Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 38.994597] ------------[ cut here ]------------ [ 38.995553] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code! [ 38.997630] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#0: sshd/232 [ 38.999055] Modules linked in: [ 39.000038] CPU: 0 UID: 104 PID: 232 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251117 #1 PREEMPT(voluntary) [ 39.001990] Tainted: [W]=WARN [ 39.002563] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 39.003985] RIP: 0010:vmalloc_fix_flags+0x91/0xd0 [ 39.004876] 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 [ 39.007979] RSP: 0018:ffff888014eb7bc0 EFLAGS: 00010286 [ 39.008966] RAX: 0000000000000000 RBX: ffffed10029d6f78 RCX: ffffffff813a4050 [ 39.010198] RDX: ffff888014ffd340 RSI: ffffffff813a405e RDI: 0000000000000001 [ 39.011441] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed10029d6f2f [ 39.012748] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0 [ 39.013965] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff888014eb7df8 [ 39.015203] FS: 00007fba6708e900(0000) GS:ffff8880e538f000(0000) knlGS:0000000000000000 [ 39.016605] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.017652] CR2: 00007ffe19561ef8 CR3: 000000000a140000 CR4: 0000000000350ef0 [ 39.018876] Call Trace: [ 39.019358] [ 39.019752] ? __pfx_vmalloc_fix_flags+0x10/0x10 [ 39.020625] ? __create_object+0x59/0x80 [ 39.021385] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 39.022318] __vmalloc_noprof+0x59/0x60 [ 39.023007] bpf_prog_alloc_no_stats+0x55/0x470 [ 39.023877] ? __pfx_seccomp_check_filter+0x10/0x10 [ 39.024778] bpf_prog_alloc+0x39/0x200 [ 39.025483] ? __pfx_seccomp_check_filter+0x10/0x10 [ 39.026375] bpf_prog_create_from_user+0xb2/0x2f0 [ 39.027266] do_seccomp+0x349/0x25e0 [ 39.027925] ? find_held_lock+0x2b/0x80 [ 39.028656] ? do_prlimit+0x310/0x610 [ 39.029367] ? __pfx_do_seccomp+0x10/0x10 [ 39.030076] ? do_raw_spin_unlock+0x53/0x220 [ 39.030888] ? _raw_spin_unlock+0x1e/0x40 [ 39.031621] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 39.032559] ? static_key_count+0x60/0x80 [ 39.033340] prctl_set_seccomp+0x4e/0x70 [ 39.034045] __do_sys_prctl+0xe6c/0x1d70 [ 39.034832] ? __pfx___do_sys_prctl+0x10/0x10 [ 39.035653] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0 [ 39.036610] ? irqentry_exit+0xf3/0x650 [ 39.037349] do_syscall_64+0xbf/0x430 [ 39.038019] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 39.038957] RIP: 0033:0x7fba675805cd [ 39.039631] 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 [ 39.042751] RSP: 002b:00007ffe195606a0 EFLAGS: 00000246 ORIG_RAX: 000000000000009d [ 39.044133] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fba675805cd [ 39.045371] RDX: 00005568a6d19e00 RSI: 0000000000000002 RDI: 0000000000000016 [ 39.046636] RBP: 00007ffe19560700 R08: 0000000000000000 R09: 00007ffe1955fda0 [ 39.047883] R10: 0000000000000000 R11: 0000000000000246 R12: 00005568cb4fead0 [ 39.049114] R13: 00007ffe19560b30 R14: 00005568cb4ffbc0 R15: 00005568cb510780 [ 39.050410] [ 39.050816] irq event stamp: 1745 [ 39.051429] hardirqs last enabled at (1755): [] __up_console_sem+0x78/0x80 [ 39.052918] hardirqs last disabled at (1764): [] __up_console_sem+0x5d/0x80 [ 39.054427] softirqs last enabled at (1734): [] handle_softirqs+0x50c/0x770 [ 39.055916] softirqs last disabled at (1727): [] __irq_exit_rcu+0xc4/0x100 [ 39.057234] ---[ end trace 0000000000000000 ]--- [ 42.459070] ------------[ cut here ]------------ [ 42.460018] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code! [ 42.462063] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#1: sshd/241 [ 42.463499] Modules linked in: [ 42.464119] CPU: 1 UID: 104 PID: 241 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251117 #1 PREEMPT(voluntary) [ 42.466145] Tainted: [W]=WARN [ 42.466748] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 42.468202] RIP: 0010:vmalloc_fix_flags+0x91/0xd0 [ 42.469066] 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 [ 42.472486] RSP: 0018:ffff888016087bc0 EFLAGS: 00010286 [ 42.473530] RAX: 0000000000000000 RBX: ffffed1002c10f78 RCX: ffffffff813a4050 [ 42.474814] RDX: ffff888016008000 RSI: ffffffff813a405e RDI: 0000000000000001 [ 42.476096] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed1002c10f2f [ 42.477381] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0 [ 42.478658] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff888016087df8 [ 42.479961] FS: 00007f15e2a0b900(0000) GS:ffff8880e548f000(0000) knlGS:0000000000000000 [ 42.481372] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.482422] CR2: 00007ffc234b4ef8 CR3: 0000000017496000 CR4: 0000000000350ef0 [ 42.483722] Call Trace: [ 42.484224] [ 42.484631] ? __pfx_vmalloc_fix_flags+0x10/0x10 [ 42.485530] ? __create_object+0x59/0x80 [ 42.486320] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 42.487282] __vmalloc_noprof+0x59/0x60 [ 42.488012] bpf_prog_alloc_no_stats+0x55/0x470 [ 42.488875] ? __pfx_seccomp_check_filter+0x10/0x10 [ 42.489802] bpf_prog_alloc+0x39/0x200 [ 42.490533] ? __pfx_seccomp_check_filter+0x10/0x10 [ 42.491459] bpf_prog_create_from_user+0xb2/0x2f0 [ 42.492367] do_seccomp+0x349/0x25e0 [ 42.493044] ? find_held_lock+0x2b/0x80 [ 42.493797] ? do_prlimit+0x310/0x610 [ 42.494531] ? __pfx_do_seccomp+0x10/0x10 [ 42.495309] ? do_raw_spin_unlock+0x53/0x220 [ 42.496122] ? _raw_spin_unlock+0x1e/0x40 [ 42.496908] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 42.497876] ? static_key_count+0x60/0x80 [ 42.498672] prctl_set_seccomp+0x4e/0x70 [ 42.499456] __do_sys_prctl+0xe6c/0x1d70 [ 42.500262] ? __pfx___do_sys_prctl+0x10/0x10 [ 42.501076] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0 [ 42.502046] ? irqentry_exit+0xf3/0x650 [ 42.502805] do_syscall_64+0xbf/0x430 [ 42.503551] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 42.504520] RIP: 0033:0x7f15e2efd5cd [ 42.505234] 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 [ 42.508398] RSP: 002b:00007ffc234b3130 EFLAGS: 00000246 ORIG_RAX: 000000000000009d [ 42.509756] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f15e2efd5cd [ 42.511042] RDX: 00005649eda4ae00 RSI: 0000000000000002 RDI: 0000000000000016 [ 42.512347] RBP: 00007ffc234b3190 R08: 0000000000000000 R09: 00007ffc234b2830 [ 42.513635] R10: 0000000000000000 R11: 0000000000000246 R12: 00005649fbeb1bf0 [ 42.514904] R13: 00007ffc234b35c0 R14: 00005649fbebb380 R15: 00005649fbec6460 [ 42.516218] [ 42.516642] irq event stamp: 1831 [ 42.517293] hardirqs last enabled at (1841): [] __up_console_sem+0x78/0x80 [ 42.518829] hardirqs last disabled at (1850): [] __up_console_sem+0x5d/0x80 [ 42.520362] softirqs last enabled at (1770): [] handle_softirqs+0x50c/0x770 [ 42.521912] softirqs last disabled at (1765): [] __irq_exit_rcu+0xc4/0x100 [ 42.523425] ---[ end trace 0000000000000000 ]--- [ 43.364029] ------------[ cut here ]------------ [ 43.364931] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code! [ 43.366983] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#1: sshd/248 [ 43.368536] Modules linked in: [ 43.369136] CPU: 1 UID: 104 PID: 248 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251117 #1 PREEMPT(voluntary) [ 43.371191] Tainted: [W]=WARN [ 43.371745] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 43.373243] RIP: 0010:vmalloc_fix_flags+0x91/0xd0 [ 43.374119] 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 [ 43.377353] RSP: 0018:ffff888016777bc0 EFLAGS: 00010286 [ 43.378348] RAX: 0000000000000000 RBX: ffffed1002ceef78 RCX: ffffffff813a4050 [ 43.379636] RDX: ffff88801b901bc0 RSI: ffffffff813a405e RDI: 0000000000000001 [ 43.380953] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed1002ceef2f [ 43.382242] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0 [ 43.383550] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff888016777df8 [ 43.384841] FS: 00007f2650da8900(0000) GS:ffff8880e548f000(0000) knlGS:0000000000000000 [ 43.386299] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.387359] CR2: 00007ffedd6a3ef8 CR3: 000000000b6d9000 CR4: 0000000000350ef0 [ 43.388655] Call Trace: [ 43.389118] [ 43.389580] ? __pfx_vmalloc_fix_flags+0x10/0x10 [ 43.390482] ? __create_object+0x59/0x80 [ 43.391275] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 43.392261] __vmalloc_noprof+0x59/0x60 [ 43.392999] bpf_prog_alloc_no_stats+0x55/0x470 [ 43.393874] ? __pfx_seccomp_check_filter+0x10/0x10 [ 43.394803] bpf_prog_alloc+0x39/0x200 [ 43.395556] ? __pfx_seccomp_check_filter+0x10/0x10 [ 43.396513] bpf_prog_create_from_user+0xb2/0x2f0 [ 43.397429] do_seccomp+0x349/0x25e0 [ 43.398104] ? find_held_lock+0x2b/0x80 [ 43.398889] ? do_prlimit+0x310/0x610 [ 43.399640] ? __pfx_do_seccomp+0x10/0x10 [ 43.400455] ? do_raw_spin_unlock+0x53/0x220 [ 43.401304] ? _raw_spin_unlock+0x1e/0x40 [ 43.402044] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 43.403024] ? static_key_count+0x60/0x80 [ 43.403853] prctl_set_seccomp+0x4e/0x70 [ 43.404643] __do_sys_prctl+0xe6c/0x1d70 [ 43.405441] ? __pfx___do_sys_prctl+0x10/0x10 [ 43.406312] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0 [ 43.407302] ? irqentry_exit+0xf3/0x650 [ 43.408042] do_syscall_64+0xbf/0x430 [ 43.408785] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 43.409745] RIP: 0033:0x7f265129a5cd [ 43.410455] 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 [ 43.413652] RSP: 002b:00007ffedd6a2bb0 EFLAGS: 00000246 ORIG_RAX: 000000000000009d [ 43.415019] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f265129a5cd [ 43.416335] RDX: 0000564336dcbe00 RSI: 0000000000000002 RDI: 0000000000000016 [ 43.417633] RBP: 00007ffedd6a2c10 R08: 0000000000000000 R09: 00007ffedd6a22b0 [ 43.418927] R10: 0000000000000000 R11: 0000000000000246 R12: 000056435a036ad0 [ 43.420240] R13: 00007ffedd6a3040 R14: 000056435a037bc0 R15: 000056435a048780 [ 43.421551] [ 43.421977] irq event stamp: 1721 [ 43.422642] hardirqs last enabled at (1731): [] __up_console_sem+0x78/0x80 [ 43.424206] hardirqs last disabled at (1740): [] __up_console_sem+0x5d/0x80 [ 43.425834] softirqs last enabled at (1700): [] handle_softirqs+0x50c/0x770 [ 43.427394] softirqs last disabled at (1759): [] __irq_exit_rcu+0xc4/0x100 [ 43.428910] ---[ end trace 0000000000000000 ]--- Warning: Permanently added '[localhost]:29460' (ECDSA) to the list of known hosts. 2025/11/18 07:38:22 fuzzer started 2025/11/18 07:38:22 dialing manager at localhost:37895 2025/11/18 07:38:22 checking machine... 2025/11/18 07:38:22 checking revisions... [ 44.334885] kmemleak: Automatic memory scanning thread ended 2025/11/18 07:38:22 testing simple program... [ 44.451966] cgroup: Unknown subsys name 'net' [ 44.525256] cgroup: Unknown subsys name 'cpuset' [ 44.546708] cgroup: Unknown subsys name 'rlimit' executing program executing program VM DIAGNOSIS: 07:38:21 Registers: info registers vcpu 0 RAX=ffff88800c5e1400 RBX=ffff88800d0fc100 RCX=ffffffff8152d723 RDX=ffff88800c5df880 RSI=0000000000000000 RDI=ffff88800c5e1700 RBP=ffff88800c5e1700 RSP=ffff888017b2fcc8 R8 =0000000000000001 R9 =ffffed1002f65f8a R10=0000000000000003 R11=0000000000000001 R12=ffff88800ce149a8 R13=0000000000000246 R14=ffff888008c49dc0 R15=0000000000000000 RIP=ffffffff81b61984 RFL=00000082 [--S----] 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 =0000 0000000000000000 00000000 00000000 DS =0000 0000000000000000 00000000 00000000 FS =0000 00007fb1bbfff700 00000000 00000000 GS =0000 ffff8880e538f000 00000000 00000000 LDT=0000 fffffe2f00000000 00000000 00000000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007fed680f7020 CR3=000000001bb74000 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=2031323a38333a373020383120766f4e XMM01=6964206465766965636552203a5d3034 XMM02=6f63736964203a31313a343235333520 XMM03=7266207463656e6e6f63736964206465 XMM04=69662068637573206f4e203a656c6163 XMM05=3a656c696620766e65206e65706f206f XMM06=65733a6468737328766e655f6d617020 XMM07=6b7a79732031323a38333a3730203831 XMM08=30343d7974696c696261706163202279 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=ffffffff87ce9878 RBX=ffff888016eb3780 RCX=0000000000000000 RDX=0000000000000083 RSI=0000000000000000 RDI=ffff88801bcbc538 RBP=ffff888016eb41d8 RSP=ffff888016f97c40 R8 =0000000000000000 R9 =0000000000000083 R10=0000000000000001 R11=0000000000000000 R12=ffff888016eb4200 R13=0000000000000003 R14=0000000000000001 R15=0000000000040000 RIP=ffffffff81527113 RFL=00000003 [------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 00007f15e2a0b900 00000000 00000000 GS =0000 ffff8880e548f000 00000000 00000000 LDT=0000 fffffe4f00000000 00000000 00000000 TR =0040 fffffe000004a000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000048000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007f15e29d5008 CR3=000000002084f000 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=652022746f6f72223d74636361207469 XMM02=3d6c616e696d72657420322e322e302e XMM03=3d656d616e74736f682022646873732f XMM04=40404040404040404040404040404040 XMM05=5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a XMM06=20202020202020202020202020202020 XMM07=00000000000000000000000000000000 XMM08=652075253d64692073253d706f000000 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000