Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 39.125520] ------------[ cut here ]------------ [ 39.126502] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code! [ 39.128681] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#1: sshd/231 [ 39.130256] Modules linked in: [ 39.130891] CPU: 1 UID: 104 PID: 231 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251117 #1 PREEMPT(voluntary) [ 39.133292] Tainted: [W]=WARN [ 39.133906] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 39.135761] RIP: 0010:vmalloc_fix_flags+0x91/0xd0 [ 39.136750] 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 [ 39.140146] RSP: 0018:ffff88801927fbc0 EFLAGS: 00010286 [ 39.141192] RAX: 0000000000000000 RBX: ffffed100324ff78 RCX: ffffffff813a4050 [ 39.142574] RDX: ffff888018a63780 RSI: ffffffff813a405e RDI: 0000000000000001 [ 39.143966] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed100324ff2f [ 39.145336] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0 [ 39.146723] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff88801927fdf8 [ 39.148113] FS: 00007f757ed47900(0000) GS:ffff8880e548f000(0000) knlGS:0000000000000000 [ 39.149635] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.150793] CR2: 00007f757f2ad4a6 CR3: 000000000ab72000 CR4: 0000000000350ef0 [ 39.152174] Call Trace: [ 39.152663] [ 39.153144] ? __pfx_vmalloc_fix_flags+0x10/0x10 [ 39.154128] ? __create_object+0x59/0x80 [ 39.154916] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 39.155985] __vmalloc_noprof+0x59/0x60 [ 39.156752] bpf_prog_alloc_no_stats+0x55/0x470 [ 39.157672] ? __pfx_seccomp_check_filter+0x10/0x10 [ 39.158677] bpf_prog_alloc+0x39/0x200 [ 39.159481] ? __pfx_seccomp_check_filter+0x10/0x10 [ 39.160491] bpf_prog_create_from_user+0xb2/0x2f0 [ 39.161461] do_seccomp+0x349/0x25e0 [ 39.162259] ? find_held_lock+0x2b/0x80 [ 39.163069] ? do_prlimit+0x310/0x610 [ 39.163823] ? __pfx_do_seccomp+0x10/0x10 [ 39.164653] ? do_raw_spin_unlock+0x53/0x220 [ 39.165539] ? _raw_spin_unlock+0x1e/0x40 [ 39.166425] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 39.167471] ? static_key_count+0x60/0x80 [ 39.168323] prctl_set_seccomp+0x4e/0x70 [ 39.169163] __do_sys_prctl+0xe6c/0x1d70 [ 39.170026] ? __pfx___do_sys_prctl+0x10/0x10 [ 39.170907] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0 [ 39.171977] ? irqentry_exit+0xf3/0x650 [ 39.172744] do_syscall_64+0xbf/0x430 [ 39.173537] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 39.174551] RIP: 0033:0x7f757f2395cd [ 39.175302] 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 [ 39.178694] RSP: 002b:00007ffdebfe4ef0 EFLAGS: 00000246 ORIG_RAX: 000000000000009d [ 39.180154] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f757f2395cd [ 39.181507] RDX: 0000558713a05e00 RSI: 0000000000000002 RDI: 0000000000000016 [ 39.182879] RBP: 00007ffdebfe4f50 R08: 0000000000000000 R09: 00007ffdebfe45f0 [ 39.184253] R10: 0000000000000000 R11: 0000000000000246 R12: 00005587145febf0 [ 39.185618] R13: 00007ffdebfe5380 R14: 0000558714608380 R15: 0000558714613460 [ 39.187015] [ 39.187467] irq event stamp: 1833 [ 39.188150] hardirqs last enabled at (1843): [] __up_console_sem+0x78/0x80 [ 39.189761] hardirqs last disabled at (1852): [] __up_console_sem+0x5d/0x80 [ 39.191197] softirqs last enabled at (1756): [] handle_softirqs+0x50c/0x770 [ 39.192600] softirqs last disabled at (1747): [] __irq_exit_rcu+0xc4/0x100 [ 39.193977] ---[ end trace 0000000000000000 ]--- [ 42.577224] ------------[ cut here ]------------ [ 42.578135] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code! [ 42.579804] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#1: sshd/241 [ 42.580994] Modules linked in: [ 42.581487] CPU: 1 UID: 104 PID: 241 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251117 #1 PREEMPT(voluntary) [ 42.583212] Tainted: [W]=WARN [ 42.583692] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 42.584963] RIP: 0010:vmalloc_fix_flags+0x91/0xd0 [ 42.585716] 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 [ 42.588504] RSP: 0018:ffff8880138efbc0 EFLAGS: 00010286 [ 42.589349] RAX: 0000000000000000 RBX: ffffed100271df78 RCX: ffffffff813a4050 [ 42.590488] RDX: ffff88801b788000 RSI: ffffffff813a405e RDI: 0000000000000001 [ 42.591601] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed100271df2f [ 42.592704] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0 [ 42.593815] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff8880138efdf8 [ 42.594964] FS: 00007fc1afb46900(0000) GS:ffff8880e548f000(0000) knlGS:0000000000000000 [ 42.596201] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.597122] CR2: 00007fc1b0038580 CR3: 000000000e1d6000 CR4: 0000000000350ef0 [ 42.598257] Call Trace: [ 42.598659] [ 42.599058] ? __pfx_vmalloc_fix_flags+0x10/0x10 [ 42.599804] ? __create_object+0x59/0x80 [ 42.600495] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 42.601335] __vmalloc_noprof+0x59/0x60 [ 42.602010] bpf_prog_alloc_no_stats+0x55/0x470 [ 42.602729] ? __pfx_seccomp_check_filter+0x10/0x10 [ 42.603533] bpf_prog_alloc+0x39/0x200 [ 42.604190] ? __pfx_seccomp_check_filter+0x10/0x10 [ 42.604989] bpf_prog_create_from_user+0xb2/0x2f0 [ 42.605728] do_seccomp+0x349/0x25e0 [ 42.606358] ? __pfx_css_rstat_updated+0x10/0x10 [ 42.607137] ? __pfx_do_seccomp+0x10/0x10 [ 42.607788] ? find_held_lock+0x2b/0x80 [ 42.608455] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 42.609304] ? static_key_count+0x60/0x80 [ 42.610007] prctl_set_seccomp+0x4e/0x70 [ 42.610647] __do_sys_prctl+0xe6c/0x1d70 [ 42.611328] ? __pfx___do_sys_prctl+0x10/0x10 [ 42.612078] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 42.612874] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0 [ 42.613706] ? irqentry_exit+0xf3/0x650 [ 42.614382] do_syscall_64+0xbf/0x430 [ 42.615019] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 42.615799] RIP: 0033:0x7fc1b00385cd [ 42.616829] 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 [ 42.619588] RSP: 002b:00007ffdd6d43cc0 EFLAGS: 00000246 ORIG_RAX: 000000000000009d [ 42.620764] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc1b00385cd [ 42.621893] RDX: 00005557c63d3e00 RSI: 0000000000000002 RDI: 0000000000000016 [ 42.623023] RBP: 00007ffdd6d43d20 R08: 0000000000000000 R09: 00007ffdd6d433c0 [ 42.624140] R10: 0000000000000000 R11: 0000000000000246 R12: 00005557f1c34ad0 [ 42.625257] R13: 00007ffdd6d44150 R14: 00005557f1c35bc0 R15: 00005557f1c46780 [ 42.626399] [ 42.626772] irq event stamp: 1841 [ 42.627343] hardirqs last enabled at (1851): [] __up_console_sem+0x78/0x80 [ 42.628665] hardirqs last disabled at (1860): [] __up_console_sem+0x5d/0x80 [ 42.630005] softirqs last enabled at (1754): [] handle_softirqs+0x50c/0x770 [ 42.631344] softirqs last disabled at (1647): [] __irq_exit_rcu+0xc4/0x100 [ 42.632644] ---[ end trace 0000000000000000 ]--- [ 43.447756] ------------[ cut here ]------------ [ 43.448769] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code! [ 43.451092] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#0: sshd/249 [ 43.452740] Modules linked in: [ 43.453437] CPU: 0 UID: 104 PID: 249 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251117 #1 PREEMPT(voluntary) [ 43.455680] Tainted: [W]=WARN [ 43.456616] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 43.458186] RIP: 0010:vmalloc_fix_flags+0x91/0xd0 [ 43.459140] 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 [ 43.462400] RSP: 0018:ffff888017eb7bc0 EFLAGS: 00010286 [ 43.463403] RAX: 0000000000000000 RBX: ffffed1002fd6f78 RCX: ffffffff813a4050 [ 43.464713] RDX: ffff888013a73780 RSI: ffffffff813a405e RDI: 0000000000000001 [ 43.466033] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed1002fd6f2f [ 43.467340] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0 [ 43.468649] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff888017eb7df8 [ 43.469979] FS: 00007fed02db7900(0000) GS:ffff8880e538f000(0000) knlGS:0000000000000000 [ 43.471459] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.472546] CR2: 00007fff6afd3ef7 CR3: 0000000013ed2000 CR4: 0000000000350ef0 [ 43.473859] Call Trace: [ 43.474386] [ 43.474805] ? __pfx_vmalloc_fix_flags+0x10/0x10 [ 43.475725] ? __create_object+0x59/0x80 [ 43.476529] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 43.477523] __vmalloc_noprof+0x59/0x60 [ 43.478313] bpf_prog_alloc_no_stats+0x55/0x470 [ 43.479201] ? __pfx_seccomp_check_filter+0x10/0x10 [ 43.480161] bpf_prog_alloc+0x39/0x200 [ 43.480873] ? __pfx_seccomp_check_filter+0x10/0x10 [ 43.481827] bpf_prog_create_from_user+0xb2/0x2f0 [ 43.482762] do_seccomp+0x349/0x25e0 [ 43.483507] ? find_held_lock+0x2b/0x80 [ 43.484292] ? do_prlimit+0x310/0x610 [ 43.485044] ? __pfx_do_seccomp+0x10/0x10 [ 43.485800] ? do_raw_spin_unlock+0x53/0x220 [ 43.486684] ? _raw_spin_unlock+0x1e/0x40 [ 43.487502] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 43.488521] ? static_key_count+0x60/0x80 [ 43.489369] prctl_set_seccomp+0x4e/0x70 [ 43.490201] __do_sys_prctl+0xe6c/0x1d70 [ 43.491041] ? __pfx___do_sys_prctl+0x10/0x10 [ 43.491903] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0 [ 43.492962] ? irqentry_exit+0xf3/0x650 [ 43.493723] do_syscall_64+0xbf/0x430 [ 43.494514] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 43.495507] RIP: 0033:0x7fed032a95cd [ 43.496254] 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 [ 43.499640] RSP: 002b:00007fff6afd19f0 EFLAGS: 00000246 ORIG_RAX: 000000000000009d [ 43.501071] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fed032a95cd [ 43.502456] RDX: 000055563733fe00 RSI: 0000000000000002 RDI: 0000000000000016 [ 43.503723] RBP: 00007fff6afd1a50 R08: 0000000000000000 R09: 00007fff6afd10f0 [ 43.504990] R10: 0000000000000000 R11: 0000000000000246 R12: 000055565191aad0 [ 43.506263] R13: 00007fff6afd1e80 R14: 000055565191bbc0 R15: 000055565192c780 [ 43.507556] [ 43.508025] irq event stamp: 1769 [ 43.508631] hardirqs last enabled at (1777): [] __up_console_sem+0x78/0x80 [ 43.510173] hardirqs last disabled at (1786): [] __up_console_sem+0x5d/0x80 [ 43.511689] softirqs last enabled at (1622): [] handle_softirqs+0x50c/0x770 [ 43.513238] softirqs last disabled at (1617): [] __irq_exit_rcu+0xc4/0x100 [ 43.514670] ---[ end trace 0000000000000000 ]--- Warning: Permanently added '[localhost]:50255' (ECDSA) to the list of known hosts. 2025/11/17 23:52:19 fuzzer started 2025/11/17 23:52:19 dialing manager at localhost:37895 2025/11/17 23:52:19 checking machine... 2025/11/17 23:52:19 checking revisions... [ 44.447095] kmemleak: Automatic memory scanning thread ended 2025/11/17 23:52:19 testing simple program... [ 44.531518] cgroup: Unknown subsys name 'net' [ 44.595701] cgroup: Unknown subsys name 'cpuset' [ 44.608278] cgroup: Unknown subsys name 'rlimit' executing program executing program VM DIAGNOSIS: 23:52:18 Registers: info registers vcpu 0 RAX=00000000000469e5 RBX=0000000000000000 RCX=ffffffff84c72d57 RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff814d2c90 RBP=dffffc0000000000 RSP=ffffffff85c07e00 R8 =0000000000000001 R9 =ffffed100d9c639a R10=ffff88806ce31cd3 R11=0000000000000001 R12=ffffffff8664f650 R13=1ffffffff0b80fc7 R14=0000000000000000 R15=0000000000000000 RIP=ffffffff84c7174e RFL=00000202 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=1 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 fffffe3d00000000 00000000 00000000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00005557f1c68000 CR3=0000000020003000 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=77b80000000000000008000000000013 XMM02=7ca000000000000e77cc000000000000 XMM03=00080000000000137ce000000000000e XMM04=784c0000000000000008000000000013 XMM05=00080000000000137de000000000000e XMM06=7da000000000000e781c000000000000 XMM07=78090000000000000008000000000013 XMM08=000000000014256000000000000ea58d XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000000 RBX=0000000000000100 RCX=ffffffff81bc36b4 RDX=ffff88800f68b780 RSI=ffffffff81bc36c2 RDI=ffff88801b70fc38 RBP=ffff88801b70faa8 RSP=ffff88801b70fa00 R8 =0000000000000001 R9 =ffffffff81bc35e6 R10=0000000000000000 R11=0000000000000001 R12=ffff88801b70fc74 R13=0000000000000000 R14=ffff88801b70fc38 R15=0000000000000000 RIP=ffffffff81bbc0a1 RFL=00000293 [--S-A-C] 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 00007fc1afb46900 00000000 00000000 GS =0000 ffff8880e548f000 00000000 00000000 LDT=0000 fffffe4900000000 00000000 00000000 TR =0040 fffffe000004a000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000048000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007fc1b00fb650 CR3=0000000020003000 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=ffffffff00ffffffffffffffffffffff XMM01=707465675f6c697475646f6d6d61705f XMM02=ff000000000000ff0000000000ff0000 XMM03=66207463656e6e6f6373696420646576 XMM04=00000000000000000000000000000000 XMM05=00000000000000000000000000000000 XMM06=0d0c0f0e09080b0a0504070601000302 XMM07=00000000000000000000000000000000 XMM08=000a0d732a2e25006c61746166003367 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000