Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 38.992467] ------------[ cut here ]------------ [ 38.993382] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code! [ 38.995356] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#0: sshd/235 [ 38.997004] Modules linked in: [ 38.997704] CPU: 0 UID: 104 PID: 235 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251117 #1 PREEMPT(voluntary) [ 38.999678] Tainted: [W]=WARN [ 39.000221] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 39.001676] RIP: 0010:vmalloc_fix_flags+0x91/0xd0 [ 39.002581] 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 [ 39.005690] RSP: 0018:ffff88801ab17bc0 EFLAGS: 00010286 [ 39.006669] RAX: 0000000000000000 RBX: ffffed1003562f78 RCX: ffffffff813a4050 [ 39.007936] RDX: ffff88800f191bc0 RSI: ffffffff813a405e RDI: 0000000000000001 [ 39.009188] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed1003562f2f [ 39.010459] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0 [ 39.011720] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff88801ab17df8 [ 39.012987] FS: 00007fa7d448f900(0000) GS:ffff8880e538f000(0000) knlGS:0000000000000000 [ 39.014413] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.015456] CR2: 00007fff0a4ebef8 CR3: 000000000f845000 CR4: 0000000000350ef0 [ 39.016715] Call Trace: [ 39.017169] [ 39.017627] ? __pfx_vmalloc_fix_flags+0x10/0x10 [ 39.018472] ? __create_object+0x59/0x80 [ 39.019259] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 39.020215] __vmalloc_noprof+0x59/0x60 [ 39.020968] bpf_prog_alloc_no_stats+0x55/0x470 [ 39.021832] ? __pfx_seccomp_check_filter+0x10/0x10 [ 39.022775] bpf_prog_alloc+0x39/0x200 [ 39.023456] ? __pfx_seccomp_check_filter+0x10/0x10 [ 39.024367] bpf_prog_create_from_user+0xb2/0x2f0 [ 39.025266] do_seccomp+0x349/0x25e0 [ 39.025977] ? find_held_lock+0x2b/0x80 [ 39.026746] ? do_prlimit+0x310/0x610 [ 39.027440] ? __pfx_do_seccomp+0x10/0x10 [ 39.028215] ? do_raw_spin_unlock+0x53/0x220 [ 39.029034] ? _raw_spin_unlock+0x1e/0x40 [ 39.029814] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 39.030786] ? static_key_count+0x60/0x80 [ 39.031578] prctl_set_seccomp+0x4e/0x70 [ 39.032298] __do_sys_prctl+0xe6c/0x1d70 [ 39.033063] ? __pfx___do_sys_prctl+0x10/0x10 [ 39.033906] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0 [ 39.034886] ? irqentry_exit+0xf3/0x650 [ 39.035632] do_syscall_64+0xbf/0x430 [ 39.036313] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 39.037255] RIP: 0033:0x7fa7d49815cd [ 39.037942] 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 [ 39.041027] RSP: 002b:00007fff0a4eaa50 EFLAGS: 00000246 ORIG_RAX: 000000000000009d [ 39.042368] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa7d49815cd [ 39.043624] RDX: 000055fad8435e00 RSI: 0000000000000002 RDI: 0000000000000016 [ 39.044878] RBP: 00007fff0a4eaab0 R08: 0000000000000000 R09: 00007fff0a4ea150 [ 39.046138] R10: 0000000000000000 R11: 0000000000000246 R12: 000055fb1157fad0 [ 39.047398] R13: 00007fff0a4eaee0 R14: 000055fb11580bc0 R15: 000055fb11591780 [ 39.048672] [ 39.049088] irq event stamp: 1781 [ 39.049718] hardirqs last enabled at (1791): [] __up_console_sem+0x78/0x80 [ 39.051231] hardirqs last disabled at (1800): [] __up_console_sem+0x5d/0x80 [ 39.052730] softirqs last enabled at (1320): [] handle_softirqs+0x50c/0x770 [ 39.054253] softirqs last disabled at (1315): [] __irq_exit_rcu+0xc4/0x100 [ 39.055750] ---[ end trace 0000000000000000 ]--- [ 41.950790] ------------[ cut here ]------------ [ 41.951711] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code! [ 41.953730] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#0: sshd/243 [ 41.955197] Modules linked in: [ 41.955821] CPU: 0 UID: 104 PID: 243 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251117 #1 PREEMPT(voluntary) [ 41.957778] Tainted: [W]=WARN [ 41.958333] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 41.959793] RIP: 0010:vmalloc_fix_flags+0x91/0xd0 [ 41.960711] 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 [ 41.963909] RSP: 0018:ffff888019ee7bc0 EFLAGS: 00010286 [ 41.964885] RAX: 0000000000000000 RBX: ffffed10033dcf78 RCX: ffffffff813a4050 [ 41.966176] RDX: ffff888013c15340 RSI: ffffffff813a405e RDI: 0000000000000001 [ 41.967467] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed10033dcf2f [ 41.968752] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0 [ 41.970025] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff888019ee7df8 [ 41.970840] FS: 00007f5800753900(0000) GS:ffff8880e538f000(0000) knlGS:0000000000000000 [ 41.971485] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.972003] CR2: 00007f5800c45580 CR3: 000000000e794000 CR4: 0000000000350ef0 [ 41.972596] Call Trace: [ 41.972810] [ 41.972999] ? __pfx_vmalloc_fix_flags+0x10/0x10 [ 41.973492] ? __create_object+0x59/0x80 [ 41.973881] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 41.974375] __vmalloc_noprof+0x59/0x60 [ 41.974722] bpf_prog_alloc_no_stats+0x55/0x470 [ 41.975111] ? __pfx_seccomp_check_filter+0x10/0x10 [ 41.975556] bpf_prog_alloc+0x39/0x200 [ 41.975878] ? __pfx_seccomp_check_filter+0x10/0x10 [ 41.976288] bpf_prog_create_from_user+0xb2/0x2f0 [ 41.976710] do_seccomp+0x349/0x25e0 [ 41.977029] ? __pfx_css_rstat_updated+0x10/0x10 [ 41.977420] ? __pfx_do_seccomp+0x10/0x10 [ 41.977780] ? find_held_lock+0x2b/0x80 [ 41.978121] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 41.978564] ? static_key_count+0x60/0x80 [ 41.978908] prctl_set_seccomp+0x4e/0x70 [ 41.979240] __do_sys_prctl+0xe6c/0x1d70 [ 41.979598] ? __pfx___do_sys_prctl+0x10/0x10 [ 41.979969] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 41.980391] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0 [ 41.980831] ? irqentry_exit+0xf3/0x650 [ 41.981161] do_syscall_64+0xbf/0x430 [ 41.981478] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 41.981915] RIP: 0033:0x7f5800c455cd [ 41.982224] 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 [ 41.983683] RSP: 002b:00007ffe889a03c0 EFLAGS: 00000246 ORIG_RAX: 000000000000009d [ 41.984380] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5800c455cd [ 41.984974] RDX: 0000557a01ccbe00 RSI: 0000000000000002 RDI: 0000000000000016 [ 41.985557] RBP: 00007ffe889a0420 R08: 0000000000000000 R09: 00007ffe8899fac0 [ 41.986132] R10: 0000000000000000 R11: 0000000000000246 R12: 0000557a158a22b0 [ 41.986719] R13: 00007ffe889a0850 R14: 0000557a158a4d20 R15: 0000557a158b68d0 [ 41.987296] [ 41.987490] irq event stamp: 1715 [ 41.987789] hardirqs last enabled at (1725): [] __up_console_sem+0x78/0x80 [ 41.988469] hardirqs last disabled at (1732): [] __up_console_sem+0x5d/0x80 [ 41.989168] softirqs last enabled at (1476): [] handle_softirqs+0x50c/0x770 [ 41.989882] softirqs last disabled at (1469): [] __irq_exit_rcu+0xc4/0x100 [ 41.990592] ---[ end trace 0000000000000000 ]--- [ 42.605123] ------------[ cut here ]------------ [ 42.606050] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code! [ 42.608027] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#0: sshd/250 [ 42.609442] Modules linked in: [ 42.610067] CPU: 0 UID: 104 PID: 250 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251117 #1 PREEMPT(voluntary) [ 42.612076] Tainted: [W]=WARN [ 42.612656] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 42.614108] RIP: 0010:vmalloc_fix_flags+0x91/0xd0 [ 42.615013] 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 [ 42.618144] RSP: 0018:ffff888016cd7bc0 EFLAGS: 00010286 [ 42.619107] RAX: 0000000000000000 RBX: ffffed1002d9af78 RCX: ffffffff813a4050 [ 42.620370] RDX: ffff88801ab29bc0 RSI: ffffffff813a405e RDI: 0000000000000001 [ 42.621634] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed1002d9af2f [ 42.622926] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0 [ 42.624171] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff888016cd7df8 [ 42.625425] FS: 00007f87cdf97900(0000) GS:ffff8880e538f000(0000) knlGS:0000000000000000 [ 42.626844] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.627896] CR2: 00007f87ce4fd4a6 CR3: 000000000f855000 CR4: 0000000000350ef0 [ 42.629163] Call Trace: [ 42.629652] [ 42.630055] ? __pfx_vmalloc_fix_flags+0x10/0x10 [ 42.630952] ? __create_object+0x59/0x80 [ 42.631725] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 42.632681] __vmalloc_noprof+0x59/0x60 [ 42.633381] bpf_prog_alloc_no_stats+0x55/0x470 [ 42.634237] ? __pfx_seccomp_check_filter+0x10/0x10 [ 42.635146] bpf_prog_alloc+0x39/0x200 [ 42.635879] ? __pfx_seccomp_check_filter+0x10/0x10 [ 42.636798] bpf_prog_create_from_user+0xb2/0x2f0 [ 42.637685] do_seccomp+0x349/0x25e0 [ 42.638362] ? find_held_lock+0x2b/0x80 [ 42.639112] ? do_prlimit+0x310/0x610 [ 42.639847] ? __pfx_do_seccomp+0x10/0x10 [ 42.640622] ? do_raw_spin_unlock+0x53/0x220 [ 42.641395] ? _raw_spin_unlock+0x1e/0x40 [ 42.642190] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 42.643143] ? static_key_count+0x60/0x80 [ 42.643946] prctl_set_seccomp+0x4e/0x70 [ 42.644711] __do_sys_prctl+0xe6c/0x1d70 [ 42.645440] ? __pfx___do_sys_prctl+0x10/0x10 [ 42.646302] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0 [ 42.647252] ? irqentry_exit+0xf3/0x650 [ 42.648001] do_syscall_64+0xbf/0x430 [ 42.648737] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 42.649679] RIP: 0033:0x7f87ce4895cd [ 42.650341] 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 [ 42.653443] RSP: 002b:00007ffee48baf70 EFLAGS: 00000246 ORIG_RAX: 000000000000009d [ 42.654774] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f87ce4895cd [ 42.656043] RDX: 000055e7ea978e00 RSI: 0000000000000002 RDI: 0000000000000016 [ 42.657308] RBP: 00007ffee48bafd0 R08: 0000000000000000 R09: 00007ffee48ba670 [ 42.658575] R10: 0000000000000000 R11: 0000000000000246 R12: 000055e7eb52bbf0 [ 42.659837] R13: 00007ffee48bb400 R14: 000055e7eb535380 R15: 000055e7eb540460 [ 42.661116] [ 42.661580] irq event stamp: 1721 [ 42.662192] hardirqs last enabled at (1729): [] __up_console_sem+0x78/0x80 [ 42.663686] hardirqs last disabled at (1738): [] __up_console_sem+0x5d/0x80 [ 42.665182] softirqs last enabled at (1642): [] handle_softirqs+0x50c/0x770 [ 42.666698] softirqs last disabled at (1637): [] __irq_exit_rcu+0xc4/0x100 [ 42.668186] ---[ end trace 0000000000000000 ]--- Warning: Permanently added '[localhost]:57850' (ECDSA) to the list of known hosts. 2025/11/17 17:25:07 fuzzer started 2025/11/17 17:25:07 dialing manager at localhost:37895 2025/11/17 17:25:07 checking machine... 2025/11/17 17:25:07 checking revisions... [ 43.592416] kmemleak: Automatic memory scanning thread ended 2025/11/17 17:25:08 testing simple program... [ 43.671423] cgroup: Unknown subsys name 'net' [ 43.725906] cgroup: Unknown subsys name 'cpuset' [ 43.741205] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program VM DIAGNOSIS: 17:25:07 Registers: info registers vcpu 0 RAX=0000000000000005 RBX=ffff88801ab28000 RCX=0000000000000000 RDX=0000000000000005 RSI=0000000000000000 RDI=ffffffff85e1ffe0 RBP=ffff88801ab28a58 RSP=ffff8880163ff6c0 R8 =0000000000000000 R9 =0000000000000005 R10=0000000000000001 R11=0000000000000000 R12=ffff88801ab28a58 R13=0000000000000003 R14=0000000000000000 R15=0000000000000000 RIP=ffffffff81527128 RFL=00000007 [-----PC] 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 00007f5800753900 00000000 00000000 GS =0000 ffff8880e538f000 00000000 00000000 LDT=0000 fffffe4f00000000 00000000 00000000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007f5800722008 CR3=000000000e735000 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 info registers vcpu 1 RAX=0000000000000007 RBX=000000000000085d RCX=0000000000000001 RDX=0000000000000000 RSI=0000000000000000 RDI=ffff88806cf37448 RBP=ffff888009613800 RSP=ffff88806cf08cf0 R8 =0000000000000000 R9 =1ffff1100d9e6e89 R10=000000000000085d R11=0000000000000001 R12=00000009e2549400 R13=ffff8880096138dc R14=ffff888009613800 R15=ffff88806cf37578 RIP=ffffffff814dc541 RFL=00000002 [-------] 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 fffffe6d00000000 00000000 00000000 TR =0040 fffffe000004a000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000048000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007fff201ee6a8 CR3=000000000bcbf000 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=fdd31042084d5f9fea41142571503855 XMM02=0000000000305718eff9b2d0a8fce9cb XMM03=00000000003057e82c67c8bc2e329bc3 XMM04=c19f6156d5b2893800000000000ae988 XMM05=14648eaa1277bab1000000000031f4e0 XMM06=5bebbdbc32082b900000000000318cb8 XMM07=e042d86d42eb936e000000000030fc40 XMM08=ad6201f2955d492900000000003057e8 XMM09=00000000000000000000000000000000 XMM10=20200000000020202020202020200000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000