Debian GNU/Linux 11 syzkaller ttyS0
syzkaller login: [ 54.128681] ------------[ cut here ]------------
[ 54.129623] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code!
[ 54.131657] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#1: sshd/236
[ 54.133160] Modules linked in:
[ 54.134074] CPU: 1 UID: 104 PID: 236 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251117 #1 PREEMPT(voluntary)
[ 54.136243] Tainted: [W]=WARN
[ 54.136980] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[ 54.138558] RIP: 0010:vmalloc_fix_flags+0x91/0xd0
[ 54.139478] 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
[ 54.142761] RSP: 0018:ffff88801ab6fbc0 EFLAGS: 00010286
[ 54.143756] RAX: 0000000000000000 RBX: ffffed100356df78 RCX: ffffffff813a4050
[ 54.145052] RDX: ffff88801609d340 RSI: ffffffff813a405e RDI: 0000000000000001
[ 54.146354] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed100356df2f
[ 54.147820] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0
[ 54.149121] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff88801ab6fdf8
[ 54.150443] FS: 00007f6a921ad900(0000) GS:ffff8880e548f000(0000) knlGS:0000000000000000
[ 54.151899] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 54.152963] CR2: 00007ffc5d5d4ef7 CR3: 000000000c509000 CR4: 0000000000350ef0
[ 54.154323] Call Trace:
[ 54.154926]
[ 54.155437] ? __pfx_vmalloc_fix_flags+0x10/0x10
[ 54.156463] ? __create_object+0x59/0x80
[ 54.157319] ? trace_irq_enable.constprop.0+0xc2/0x100
[ 54.158443] __vmalloc_noprof+0x59/0x60
[ 54.159154] bpf_prog_alloc_no_stats+0x55/0x470
[ 54.160096] ? __pfx_seccomp_check_filter+0x10/0x10
[ 54.161072] bpf_prog_alloc+0x39/0x200
[ 54.161950] ? __pfx_seccomp_check_filter+0x10/0x10
[ 54.163029] bpf_prog_create_from_user+0xb2/0x2f0
[ 54.164083] do_seccomp+0x349/0x25e0
[ 54.164919] ? find_held_lock+0x2b/0x80
[ 54.165821] ? do_prlimit+0x310/0x610
[ 54.166687] ? __pfx_do_seccomp+0x10/0x10
[ 54.167608] ? do_raw_spin_unlock+0x53/0x220
[ 54.168587] ? _raw_spin_unlock+0x1e/0x40
[ 54.169518] ? __sanitizer_cov_trace_switch+0x54/0x90
[ 54.170639] ? static_key_count+0x60/0x80
[ 54.171572] prctl_set_seccomp+0x4e/0x70
[ 54.172470] __do_sys_prctl+0xe6c/0x1d70
[ 54.173326] ? __pfx___do_sys_prctl+0x10/0x10
[ 54.174330] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0
[ 54.175497] ? irqentry_exit+0xf3/0x650
[ 54.176325] do_syscall_64+0xbf/0x430
[ 54.177197] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 54.178303] RIP: 0033:0x7f6a9269f5cd
[ 54.179243] 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
[ 54.182694] RSP: 002b:00007ffc5d5d2bb0 EFLAGS: 00000246 ORIG_RAX: 000000000000009d
[ 54.184043] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6a9269f5cd
[ 54.185315] RDX: 000056403f929e00 RSI: 0000000000000002 RDI: 0000000000000016
[ 54.186500] RBP: 00007ffc5d5d2c10 R08: 0000000000000000 R09: 00007ffc5d5d22b0
[ 54.187541] R10: 0000000000000000 R11: 0000000000000246 R12: 0000564065b80b10
[ 54.188591] R13: 00007ffc5d5d3040 R14: 0000564065b812b0 R15: 0000564065b956f0
[ 54.189657]
[ 54.189998] irq event stamp: 1853
[ 54.190533] hardirqs last enabled at (1863): [] __up_console_sem+0x78/0x80
[ 54.191754] hardirqs last disabled at (1872): [] __up_console_sem+0x5d/0x80
[ 54.192975] softirqs last enabled at (1764): [] handle_softirqs+0x50c/0x770
[ 54.194235] softirqs last disabled at (1751): [] __irq_exit_rcu+0xc4/0x100
[ 54.195454] ---[ end trace 0000000000000000 ]---
[ 56.984158] ------------[ cut here ]------------
[ 56.984606] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code!
[ 56.985620] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#0: sshd/245
[ 56.986538] Modules linked in:
[ 56.986908] CPU: 0 UID: 104 PID: 245 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251117 #1 PREEMPT(voluntary)
[ 56.988176] Tainted: [W]=WARN
[ 56.988562] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[ 56.989671] RIP: 0010:vmalloc_fix_flags+0x91/0xd0
[ 56.990227] 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
[ 56.992275] RSP: 0018:ffff888016defbc0 EFLAGS: 00010286
[ 56.992896] RAX: 0000000000000000 RBX: ffffed1002dbdf78 RCX: ffffffff813a4050
[ 56.993720] RDX: ffff8880146a9bc0 RSI: ffffffff813a405e RDI: 0000000000000001
[ 56.994561] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed1002dbdf2f
[ 56.995347] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0
[ 56.996168] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff888016defdf8
[ 56.996996] FS: 00007fcfc5fd5900(0000) GS:ffff8880e538f000(0000) knlGS:0000000000000000
[ 56.997936] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 56.998618] CR2: 00007fcfc64c7580 CR3: 00000000208eb000 CR4: 0000000000350ef0
[ 56.999444] Call Trace:
[ 56.999737]
[ 57.000034] ? __pfx_vmalloc_fix_flags+0x10/0x10
[ 57.000722] ? __create_object+0x59/0x80
[ 57.001263] ? trace_irq_enable.constprop.0+0xc2/0x100
[ 57.001887] __vmalloc_noprof+0x59/0x60
[ 57.002337] bpf_prog_alloc_no_stats+0x55/0x470
[ 57.002882] ? __pfx_seccomp_check_filter+0x10/0x10
[ 57.003466] bpf_prog_alloc+0x39/0x200
[ 57.003904] ? __pfx_seccomp_check_filter+0x10/0x10
[ 57.004491] bpf_prog_create_from_user+0xb2/0x2f0
[ 57.005050] do_seccomp+0x349/0x25e0
[ 57.005517] ? __pfx_css_rstat_updated+0x10/0x10
[ 57.006056] ? __pfx_do_seccomp+0x10/0x10
[ 57.006581] ? find_held_lock+0x2b/0x80
[ 57.007037] ? __sanitizer_cov_trace_switch+0x54/0x90
[ 57.007649] ? static_key_count+0x60/0x80
[ 57.008126] prctl_set_seccomp+0x4e/0x70
[ 57.008617] __do_sys_prctl+0xe6c/0x1d70
[ 57.009100] ? __pfx___do_sys_prctl+0x10/0x10
[ 57.009641] ? trace_irq_enable.constprop.0+0xc2/0x100
[ 57.010224] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0
[ 57.010841] ? irqentry_exit+0xf3/0x650
[ 57.011297] do_syscall_64+0xbf/0x430
[ 57.011777] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 57.012353] RIP: 0033:0x7fcfc64c75cd
[ 57.012799] 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
[ 57.014838] RSP: 002b:00007fff12f12a20 EFLAGS: 00000246 ORIG_RAX: 000000000000009d
[ 57.015697] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fcfc64c75cd
[ 57.016510] RDX: 0000563af1546e00 RSI: 0000000000000002 RDI: 0000000000000016
[ 57.017299] RBP: 00007fff12f12a80 R08: 0000000000000000 R09: 00007fff12f12120
[ 57.018122] R10: 0000000000000000 R11: 0000000000000246 R12: 0000563af960f2b0
[ 57.018941] R13: 00007fff12f12eb0 R14: 0000563af9611d20 R15: 0000563af96238d0
[ 57.019766]
[ 57.020032] irq event stamp: 1789
[ 57.020447] hardirqs last enabled at (1799): [] __up_console_sem+0x78/0x80
[ 57.021432] hardirqs last disabled at (1808): [] __up_console_sem+0x5d/0x80
[ 57.022408] softirqs last enabled at (1374): [] handle_softirqs+0x50c/0x770
[ 57.023359] softirqs last disabled at (1353): [] __irq_exit_rcu+0xc4/0x100
[ 57.024334] ---[ end trace 0000000000000000 ]---
[ 57.815582] ------------[ cut here ]------------
[ 57.816532] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code!
[ 57.818595] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#0: sshd/252
[ 57.820057] Modules linked in:
[ 57.820701] CPU: 0 UID: 104 PID: 252 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251117 #1 PREEMPT(voluntary)
[ 57.822708] Tainted: [W]=WARN
[ 57.823268] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[ 57.824739] RIP: 0010:vmalloc_fix_flags+0x91/0xd0
[ 57.825675] 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
[ 57.828916] RSP: 0018:ffff888015887bc0 EFLAGS: 00010286
[ 57.829927] RAX: 0000000000000000 RBX: ffffed1002b10f78 RCX: ffffffff813a4050
[ 57.831225] RDX: ffff888017a33780 RSI: ffffffff813a405e RDI: 0000000000000001
[ 57.832532] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed1002b10f2f
[ 57.833850] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000400dc0
[ 57.835157] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff888015887df8
[ 57.836464] FS: 00007f7073287900(0000) GS:ffff8880e538f000(0000) knlGS:0000000000000000
[ 57.837923] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 57.838988] CR2: 00007ffd1effeef7 CR3: 00000000208eb000 CR4: 0000000000350ef0
[ 57.840288] Call Trace:
[ 57.840803]
[ 57.841230] ? __pfx_vmalloc_fix_flags+0x10/0x10
[ 57.842136] ? __create_object+0x59/0x80
[ 57.842932] ? trace_irq_enable.constprop.0+0xc2/0x100
[ 57.843921] __vmalloc_noprof+0x59/0x60
[ 57.844692] bpf_prog_alloc_no_stats+0x55/0x470
[ 57.845595] ? __pfx_seccomp_check_filter+0x10/0x10
[ 57.846546] bpf_prog_alloc+0x39/0x200
[ 57.847311] ? __pfx_seccomp_check_filter+0x10/0x10
[ 57.848295] bpf_prog_create_from_user+0xb2/0x2f0
[ 57.849231] do_seccomp+0x349/0x25e0
[ 57.849950] ? find_held_lock+0x2b/0x80
[ 57.850736] ? do_prlimit+0x310/0x610
[ 57.851480] ? __pfx_do_seccomp+0x10/0x10
[ 57.852237] ? do_raw_spin_unlock+0x53/0x220
[ 57.853091] ? _raw_spin_unlock+0x1e/0x40
[ 57.853879] ? __sanitizer_cov_trace_switch+0x54/0x90
[ 57.854848] ? static_key_count+0x60/0x80
[ 57.855653] prctl_set_seccomp+0x4e/0x70
[ 57.856444] __do_sys_prctl+0xe6c/0x1d70
[ 57.857206] ? __pfx___do_sys_prctl+0x10/0x10
[ 57.858103] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0
[ 57.859091] ? irqentry_exit+0xf3/0x650
[ 57.859862] do_syscall_64+0xbf/0x430
[ 57.860624] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 57.861616] RIP: 0033:0x7f70737795cd
[ 57.862293] 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
[ 57.865448] RSP: 002b:00007ffd1effca60 EFLAGS: 00000246 ORIG_RAX: 000000000000009d
[ 57.866815] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f70737795cd
[ 57.868113] RDX: 0000563eef710e00 RSI: 0000000000000002 RDI: 0000000000000016
[ 57.869427] RBP: 00007ffd1effcac0 R08: 0000000000000000 R09: 00007ffd1effc160
[ 57.870725] R10: 0000000000000000 R11: 0000000000000246 R12: 0000563ef5dce2b0
[ 57.872016] R13: 00007ffd1effcef0 R14: 0000563ef5dd0d20 R15: 0000563ef5de28d0
[ 57.873345]
[ 57.873798] irq event stamp: 1709
[ 57.874452] hardirqs last enabled at (1719): [] __up_console_sem+0x78/0x80
[ 57.876003] hardirqs last disabled at (1728): [] __up_console_sem+0x5d/0x80
[ 57.877547] softirqs last enabled at (1602): [] handle_softirqs+0x50c/0x770
[ 57.879104] softirqs last disabled at (1597): [] __irq_exit_rcu+0xc4/0x100
[ 57.880645] ---[ end trace 0000000000000000 ]---
Warning: Permanently added '[localhost]:31014' (ECDSA) to the list of known hosts.
2025/11/17 17:20:15 fuzzer started
2025/11/17 17:20:16 dialing manager at localhost:37895
2025/11/17 17:20:16 checking machine...
2025/11/17 17:20:16 checking revisions...
[ 58.842927] kmemleak: Automatic memory scanning thread ended
2025/11/17 17:20:16 testing simple program...
[ 58.932682] cgroup: Unknown subsys name 'net'
[ 59.002908] cgroup: Unknown subsys name 'cpuset'
[ 59.017759] cgroup: Unknown subsys name 'rlimit'
executing program
executing program
VM DIAGNOSIS:
17:20:15 Registers:
info registers vcpu 0
RAX=0000000000000000 RBX=ffff88806ce3c2f0 RCX=0000000000000040 RDX=ffff88801681ef28
RSI=ffff888008c4a900 RDI=ffff888008c4b780 RBP=ffff88801681ef70 RSP=ffff88801681ee80
R8 =0000000000000001 R9 =0000000000000001 R10=ffffffff8664f657 R11=0000000000000001
R12=ffff88806ce3c2d0 R13=ffff888008c4b780 R14=ffff888008c4b780 R15=ffff888008c4b780
RIP=ffffffff81ab366c RFL=00000246 [---Z-P-] 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 00007fcfc5fd5900 00000000 00000000
GS =0000 ffff8880e538f000 00000000 00000000
LDT=0000 fffffe2500000000 00000000 00000000
TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy
GDT= fffffe0000001000 0000007f
IDT= fffffe0000000000 00000fff
CR0=80050033 CR2=00007fcfc5fb4020 CR3=000000000c57a000 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=0000000000023b6d RBX=0000000000000001 RCX=ffffffff84c72d57 RDX=0000000000000000
RSI=0000000000000000 RDI=ffffffff814d2c90 RBP=dffffc0000000000 RSP=ffff8880096efe58
R8 =0000000000000001 R9 =ffffed100d9e639a R10=ffff88806cf31cd3 R11=0000000000000001
R12=ffffffff8664f650 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 fffffe6a00000000 00000000 00000000
TR =0040 fffffe000004a000 00004087 00008b00 DPL=0 TSS64-busy
GDT= fffffe0000048000 0000007f
IDT= fffffe0000000000 00000fff
CR0=80050033 CR2=00007fffe6a334f8 CR3=000000000d4d4000 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=2035313a30323a373120373120766f4e XMM01=73732878696e755f6d6170203a5d3334
XMM02=65736f6c63206e6f6973736573203a29 XMM03=755f6d6170203a5d3334325b64687373
XMM04=69662068637573206f4e203a656c6163 XMM05=3a656c696620766e65206e65706f206f
XMM06=65733a6468737328766e655f6d617020 XMM07=6b7a79732034313a30323a3731203731
XMM08=30343d7974696c696261706163202279 XMM09=00000000000000000000000000000000
XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000
XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000
XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000