Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 39.108624] ------------[ cut here ]------------ [ 39.109495] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code! [ 39.111819] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#1: sshd/233 [ 39.113339] Modules linked in: [ 39.113977] CPU: 1 UID: 104 PID: 233 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251117 #1 PREEMPT(voluntary) [ 39.116582] Tainted: [W]=WARN [ 39.117200] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 39.118965] RIP: 0010:vmalloc_fix_flags+0x91/0xd0 [ 39.120063] 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 [ 39.123483] RSP: 0018:ffff8880178dfbc0 EFLAGS: 00010286 [ 39.124436] RAX: 0000000000000000 RBX: ffffed1002f1bf78 RCX: ffffffff813a4050 [ 39.125688] RDX: ffff88800b619bc0 RSI: ffffffff813a405e RDI: 0000000000000001 [ 39.126955] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed1002f1bf2f [ 39.128222] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0 [ 39.129466] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff8880178dfdf8 [ 39.130731] FS: 00007f01f9f2d900(0000) GS:ffff8880e548f000(0000) knlGS:0000000000000000 [ 39.132164] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.133215] CR2: 00007ffcd6c54ef8 CR3: 000000000c04e000 CR4: 0000000000350ef0 [ 39.134625] Call Trace: [ 39.135162] [ 39.135728] ? __pfx_vmalloc_fix_flags+0x10/0x10 [ 39.136697] ? __create_object+0x59/0x80 [ 39.137439] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 39.138409] __vmalloc_noprof+0x59/0x60 [ 39.139175] bpf_prog_alloc_no_stats+0x55/0x470 [ 39.140061] ? __pfx_seccomp_check_filter+0x10/0x10 [ 39.140960] bpf_prog_alloc+0x39/0x200 [ 39.141694] ? __pfx_seccomp_check_filter+0x10/0x10 [ 39.142598] bpf_prog_create_from_user+0xb2/0x2f0 [ 39.143455] do_seccomp+0x349/0x25e0 [ 39.144161] ? find_held_lock+0x2b/0x80 [ 39.144903] ? do_prlimit+0x310/0x610 [ 39.145630] ? __pfx_do_seccomp+0x10/0x10 [ 39.146353] ? do_raw_spin_unlock+0x53/0x220 [ 39.147173] ? _raw_spin_unlock+0x1e/0x40 [ 39.147965] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 39.148917] ? static_key_count+0x60/0x80 [ 39.149709] prctl_set_seccomp+0x4e/0x70 [ 39.150429] __do_sys_prctl+0xe6c/0x1d70 [ 39.151213] ? __pfx___do_sys_prctl+0x10/0x10 [ 39.152177] ? trace_irq_disable.constprop.0+0xc2/0x100 [ 39.153266] ? exit_to_user_mode_loop+0xcf/0x4d0 [ 39.154165] do_syscall_64+0xbf/0x430 [ 39.154892] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 39.155863] RIP: 0033:0x7f01fa41f5cd [ 39.156571] 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 [ 39.159686] RSP: 002b:00007ffcd6c53870 EFLAGS: 00000246 ORIG_RAX: 000000000000009d [ 39.161033] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f01fa41f5cd [ 39.162279] RDX: 00005642db623e00 RSI: 0000000000000002 RDI: 0000000000000016 [ 39.163554] RBP: 00007ffcd6c538d0 R08: 0000000000000000 R09: 00007ffcd6c52f70 [ 39.164802] R10: 0000000000000000 R11: 0000000000000246 R12: 000056430e4a42b0 [ 39.166051] R13: 00007ffcd6c53d00 R14: 000056430e4a6d20 R15: 000056430e4b88d0 [ 39.167329] [ 39.167788] irq event stamp: 2809 [ 39.168384] hardirqs last enabled at (2817): [] __up_console_sem+0x78/0x80 [ 39.169862] hardirqs last disabled at (2826): [] __up_console_sem+0x5d/0x80 [ 39.171367] softirqs last enabled at (2680): [] handle_softirqs+0x50c/0x770 [ 39.172875] softirqs last disabled at (2675): [] __irq_exit_rcu+0xc4/0x100 [ 39.174358] ---[ end trace 0000000000000000 ]--- [ 42.582830] ------------[ cut here ]------------ [ 42.583772] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code! [ 42.585798] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#1: sshd/242 [ 42.587467] Modules linked in: [ 42.588158] CPU: 1 UID: 104 PID: 242 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251117 #1 PREEMPT(voluntary) [ 42.590136] Tainted: [W]=WARN [ 42.590733] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 42.592195] RIP: 0010:vmalloc_fix_flags+0x91/0xd0 [ 42.593105] 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 [ 42.596235] RSP: 0018:ffff888017f87bc0 EFLAGS: 00010286 [ 42.597206] RAX: 0000000000000000 RBX: ffffed1002ff0f78 RCX: ffffffff813a4050 [ 42.598474] RDX: ffff8880165d5340 RSI: ffffffff813a405e RDI: 0000000000000001 [ 42.599746] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed1002ff0f2f [ 42.601009] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0 [ 42.602279] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff888017f87df8 [ 42.603566] FS: 00007fea63058900(0000) GS:ffff8880e548f000(0000) knlGS:0000000000000000 [ 42.604984] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.606029] CR2: 00007fea635be4a6 CR3: 000000000cf15000 CR4: 0000000000350ef0 [ 42.607308] Call Trace: [ 42.607817] [ 42.608223] ? __pfx_vmalloc_fix_flags+0x10/0x10 [ 42.609112] ? __create_object+0x59/0x80 [ 42.609892] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 42.610857] __vmalloc_noprof+0x59/0x60 [ 42.611621] bpf_prog_alloc_no_stats+0x55/0x470 [ 42.612436] ? __pfx_seccomp_check_filter+0x10/0x10 [ 42.613357] bpf_prog_alloc+0x39/0x200 [ 42.614093] ? __pfx_seccomp_check_filter+0x10/0x10 [ 42.615018] bpf_prog_create_from_user+0xb2/0x2f0 [ 42.615922] do_seccomp+0x349/0x25e0 [ 42.616640] ? find_held_lock+0x2b/0x80 [ 42.617348] ? do_prlimit+0x310/0x610 [ 42.618083] ? __pfx_do_seccomp+0x10/0x10 [ 42.618861] ? do_raw_spin_unlock+0x53/0x220 [ 42.619717] ? _raw_spin_unlock+0x1e/0x40 [ 42.620463] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 42.621448] ? static_key_count+0x60/0x80 [ 42.622268] prctl_set_seccomp+0x4e/0x70 [ 42.623056] __do_sys_prctl+0xe6c/0x1d70 [ 42.623868] ? __pfx___do_sys_prctl+0x10/0x10 [ 42.624737] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0 [ 42.625719] ? irqentry_exit+0xf3/0x650 [ 42.626448] do_syscall_64+0xbf/0x430 [ 42.627196] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 42.628178] RIP: 0033:0x7fea6354a5cd [ 42.628898] 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 [ 42.632142] RSP: 002b:00007fff483ed100 EFLAGS: 00000246 ORIG_RAX: 000000000000009d [ 42.633532] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fea6354a5cd [ 42.634839] RDX: 000055bc99687e00 RSI: 0000000000000002 RDI: 0000000000000016 [ 42.636165] RBP: 00007fff483ed160 R08: 0000000000000000 R09: 00007fff483ec800 [ 42.637468] R10: 0000000000000000 R11: 0000000000000246 R12: 000055bc9d49e2b0 [ 42.638755] R13: 00007fff483ed590 R14: 000055bc9d4a0d20 R15: 000055bc9d4b28d0 [ 42.640097] [ 42.640589] irq event stamp: 1801 [ 42.641215] hardirqs last enabled at (1809): [] __up_console_sem+0x78/0x80 [ 42.642749] hardirqs last disabled at (1818): [] __up_console_sem+0x5d/0x80 [ 42.644176] softirqs last enabled at (1758): [] handle_softirqs+0x50c/0x770 [ 42.645481] softirqs last disabled at (1753): [] __irq_exit_rcu+0xc4/0x100 [ 42.646783] ---[ end trace 0000000000000000 ]--- [ 43.497053] ------------[ cut here ]------------ [ 43.497830] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code! [ 43.499630] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#0: sshd/250 [ 43.500868] Modules linked in: [ 43.501379] CPU: 0 UID: 104 PID: 250 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251117 #1 PREEMPT(voluntary) [ 43.503052] Tainted: [W]=WARN [ 43.503572] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 43.504841] RIP: 0010:vmalloc_fix_flags+0x91/0xd0 [ 43.505625] 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 [ 43.508333] RSP: 0018:ffff88801621fbc0 EFLAGS: 00010286 [ 43.509174] RAX: 0000000000000000 RBX: ffffed1002c43f78 RCX: ffffffff813a4050 [ 43.510265] RDX: ffff8880160f5340 RSI: ffffffff813a405e RDI: 0000000000000001 [ 43.511374] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed1002c43f2f [ 43.512467] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0 [ 43.513557] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff88801621fdf8 [ 43.514639] FS: 00007ff45cf80900(0000) GS:ffff8880e538f000(0000) knlGS:0000000000000000 [ 43.515868] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.516764] CR2: 00007fff6a0e4ef8 CR3: 000000000db58000 CR4: 0000000000350ef0 [ 43.517858] Call Trace: [ 43.518248] [ 43.519098] ? __pfx_vmalloc_fix_flags+0x10/0x10 [ 43.519880] ? __create_object+0x59/0x80 [ 43.520555] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 43.521352] __vmalloc_noprof+0x59/0x60 [ 43.522005] bpf_prog_alloc_no_stats+0x55/0x470 [ 43.522751] ? __pfx_seccomp_check_filter+0x10/0x10 [ 43.523550] bpf_prog_alloc+0x39/0x200 [ 43.524138] ? __pfx_seccomp_check_filter+0x10/0x10 [ 43.524936] bpf_prog_create_from_user+0xb2/0x2f0 [ 43.525709] do_seccomp+0x349/0x25e0 [ 43.526294] ? find_held_lock+0x2b/0x80 [ 43.526943] ? do_prlimit+0x310/0x610 [ 43.527589] ? __pfx_do_seccomp+0x10/0x10 [ 43.528233] ? do_raw_spin_unlock+0x53/0x220 [ 43.528934] ? _raw_spin_unlock+0x1e/0x40 [ 43.529594] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 43.530370] ? static_key_count+0x60/0x80 [ 43.531049] prctl_set_seccomp+0x4e/0x70 [ 43.531709] __do_sys_prctl+0xe6c/0x1d70 [ 43.532331] ? __pfx___do_sys_prctl+0x10/0x10 [ 43.533058] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0 [ 43.533886] ? irqentry_exit+0xf3/0x650 [ 43.534499] do_syscall_64+0xbf/0x430 [ 43.535134] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 43.535948] RIP: 0033:0x7ff45d4725cd [ 43.536555] 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 [ 43.539238] RSP: 002b:00007fff6a0e2950 EFLAGS: 00000246 ORIG_RAX: 000000000000009d [ 43.540408] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff45d4725cd [ 43.541503] RDX: 0000557711663e00 RSI: 0000000000000002 RDI: 0000000000000016 [ 43.542613] RBP: 00007fff6a0e29b0 R08: 0000000000000000 R09: 00007fff6a0e2050 [ 43.543714] R10: 0000000000000000 R11: 0000000000000246 R12: 000055772afdaad0 [ 43.544801] R13: 00007fff6a0e2de0 R14: 000055772afdbbc0 R15: 000055772afec780 [ 43.545901] [ 43.546258] irq event stamp: 1747 [ 43.546824] hardirqs last enabled at (1757): [] __up_console_sem+0x78/0x80 [ 43.548132] hardirqs last disabled at (1766): [] __up_console_sem+0x5d/0x80 [ 43.549441] softirqs last enabled at (1694): [] handle_softirqs+0x50c/0x770 [ 43.550765] softirqs last disabled at (1689): [] __irq_exit_rcu+0xc4/0x100 [ 43.552060] ---[ end trace 0000000000000000 ]--- Warning: Permanently added '[localhost]:51956' (ECDSA) to the list of known hosts. 2025/11/17 16:28:00 fuzzer started 2025/11/17 16:28:00 dialing manager at localhost:37895 2025/11/17 16:28:00 checking machine... 2025/11/17 16:28:00 checking revisions... [ 44.373211] kmemleak: Automatic memory scanning thread ended 2025/11/17 16:28:00 testing simple program... [ 44.468475] cgroup: Unknown subsys name 'net' [ 44.545594] cgroup: Unknown subsys name 'cpuset' [ 44.564956] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program VM DIAGNOSIS: 16:27:59 Registers: info registers vcpu 0 RAX=ffff88800edf3678 RBX=0000000000000200 RCX=ffffffff8152d723 RDX=ffff88800ede5240 RSI=0000000000000000 RDI=ffff88800ede6dc0 RBP=ffff88800ede6dc0 RSP=ffff888014367888 R8 =0000000000000001 R9 =ffffed100286cf02 R10=0000000000000003 R11=0000000000000001 R12=ffff88800bd3e758 R13=0000000000000246 R14=ffff88800ede6dc0 R15=ffff88800944cc80 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 =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 fffffe2800000000 00000000 00000000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007efe9843d038 CR3=000000000d2f3000 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=0733b0977f4158a1f242acc7462bfda3 XMM02=eff9b2d0a8fce9cb0000000000303080 XMM03=2c67c8bc2e329bc300000000003031c8 XMM04=73e0d329c802692800000000000ae988 XMM05=b8da672b888f22030000000000321d48 XMM06=090f1556b20111b30000000000320c00 XMM07=fb795ef6d65770560000000000310788 XMM08=2c67c8bc2e329bc300000000003031c8 XMM09=00000000000000000000000000000000 XMM10=20200000000020202020202020200000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000000 RBX=1ffff11002ca0f2b RCX=ffffffff81c11482 RDX=ffff8880165d1bc0 RSI=ffffffff81c055d6 RDI=ffff888016507978 RBP=ffff8880165079d8 RSP=ffff888016507948 R8 =0000000000000001 R9 =fffff940000c8506 R10=0000000000000000 R11=0000000000000000 R12=ffff8880093af4f8 R13=dffffc0000000000 R14=ffff888009838720 R15=0000000000000000 RIP=ffffffff816395d5 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 00007fea63058900 00000000 00000000 GS =0000 ffff8880e548f000 00000000 00000000 LDT=0000 fffffe6000000000 00000000 00000000 TR =0040 fffffe000004a000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000048000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007fff483e7000 CR3=000000000d4be000 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=6c697473206e61632073726573552023 XMM01=20656c706f657020726568746f20776f XMM02=0000000000000000000000000000ffff XMM03=796e6120776f6c6c6120746f6e206f74 XMM04=40404040404040404040404040404040 XMM05=5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a XMM06=20202020202020202020202020202020 XMM07=ff0000ffffffff00ffffffffffffffff XMM08=6120776f6c6c6120746f6e206f740000 XMM09=00000000000000000000000000000000 XMM10=00002020202020200020202020202020 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000