4c 24 40 89 74 24 30 90 48 c7 c7 00 38 f1 84 4c 8d 44 24 40 48 8d 54 24 30 e8 a0 7c 94 ff 90 <0f> 0b 90 90 8b 44 24 40 48 c7 03 00 00 00 00 c7 43 08 00 00 00 00 [ 39.025280] RSP: 0018:ffff888013b1fbc0 EFLAGS: 00010286 [ 39.026210] RAX: 0000000000000000 RBX: ffffed1002763f78 RCX: ffffffff813a4050 [ 39.027533] RDX: ffff888019453780 RSI: ffffffff813a405e RDI: 0000000000000001 [ 39.028803] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed1002763f2f [ 39.030108] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0 [ 39.031371] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff888013b1fdf8 [ 39.032660] FS: 00007f047d3ad900(0000) GS:ffff8880e548f000(0000) knlGS:0000000000000000 [ 39.034114] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.035167] CR2: 00007ffd7573def8 CR3: 000000000c1f5000 CR4: 0000000000350ef0 [ 39.036473] Call Trace: [ 39.036946] [ 39.037428] ? __pfx_vmalloc_fix_flags+0x10/0x10 [ 39.038345] ? __create_object+0x59/0x80 [ 39.039083] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 39.040054] __vmalloc_noprof+0x59/0x60 [ 39.040803] bpf_prog_alloc_no_stats+0x55/0x470 [ 39.041682] ? __pfx_seccomp_check_filter+0x10/0x10 [ 39.042613] bpf_prog_alloc+0x39/0x200 [ 39.043352] ? __pfx_seccomp_check_filter+0x10/0x10 [ 39.044290] bpf_prog_create_from_user+0xb2/0x2f0 [ 39.045171] do_seccomp+0x349/0x25e0 [ 39.045898] ? find_held_lock+0x2b/0x80 [ 39.046657] ? do_prlimit+0x310/0x610 [ 39.047404] ? __pfx_do_seccomp+0x10/0x10 [ 39.048134] ? do_raw_spin_unlock+0x53/0x220 [ 39.049071] ? _raw_spin_unlock+0x1e/0x40 [ 39.049874] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 39.050844] ? static_key_count+0x60/0x80 [ 39.051650] prctl_set_seccomp+0x4e/0x70 [ 39.052438] __do_sys_prctl+0xe6c/0x1d70 [ 39.053182] ? __pfx___do_sys_prctl+0x10/0x10 [ 39.054050] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0 [ 39.055012] ? irqentry_exit+0xf3/0x650 [ 39.055773] do_syscall_64+0xbf/0x430 [ 39.056517] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 39.057485] RIP: 0033:0x7f047d89f5cd [ 39.058144] Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 08 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 9d 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 1b 48 8b 4c 24 18 64 48 2b 0c 25 28 00 00 00 [ 39.061342] RSP: 002b:00007ffd7573c7c0 EFLAGS: 00000246 ORIG_RAX: 000000000000009d [ 39.062687] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f047d89f5cd [ 39.063952] RDX: 00005642e156ee00 RSI: 0000000000000002 RDI: 0000000000000016 [ 39.065269] RBP: 00007ffd7573c820 R08: 0000000000000000 R09: 00007ffd7573bec0 [ 39.066545] R10: 0000000000000000 R11: 0000000000000246 R12: 00005643068cead0 [ 39.067811] R13: 00007ffd7573cc50 R14: 00005643068cfbc0 R15: 00005643068e0780 [ 39.069122] [ 39.069597] irq event stamp: 1745 [ 39.070201] hardirqs last enabled at (1753): [] __up_console_sem+0x78/0x80 [ 39.071762] hardirqs last disabled at (1764): [] __up_console_sem+0x5d/0x80 [ 39.073294] softirqs last enabled at (1702): [] handle_softirqs+0x50c/0x770 [ 39.074850] softirqs last disabled at (1697): [] __irq_exit_rcu+0xc4/0x100 [ 39.076375] ---[ end trace 0000000000000000 ]--- [ 42.364312] ------------[ cut here ]------------ [ 42.365190] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code! [ 42.367313] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#0: sshd/242 [ 42.368741] Modules linked in: [ 42.369379] CPU: 0 UID: 104 PID: 242 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251117 #1 PREEMPT(voluntary) [ 42.371375] Tainted: [W]=WARN [ 42.371927] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 42.373650] RIP: 0010:vmalloc_fix_flags+0x91/0xd0 [ 42.374622] Code: e0 ad 11 00 81 e6 1f 52 ee ff 89 4c 24 40 89 74 24 30 90 48 c7 c7 00 38 f1 84 4c 8d 44 24 40 48 8d 54 24 30 e8 a0 7c 94 ff 90 <0f> 0b 90 90 8b 44 24 40 48 c7 03 00 00 00 00 c7 43 08 00 00 00 00 [ 42.377797] RSP: 0018:ffff88801682fbc0 EFLAGS: 00010286 [ 42.378793] RAX: 0000000000000000 RBX: ffffed1002d05f78 RCX: ffffffff813a4050 [ 42.380084] RDX: ffff8880175db780 RSI: ffffffff813a405e RDI: 0000000000000001 [ 42.381397] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed1002d05f2f [ 42.382683] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0 [ 42.383966] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff88801682fdf8 [ 42.385286] FS: 00007f7f66cd0900(0000) GS:ffff8880e538f000(0000) knlGS:0000000000000000 [ 42.386743] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.387816] CR2: 00007f7f672364a6 CR3: 000000001fe91000 CR4: 0000000000350ef0 [ 42.389123] Call Trace: [ 42.389643] [ 42.390059] ? __pfx_vmalloc_fix_flags+0x10/0x10 [ 42.390968] ? __create_object+0x59/0x80 [ 42.391767] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 42.392752] __vmalloc_noprof+0x59/0x60 [ 42.393519] bpf_prog_alloc_no_stats+0x55/0x470 [ 42.394411] ? __pfx_seccomp_check_filter+0x10/0x10 [ 42.395351] bpf_prog_alloc+0x39/0x200 [ 42.396039] ? __pfx_seccomp_check_filter+0x10/0x10 [ 42.396970] bpf_prog_create_from_user+0xb2/0x2f0 [ 42.397895] do_seccomp+0x349/0x25e0 [ 42.398644] ? find_held_lock+0x2b/0x80 [ 42.399417] ? do_prlimit+0x310/0x610 [ 42.400120] ? __pfx_do_seccomp+0x10/0x10 [ 42.400908] ? do_raw_spin_unlock+0x53/0x220 [ 42.401761] ? _raw_spin_unlock+0x1e/0x40 [ 42.402551] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 42.403528] ? static_key_count+0x60/0x80 [ 42.404338] prctl_set_seccomp+0x4e/0x70 [ 42.405092] __do_sys_prctl+0xe6c/0x1d70 [ 42.405871] ? __pfx___do_sys_prctl+0x10/0x10 [ 42.406743] ? trace_irq_enable.constprop.0+0x26/0x100 [ 42.407736] do_syscall_64+0xbf/0x430 [ 42.408481] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 42.409457] RIP: 0033:0x7f7f671c25cd [ 42.410113] Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 08 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 9d 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 1b 48 8b 4c 24 18 64 48 2b 0c 25 28 00 00 00 [ 42.413316] RSP: 002b:00007fff794cdf70 EFLAGS: 00000246 ORIG_RAX: 000000000000009d [ 42.414675] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7f671c25cd [ 42.415975] RDX: 0000558b85d11e00 RSI: 0000000000000002 RDI: 0000000000000016 [ 42.417302] RBP: 00007fff794cdfd0 R08: 0000000000000000 R09: 00007fff794cd670 [ 42.418632] R10: 0000000000000000 R11: 0000000000000246 R12: 0000558b8d2292b0 [ 42.419916] R13: 00007fff794ce400 R14: 0000558b8d22bd20 R15: 0000558b8d23d8d0 [ 42.421264] [ 42.421696] irq event stamp: 1789 [ 42.422358] hardirqs last enabled at (1799): [] __up_console_sem+0x78/0x80 [ 42.423878] hardirqs last disabled at (1808): [] __up_console_sem+0x5d/0x80 [ 42.425412] softirqs last enabled at (1710): [] handle_softirqs+0x50c/0x770 [ 42.426947] softirqs last disabled at (1705): [] __irq_exit_rcu+0xc4/0x100 [ 42.428447] ---[ end trace 0000000000000000 ]--- [ 43.210653] ------------[ cut here ]------------ [ 43.211281] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code! [ 43.212633] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#0: sshd/250 [ 43.213620] Modules linked in: [ 43.214019] CPU: 0 UID: 104 PID: 250 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251117 #1 PREEMPT(voluntary) [ 43.215961] Tainted: [W]=WARN [ 43.216374] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 43.217387] RIP: 0010:vmalloc_fix_flags+0x91/0xd0 [ 43.217975] Code: e0 ad 11 00 81 e6 1f 52 ee ff 89 4c 24 40 89 74 24 30 90 48 c7 c7 00 38 f1 84 4c 8d 44 24 40 48 8d 54 24 30 e8 a0 7c 94 ff 90 <0f> 0b 90 90 8b 44 24 40 48 c7 03 00 00 00 00 c7 43 08 00 00 00 00 [ 43.220095] RSP: 0018:ffff88800ef6fbc0 EFLAGS: 00010286 [ 43.220753] RAX: 0000000000000000 RBX: ffffed1001dedf78 RCX: ffffffff813a4050 [ 43.221616] RDX: ffff8880159e3780 RSI: ffffffff813a405e RDI: 0000000000000001 [ 43.222471] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed1001dedf2f [ 43.223331] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0 [ 43.224156] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff88800ef6fdf8 [ 43.224997] FS: 00007f8b9ab0e900(0000) GS:ffff8880e538f000(0000) knlGS:0000000000000000 [ 43.225957] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.226669] CR2: 00007f8b9b0744a6 CR3: 000000001b5f6000 CR4: 0000000000350ef0 [ 43.227521] Call Trace: [ 43.227827] [ 43.228106] ? __pfx_vmalloc_fix_flags+0x10/0x10 [ 43.228707] ? __create_object+0x59/0x80 [ 43.229214] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 43.229857] __vmalloc_noprof+0x59/0x60 [ 43.230355] bpf_prog_alloc_no_stats+0x55/0x470 [ 43.230899] ? __pfx_seccomp_check_filter+0x10/0x10 [ 43.231521] bpf_prog_alloc+0x39/0x200 [ 43.231981] ? __pfx_seccomp_check_filter+0x10/0x10 [ 43.232587] bpf_prog_create_from_user+0xb2/0x2f0 [ 43.233211] do_seccomp+0x349/0x25e0 [ 43.233686] ? find_held_lock+0x2b/0x80 [ 43.234154] ? do_prlimit+0x310/0x610 [ 43.234654] ? __pfx_do_seccomp+0x10/0x10 [ 43.235147] ? do_raw_spin_unlock+0x53/0x220 [ 43.235699] ? _raw_spin_unlock+0x1e/0x40 [ 43.236186] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 43.236823] ? static_key_count+0x60/0x80 [ 43.237384] prctl_set_seccomp+0x4e/0x70 [ 43.237865] __do_sys_prctl+0xe6c/0x1d70 [ 43.238384] ? __pfx___do_sys_prctl+0x10/0x10 [ 43.238925] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0 [ 43.239574] ? irqentry_exit+0xf3/0x650 [ 43.240049] do_syscall_64+0xbf/0x430 [ 43.240548] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 43.241161] RIP: 0033:0x7f8b9b0005cd [ 43.241623] Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 08 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 9d 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 1b 48 8b 4c 24 18 64 48 2b 0c 25 28 00 00 00 [ 43.243720] RSP: 002b:00007ffccf85a140 EFLAGS: 00000246 ORIG_RAX: 000000000000009d [ 43.244618] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8b9b0005cd [ 43.245474] RDX: 0000560c7599ae00 RSI: 0000000000000002 RDI: 0000000000000016 [ 43.246330] RBP: 00007ffccf85a1a0 R08: 0000000000000000 R09: 00007ffccf859840 [ 43.247143] R10: 0000000000000000 R11: 0000000000000246 R12: 0000560c91d20ad0 [ 43.247986] R13: 00007ffccf85a5d0 R14: 0000560c91d21bc0 R15: 0000560c91d32780 [ 43.248853] [ 43.249147] irq event stamp: 1729 [ 43.249580] hardirqs last enabled at (1739): [] __up_console_sem+0x78/0x80 [ 43.250586] hardirqs last disabled at (1748): [] __up_console_sem+0x5d/0x80 [ 43.251595] softirqs last enabled at (1342): [] handle_softirqs+0x50c/0x770 [ 43.252615] softirqs last disabled at (1331): [] __irq_exit_rcu+0xc4/0x100 [ 43.253623] ---[ end trace 0000000000000000 ]--- Warning: Permanently added '[localhost]:27357' (ECDSA) to the list of known hosts. 2025/11/17 15:39:05 fuzzer started 2025/11/17 15:39:05 dialing manager at localhost:37895 2025/11/17 15:39:06 checking machine... 2025/11/17 15:39:06 checking revisions... [ 44.137267] kmemleak: Automatic memory scanning thread ended 2025/11/17 15:39:06 testing simple program... [ 44.221723] cgroup: Unknown subsys name 'net' [ 44.288768] cgroup: Unknown subsys name 'cpuset' [ 44.306279] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program VM DIAGNOSIS: 15:39:05 Registers: info registers vcpu 0 RAX=ffff888009627840 RBX=ffff8880096278d8 RCX=ffffffff8136096e RDX=0000000000000001 RSI=0000000000000070 RDI=ffff888009627840 RBP=ffff888009627840 RSP=ffff8880096277c0 R8 =0000000000000000 R9 =0000000000000000 R10=ffffed1001c3aa00 R11=0000000000000001 R12=0000000000000070 R13=0000000000000000 R14=ffff888009611bc0 R15=ffff888009627840 RIP=ffffffff81b2cf12 RFL=00000202 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0000 0000000000000000 00000000 00000000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 00000000 00000000 FS =0000 0000000000000000 00000000 00000000 GS =0000 ffff8880e538f000 00000000 00000000 LDT=0000 fffffe4900000000 00000000 00000000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007f9c5cf440e0 CR3=000000001ff23000 CR4=00350ef0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000ffff0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 XMM00=00000000000000000000000000000000 XMM01=6e69676f6c5f6d61702c78756e696c65 XMM02=755f6d61702c74696d7265705f6d6170 XMM03=2c766e655f6d61702c7374696d696c5f XMM04=6d61702c766e655f6d61702c7374696d XMM05=78696e755f6d61702c74696d7265705f XMM06=6469756e69676f6c5f6d61702c78756e XMM07=672065736f6c635f6e6f69737365733a XMM08=61662029286e65706f5f746964756100 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000000 RBX=0000000016bd9067 RCX=ffffffff819f393f RDX=ffff888017c0b780 RSI=ffffffff819f394d RDI=0000000000000007 RBP=0000000000000000 RSP=ffff8880159a7580 R8 =ffff8880159a7860 R9 =ffffed10017e4848 R10=0000000000000000 R11=0000000000000001 R12=00007f7fffffffff R13=00007f067ab37000 R14=00007f067ab36fff R15=dffffc0000000000 RIP=ffffffff81751c78 RFL=00000246 [---Z-P-] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0000 0000000000000000 00000000 00000000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 00000000 00000000 FS =0000 0000000000000000 00000000 00000000 GS =0000 ffff8880e548f000 00000000 00000000 LDT=0000 fffffe0b00000000 00000000 00000000 TR =0040 fffffe000004a000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000048000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007f067af78790 CR3=00000000099c0000 CR4=00350ef0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000ffff0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 XMM00=0000000000000340fffffffe7ffbfeff XMM01=00000000000000000000000000000000 XMM02=00000000000000020000000000000000 XMM03=00000000000000008000000000000006 XMM04=00000000000000000000000000000000 XMM05=00000000000000000000000000000000 XMM06=00000000000000000000000000000000 XMM07=00000000000000000000000000000000 XMM08=2520737365726464616e657473696c00 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000