Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 38.968440] ------------[ cut here ]------------ [ 38.969377] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code! [ 38.971445] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#0: sshd/234 [ 38.972966] Modules linked in: [ 38.973597] CPU: 0 UID: 104 PID: 234 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251118 #1 PREEMPT(voluntary) [ 38.975635] Tainted: [W]=WARN [ 38.976208] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 38.977691] RIP: 0010:vmalloc_fix_flags+0x91/0xd0 [ 38.978613] Code: e0 ad 11 00 81 e6 1f 52 ee ff 89 4c 24 40 89 74 24 30 90 48 c7 c7 40 38 f1 84 4c 8d 44 24 40 48 8d 54 24 30 e8 30 7b 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 [ 38.981817] RSP: 0018:ffff888015f3fbc0 EFLAGS: 00010286 [ 38.982792] RAX: 0000000000000000 RBX: ffffed1002be7f78 RCX: ffffffff813a4050 [ 38.984122] RDX: ffff8880161f0000 RSI: ffffffff813a405e RDI: 0000000000000001 [ 38.985416] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed1002be7f2f [ 38.986695] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0 [ 38.988009] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff888015f3fdf8 [ 38.989319] FS: 00007f1c8cbff900(0000) GS:ffff8880e538f000(0000) knlGS:0000000000000000 [ 38.990751] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 38.991818] CR2: 00007ffd3a487ef7 CR3: 000000000bd87000 CR4: 0000000000350ef0 [ 38.993104] Call Trace: [ 38.993606] [ 38.994026] ? __pfx_vmalloc_fix_flags+0x10/0x10 [ 38.994927] ? __create_object+0x59/0x80 [ 38.995726] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 38.996689] __vmalloc_noprof+0x59/0x60 [ 38.997447] bpf_prog_alloc_no_stats+0x55/0x470 [ 38.998272] ? __pfx_seccomp_check_filter+0x10/0x10 [ 38.999201] bpf_prog_alloc+0x39/0x200 [ 38.999942] ? __pfx_seccomp_check_filter+0x10/0x10 [ 39.000886] bpf_prog_create_from_user+0xb2/0x2f0 [ 39.001798] do_seccomp+0x349/0x25e0 [ 39.002528] ? find_held_lock+0x2b/0x80 [ 39.003243] ? do_prlimit+0x310/0x610 [ 39.004003] ? __pfx_do_seccomp+0x10/0x10 [ 39.004779] ? do_raw_spin_unlock+0x53/0x220 [ 39.005608] ? _raw_spin_unlock+0x1e/0x40 [ 39.006397] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 39.007369] ? static_key_count+0x60/0x80 [ 39.008161] prctl_set_seccomp+0x4e/0x70 [ 39.008958] __do_sys_prctl+0xe6c/0x1d70 [ 39.009759] ? __pfx___do_sys_prctl+0x10/0x10 [ 39.010614] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0 [ 39.011598] ? irqentry_exit+0xf3/0x650 [ 39.012376] do_syscall_64+0xbf/0x430 [ 39.013097] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 39.014056] RIP: 0033:0x7f1c8d0f15cd [ 39.014760] 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 [ 39.017993] RSP: 002b:00007ffd3a4861a0 EFLAGS: 00000246 ORIG_RAX: 000000000000009d [ 39.019385] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1c8d0f15cd [ 39.020690] RDX: 0000559751ffde00 RSI: 0000000000000002 RDI: 0000000000000016 [ 39.021985] RBP: 00007ffd3a486200 R08: 0000000000000000 R09: 00007ffd3a4858a0 [ 39.023266] R10: 0000000000000000 R11: 0000000000000246 R12: 00005597676b3ad0 [ 39.024596] R13: 00007ffd3a486630 R14: 00005597676b4bc0 R15: 00005597676c5780 [ 39.025916] [ 39.026375] irq event stamp: 1779 [ 39.026989] hardirqs last enabled at (1787): [] __up_console_sem+0x78/0x80 [ 39.028481] hardirqs last disabled at (1796): [] __up_console_sem+0x5d/0x80 [ 39.029742] softirqs last enabled at (1698): [] handle_softirqs+0x50c/0x770 [ 39.031028] softirqs last disabled at (1693): [] __irq_exit_rcu+0xc4/0x100 [ 39.032307] ---[ end trace 0000000000000000 ]--- [ 42.626577] ------------[ cut here ]------------ [ 42.627397] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code! [ 42.629188] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#1: sshd/243 [ 42.630493] Modules linked in: [ 42.631032] CPU: 1 UID: 104 PID: 243 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251118 #1 PREEMPT(voluntary) [ 42.633050] Tainted: [W]=WARN [ 42.634028] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 42.635358] RIP: 0010:vmalloc_fix_flags+0x91/0xd0 [ 42.636157] Code: e0 ad 11 00 81 e6 1f 52 ee ff 89 4c 24 40 89 74 24 30 90 48 c7 c7 40 38 f1 84 4c 8d 44 24 40 48 8d 54 24 30 e8 30 7b 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 [ 42.639034] RSP: 0018:ffff888016dd7bc0 EFLAGS: 00010286 [ 42.639925] RAX: 0000000000000000 RBX: ffffed1002dbaf78 RCX: ffffffff813a4050 [ 42.641095] RDX: ffff88801be03780 RSI: ffffffff813a405e RDI: 0000000000000001 [ 42.642275] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed1002dbaf2f [ 42.643466] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0 [ 42.644630] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff888016dd7df8 [ 42.645790] FS: 00007ff6926ad900(0000) GS:ffff8880e548f000(0000) knlGS:0000000000000000 [ 42.647102] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.648072] CR2: 00007ffd33c93ef7 CR3: 000000000d6dd000 CR4: 0000000000350ef0 [ 42.649236] Call Trace: [ 42.649685] [ 42.650072] ? __pfx_vmalloc_fix_flags+0x10/0x10 [ 42.650880] ? __create_object+0x59/0x80 [ 42.651600] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 42.652485] __vmalloc_noprof+0x59/0x60 [ 42.653138] bpf_prog_alloc_no_stats+0x55/0x470 [ 42.653916] ? __pfx_seccomp_check_filter+0x10/0x10 [ 42.654756] bpf_prog_alloc+0x39/0x200 [ 42.655427] ? __pfx_seccomp_check_filter+0x10/0x10 [ 42.656247] bpf_prog_create_from_user+0xb2/0x2f0 [ 42.657076] do_seccomp+0x349/0x25e0 [ 42.657721] ? find_held_lock+0x2b/0x80 [ 42.658418] ? do_prlimit+0x310/0x610 [ 42.659050] ? __pfx_do_seccomp+0x10/0x10 [ 42.659762] ? do_raw_spin_unlock+0x53/0x220 [ 42.660511] ? _raw_spin_unlock+0x1e/0x40 [ 42.661178] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 42.662062] ? static_key_count+0x60/0x80 [ 42.662790] prctl_set_seccomp+0x4e/0x70 [ 42.663501] __do_sys_prctl+0xe6c/0x1d70 [ 42.664189] ? __pfx___do_sys_prctl+0x10/0x10 [ 42.664962] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0 [ 42.665851] ? irqentry_exit+0xf3/0x650 [ 42.666542] do_syscall_64+0xbf/0x430 [ 42.667173] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 42.668045] RIP: 0033:0x7ff692b9f5cd [ 42.668677] 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 [ 42.671567] RSP: 002b:00007ffd33c91fe0 EFLAGS: 00000246 ORIG_RAX: 000000000000009d [ 42.672830] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff692b9f5cd [ 42.673980] RDX: 000055796d12ce00 RSI: 0000000000000002 RDI: 0000000000000016 [ 42.675135] RBP: 00007ffd33c92040 R08: 0000000000000000 R09: 00007ffd33c916e0 [ 42.676300] R10: 0000000000000000 R11: 0000000000000246 R12: 0000557999e2dad0 [ 42.677468] R13: 00007ffd33c92470 R14: 0000557999e2ebc0 R15: 0000557999e3f780 [ 42.678662] [ 42.679051] irq event stamp: 1913 [ 42.679660] hardirqs last enabled at (1923): [] __up_console_sem+0x78/0x80 [ 42.681057] hardirqs last disabled at (1932): [] __up_console_sem+0x5d/0x80 [ 42.682466] softirqs last enabled at (1946): [] handle_softirqs+0x50c/0x770 [ 42.683910] softirqs last disabled at (1941): [] __irq_exit_rcu+0xc4/0x100 [ 42.685325] ---[ end trace 0000000000000000 ]--- [ 43.492611] ------------[ cut here ]------------ [ 43.493377] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code! [ 43.495053] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#0: sshd/252 [ 43.496310] Modules linked in: [ 43.496832] CPU: 0 UID: 104 PID: 252 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251118 #1 PREEMPT(voluntary) [ 43.498489] Tainted: [W]=WARN [ 43.498949] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 43.500182] RIP: 0010:vmalloc_fix_flags+0x91/0xd0 [ 43.500952] Code: e0 ad 11 00 81 e6 1f 52 ee ff 89 4c 24 40 89 74 24 30 90 48 c7 c7 40 38 f1 84 4c 8d 44 24 40 48 8d 54 24 30 e8 30 7b 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 [ 43.503655] RSP: 0018:ffff88801a8ffbc0 EFLAGS: 00010286 [ 43.504492] RAX: 0000000000000000 RBX: ffffed100351ff78 RCX: ffffffff813a4050 [ 43.505580] RDX: ffff8880154a1bc0 RSI: ffffffff813a405e RDI: 0000000000000001 [ 43.506689] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed100351ff2f [ 43.507806] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0 [ 43.508889] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff88801a8ffdf8 [ 43.509987] FS: 00007fe32192c900(0000) GS:ffff8880e538f000(0000) knlGS:0000000000000000 [ 43.511201] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.512148] CR2: 00007ffe18e58ef7 CR3: 000000000fa15000 CR4: 0000000000350ef0 [ 43.513243] Call Trace: [ 43.513674] [ 43.514014] ? __pfx_vmalloc_fix_flags+0x10/0x10 [ 43.514786] ? __create_object+0x59/0x80 [ 43.515456] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 43.516265] __vmalloc_noprof+0x59/0x60 [ 43.516907] bpf_prog_alloc_no_stats+0x55/0x470 [ 43.517634] ? __pfx_seccomp_check_filter+0x10/0x10 [ 43.518420] bpf_prog_alloc+0x39/0x200 [ 43.519011] ? __pfx_seccomp_check_filter+0x10/0x10 [ 43.519815] bpf_prog_create_from_user+0xb2/0x2f0 [ 43.520580] do_seccomp+0x349/0x25e0 [ 43.521137] ? find_held_lock+0x2b/0x80 [ 43.521773] ? do_prlimit+0x310/0x610 [ 43.522390] ? __pfx_do_seccomp+0x10/0x10 [ 43.523018] ? do_raw_spin_unlock+0x53/0x220 [ 43.523755] ? _raw_spin_unlock+0x1e/0x40 [ 43.524398] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 43.525185] ? static_key_count+0x60/0x80 [ 43.525867] prctl_set_seccomp+0x4e/0x70 [ 43.526531] __do_sys_prctl+0xe6c/0x1d70 [ 43.527157] ? __pfx___do_sys_prctl+0x10/0x10 [ 43.527889] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0 [ 43.528712] ? irqentry_exit+0xf3/0x650 [ 43.529335] do_syscall_64+0xbf/0x430 [ 43.529917] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 43.530711] RIP: 0033:0x7fe321e1e5cd [ 43.531254] 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 [ 43.533952] RSP: 002b:00007ffe18e56b70 EFLAGS: 00000246 ORIG_RAX: 000000000000009d [ 43.535114] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe321e1e5cd [ 43.536407] RDX: 0000555fd6df4e00 RSI: 0000000000000002 RDI: 0000000000000016 [ 43.537753] RBP: 00007ffe18e56bd0 R08: 0000000000000000 R09: 00007ffe18e56270 [ 43.539107] R10: 0000000000000000 R11: 0000000000000246 R12: 0000555feabeead0 [ 43.540343] R13: 00007ffe18e57000 R14: 0000555feabefbc0 R15: 0000555feac00780 [ 43.541464] [ 43.541877] irq event stamp: 1685 [ 43.542422] hardirqs last enabled at (1695): [] __up_console_sem+0x78/0x80 [ 43.543728] hardirqs last disabled at (1704): [] __up_console_sem+0x5d/0x80 [ 43.545017] softirqs last enabled at (1248): [] handle_softirqs+0x50c/0x770 [ 43.546320] softirqs last disabled at (1243): [] __irq_exit_rcu+0xc4/0x100 [ 43.547629] ---[ end trace 0000000000000000 ]--- Warning: Permanently added '[localhost]:25401' (ECDSA) to the list of known hosts. 2025/11/19 00:42:09 fuzzer started 2025/11/19 00:42:09 dialing manager at localhost:34383 2025/11/19 00:42:09 checking machine... 2025/11/19 00:42:09 checking revisions... [ 44.446597] kmemleak: Automatic memory scanning thread ended 2025/11/19 00:42:10 testing simple program... [ 44.530410] cgroup: Unknown subsys name 'net' [ 44.608925] cgroup: Unknown subsys name 'cpuset' [ 44.623632] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program VM DIAGNOSIS: 00:42:09 Registers: info registers vcpu 0 RAX=ffff88801c961028 RBX=0000000000000000 RCX=ffffffff8152d723 RDX=ffff88801c91d370 RSI=0000000000000000 RDI=ffff88801c93b3c0 RBP=ffff88801c93b3c0 RSP=ffff888009627b88 R8 =0000000000000001 R9 =ffffed10012c4f62 R10=0000000000000003 R11=0000000000000001 R12=ffff88800db22068 R13=0000000000000246 R14=ffff88801c93b3c0 R15=ffff8880096c7dc0 RIP=ffffffff81b61af4 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 fffffe7400000000 00000000 00000000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007ff692c64618 CR3=000000000cd5e000 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=0000000000023b5d RBX=0000000000000001 RCX=ffffffff84c72d57 RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff814d2c90 RBP=dffffc0000000000 RSP=ffff8880096efe58 R8 =0000000000000001 R9 =ffffed100d9e639a R10=ffff88806cf31cd3 R11=0000000000000001 R12=ffffffff8664f850 R13=1ffff110012ddfd2 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 ffff8880e548f000 00000000 00000000 LDT=0000 fffffe3a00000000 00000000 00000000 TR =0040 fffffe000004a000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000048000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007f4ff926d4a0 CR3=000000000e0cd000 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=2038303a32343a303020393120766f4e XMM01=73732878696e755f6d6170203a5d3234 XMM02=65736f6c63206e6f6973736573203a29 XMM03=755f6d6170203a5d3234325b64687373 XMM04=69662068637573206f4e203a656c6163 XMM05=3a656c696620766e65206e65706f206f XMM06=65733a6468737328766e655f6d617020 XMM07=6b7a79732038303a32343a3030203931 XMM08=30343d7974696c696261706163202279 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000