Debian GNU/Linux 11 syzkaller ttyS0
syzkaller login: [ 45.321999] ------------[ cut here ]------------
[ 45.322927] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code!
[ 45.325017] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#1: sshd/233
[ 45.326676] Modules linked in:
[ 45.327283] CPU: 1 UID: 104 PID: 233 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251117 #1 PREEMPT(voluntary)
[ 45.329534] Tainted: [W]=WARN
[ 45.330192] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[ 45.331680] RIP: 0010:vmalloc_fix_flags+0x91/0xd0
[ 45.332556] 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
[ 45.335805] RSP: 0018:ffff888017ac7bc0 EFLAGS: 00010286
[ 45.336781] RAX: 0000000000000000 RBX: ffffed1002f58f78 RCX: ffffffff813a4050
[ 45.338106] RDX: ffff888018268000 RSI: ffffffff813a405e RDI: 0000000000000001
[ 45.339413] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed1002f58f2f
[ 45.340728] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0
[ 45.342028] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff888017ac7df8
[ 45.343314] FS: 00007feef4421900(0000) GS:ffff8880e548f000(0000) knlGS:0000000000000000
[ 45.344761] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 45.345850] CR2: 00007feef4913580 CR3: 000000001c82e000 CR4: 0000000000350ef0
[ 45.347142] Call Trace:
[ 45.347603]
[ 45.348049] ? __pfx_vmalloc_fix_flags+0x10/0x10
[ 45.348943] ? __create_object+0x59/0x80
[ 45.349753] ? trace_irq_enable.constprop.0+0xc2/0x100
[ 45.350723] __vmalloc_noprof+0x59/0x60
[ 45.351436] bpf_prog_alloc_no_stats+0x55/0x470
[ 45.352305] ? __pfx_seccomp_check_filter+0x10/0x10
[ 45.353261] bpf_prog_alloc+0x39/0x200
[ 45.354026] ? __pfx_seccomp_check_filter+0x10/0x10
[ 45.354968] bpf_prog_create_from_user+0xb2/0x2f0
[ 45.355883] do_seccomp+0x349/0x25e0
[ 45.356571] ? __pfx_css_rstat_updated+0x10/0x10
[ 45.357496] ? __pfx_do_seccomp+0x10/0x10
[ 45.358301] ? find_held_lock+0x2b/0x80
[ 45.359083] ? __sanitizer_cov_trace_switch+0x54/0x90
[ 45.360066] ? static_key_count+0x60/0x80
[ 45.360884] prctl_set_seccomp+0x4e/0x70
[ 45.361631] __do_sys_prctl+0xe6c/0x1d70
[ 45.362416] ? __pfx___do_sys_prctl+0x10/0x10
[ 45.363282] ? trace_irq_enable.constprop.0+0xc2/0x100
[ 45.364268] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0
[ 45.365228] ? irqentry_exit+0xf3/0x650
[ 45.366011] do_syscall_64+0xbf/0x430
[ 45.366764] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 45.367722] RIP: 0033:0x7feef49135cd
[ 45.368386] 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
[ 45.371610] RSP: 002b:00007fffb7b504e0 EFLAGS: 00000246 ORIG_RAX: 000000000000009d
[ 45.372976] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007feef49135cd
[ 45.374287] RDX: 000056510f4dfe00 RSI: 0000000000000002 RDI: 0000000000000016
[ 45.375577] RBP: 00007fffb7b50540 R08: 0000000000000000 R09: 00007fffb7b4fbe0
[ 45.376880] R10: 0000000000000000 R11: 0000000000000246 R12: 000056514415bad0
[ 45.378182] R13: 00007fffb7b50970 R14: 000056514415cbc0 R15: 000056514416d780
[ 45.379507]
[ 45.379968] irq event stamp: 1799
[ 45.380577] hardirqs last enabled at (1807): [] __up_console_sem+0x78/0x80
[ 45.382129] hardirqs last disabled at (1816): [] __up_console_sem+0x5d/0x80
[ 45.383676] softirqs last enabled at (1364): [] handle_softirqs+0x50c/0x770
[ 45.385220] softirqs last disabled at (1359): [] __irq_exit_rcu+0xc4/0x100
[ 45.386796] ---[ end trace 0000000000000000 ]---
[ 48.131250] ------------[ cut here ]------------
[ 48.132534] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code!
[ 48.134940] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#1: sshd/240
[ 48.136626] Modules linked in:
[ 48.137349] CPU: 1 UID: 104 PID: 240 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251117 #1 PREEMPT(voluntary)
[ 48.139681] Tainted: [W]=WARN
[ 48.140316] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[ 48.142014] RIP: 0010:vmalloc_fix_flags+0x91/0xd0
[ 48.143069] 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
[ 48.146744] RSP: 0018:ffff88801770fbc0 EFLAGS: 00010286
[ 48.147897] RAX: 0000000000000000 RBX: ffffed1002ee1f78 RCX: ffffffff813a4050
[ 48.149395] RDX: ffff88801758b780 RSI: ffffffff813a405e RDI: 0000000000000001
[ 48.150892] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed1002ee1f2f
[ 48.152390] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0
[ 48.153888] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff88801770fdf8
[ 48.155361] FS: 00007f703877c900(0000) GS:ffff8880e548f000(0000) knlGS:0000000000000000
[ 48.157019] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 48.158264] CR2: 00007ffd17e58ef8 CR3: 0000000020764000 CR4: 0000000000350ef0
[ 48.159754] Call Trace:
[ 48.160280]
[ 48.160808] ? __pfx_vmalloc_fix_flags+0x10/0x10
[ 48.161878] ? __create_object+0x59/0x80
[ 48.162726] ? trace_irq_enable.constprop.0+0xc2/0x100
[ 48.163743] __vmalloc_noprof+0x59/0x60
[ 48.164493] bpf_prog_alloc_no_stats+0x55/0x470
[ 48.165436] ? __pfx_seccomp_check_filter+0x10/0x10
[ 48.166431] bpf_prog_alloc+0x39/0x200
[ 48.167209] ? __pfx_seccomp_check_filter+0x10/0x10
[ 48.168213] bpf_prog_create_from_user+0xb2/0x2f0
[ 48.169174] do_seccomp+0x349/0x25e0
[ 48.169958] ? find_held_lock+0x2b/0x80
[ 48.170767] ? do_prlimit+0x310/0x610
[ 48.171500] ? __pfx_do_seccomp+0x10/0x10
[ 48.172330] ? do_raw_spin_unlock+0x53/0x220
[ 48.173224] ? _raw_spin_unlock+0x1e/0x40
[ 48.174084] ? __sanitizer_cov_trace_switch+0x54/0x90
[ 48.175106] ? static_key_count+0x60/0x80
[ 48.175965] prctl_set_seccomp+0x4e/0x70
[ 48.176780] __do_sys_prctl+0xe6c/0x1d70
[ 48.177582] ? __pfx___do_sys_prctl+0x10/0x10
[ 48.178503] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0
[ 48.179531] ? irqentry_exit+0xf3/0x650
[ 48.180347] do_syscall_64+0xbf/0x430
[ 48.181142] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 48.182196] RIP: 0033:0x7f7038c6e5cd
[ 48.182938] 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
[ 48.186269] RSP: 002b:00007ffd17e574e0 EFLAGS: 00000246 ORIG_RAX: 000000000000009d
[ 48.187705] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7038c6e5cd
[ 48.189055] RDX: 00005602906e0e00 RSI: 0000000000000002 RDI: 0000000000000016
[ 48.190426] RBP: 00007ffd17e57540 R08: 0000000000000000 R09: 00007ffd17e56be0
[ 48.191778] R10: 0000000000000000 R11: 0000000000000246 R12: 00005602a2b58ad0
[ 48.193133] R13: 00007ffd17e57970 R14: 00005602a2b59bc0 R15: 00005602a2b6a780
[ 48.194377]
[ 48.194798] irq event stamp: 1749
[ 48.195313] hardirqs last enabled at (1757): [] __up_console_sem+0x78/0x80
[ 48.196616] hardirqs last disabled at (1766): [] __up_console_sem+0x5d/0x80
[ 48.197920] softirqs last enabled at (1670): [] handle_softirqs+0x50c/0x770
[ 48.199253] softirqs last disabled at (1665): [] __irq_exit_rcu+0xc4/0x100
[ 48.200552] ---[ end trace 0000000000000000 ]---
[ 48.913989] ------------[ cut here ]------------
[ 48.914997] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code!
[ 48.917086] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#0: sshd/247
[ 48.918623] Modules linked in:
[ 48.919271] CPU: 0 UID: 104 PID: 247 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251117 #1 PREEMPT(voluntary)
[ 48.921311] Tainted: [W]=WARN
[ 48.921918] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[ 48.923418] RIP: 0010:vmalloc_fix_flags+0x91/0xd0
[ 48.924349] 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
[ 48.927600] RSP: 0018:ffff888017e6fbc0 EFLAGS: 00010286
[ 48.928602] RAX: 0000000000000000 RBX: ffffed1002fcdf78 RCX: ffffffff813a4050
[ 48.929920] RDX: ffff88801a218000 RSI: ffffffff813a405e RDI: 0000000000000001
[ 48.931227] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed1002fcdf2f
[ 48.932557] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0
[ 48.933895] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff888017e6fdf8
[ 48.935238] FS: 00007f9cff129900(0000) GS:ffff8880e538f000(0000) knlGS:0000000000000000
[ 48.936727] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 48.937829] CR2: 00007fff3792fef8 CR3: 000000001ca98000 CR4: 0000000000350ef0
[ 48.939166] Call Trace:
[ 48.939641]
[ 48.940112] ? __pfx_vmalloc_fix_flags+0x10/0x10
[ 48.941036] ? __create_object+0x59/0x80
[ 48.941846] ? trace_irq_enable.constprop.0+0xc2/0x100
[ 48.942838] __vmalloc_noprof+0x59/0x60
[ 48.943562] bpf_prog_alloc_no_stats+0x55/0x470
[ 48.944437] ? __pfx_seccomp_check_filter+0x10/0x10
[ 48.945377] bpf_prog_alloc+0x39/0x200
[ 48.946122] ? __pfx_seccomp_check_filter+0x10/0x10
[ 48.947058] bpf_prog_create_from_user+0xb2/0x2f0
[ 48.947969] do_seccomp+0x349/0x25e0
[ 48.948645] ? find_held_lock+0x2b/0x80
[ 48.949400] ? do_prlimit+0x310/0x610
[ 48.950150] ? __pfx_do_seccomp+0x10/0x10
[ 48.950941] ? do_raw_spin_unlock+0x53/0x220
[ 48.951786] ? _raw_spin_unlock+0x1e/0x40
[ 48.952514] ? __sanitizer_cov_trace_switch+0x54/0x90
[ 48.953508] ? static_key_count+0x60/0x80
[ 48.954318] prctl_set_seccomp+0x4e/0x70
[ 48.955087] __do_sys_prctl+0xe6c/0x1d70
[ 48.955875] ? __pfx___do_sys_prctl+0x10/0x10
[ 48.956749] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0
[ 48.957738] ? irqentry_exit+0xf3/0x650
[ 48.958457] do_syscall_64+0xbf/0x430
[ 48.959194] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 48.960159] RIP: 0033:0x7f9cff61b5cd
[ 48.960860] 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
[ 48.964019] RSP: 002b:00007fff3792db60 EFLAGS: 00000246 ORIG_RAX: 000000000000009d
[ 48.965398] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9cff61b5cd
[ 48.966694] RDX: 0000556caa264e00 RSI: 0000000000000002 RDI: 0000000000000016
[ 48.967977] RBP: 00007fff3792dbc0 R08: 0000000000000000 R09: 00007fff3792d260
[ 48.969249] R10: 0000000000000000 R11: 0000000000000246 R12: 0000556ce6d92b10
[ 48.970537] R13: 00007fff3792dff0 R14: 0000556ce6d932b0 R15: 0000556ce6da76f0
[ 48.971825]
[ 48.972241] irq event stamp: 1825
[ 48.972886] hardirqs last enabled at (1835): [] __up_console_sem+0x78/0x80
[ 48.974419] hardirqs last disabled at (1844): [] __up_console_sem+0x5d/0x80
[ 48.975933] softirqs last enabled at (1784): [] handle_softirqs+0x50c/0x770
[ 48.977501] softirqs last disabled at (1779): [] __irq_exit_rcu+0xc4/0x100
[ 48.978982] ---[ end trace 0000000000000000 ]---
Warning: Permanently added '[localhost]:2899' (ECDSA) to the list of known hosts.
2025/11/17 18:39:26 fuzzer started
2025/11/17 18:39:26 dialing manager at localhost:37895
2025/11/17 18:39:26 checking machine...
2025/11/17 18:39:26 checking revisions...
[ 49.890466] kmemleak: Automatic memory scanning thread ended
2025/11/17 18:39:27 testing simple program...
[ 49.980803] cgroup: Unknown subsys name 'net'
[ 50.036562] cgroup: Unknown subsys name 'cpuset'
[ 50.052533] cgroup: Unknown subsys name 'rlimit'
executing program
executing program
VM DIAGNOSIS:
18:39:26 Registers:
info registers vcpu 0
RAX=0000000000000004 RBX=ffff888017588000 RCX=ffffffff87cf62d0 RDX=0000000000000001
RSI=0000000000000000 RDI=0000000000000001 RBP=ffff888017588a58 RSP=ffff888014737528
R8 =0000000000000000 R9 =0000000000000005 R10=0000000000000001 R11=0000000000000000
R12=ffff888017588a80 R13=0000000000000000 R14=0000000000000000 R15=0000000000000004
RIP=ffffffff81527203 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 00007f703877c900 00000000 00000000
GS =0000 ffff8880e538f000 00000000 00000000
LDT=0000 fffffe5000000000 00000000 00000000
TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy
GDT= fffffe0000001000 0000007f
IDT= fffffe0000000000 00000fff
CR0=80050033 CR2=00007f7038735008 CR3=00000000206db000 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=0000000000000000 RBX=ffff888020c933f8 RCX=ffffffff815c4c58 RDX=1ffff1100419267f
RSI=0000000000009664 RDI=ffffffff85e2d7a0 RBP=ffffffff85e2b980 RSP=ffff88806cf08e38
R8 =ffff88806cf38200 R9 =fffffbfff0cc9eca R10=ffffffff8664f657 R11=0000000000000001
R12=0000000000000000 R13=0000000000009664 R14=ffff88806cf381e8 R15=ffff88806cf38152
RIP=ffffffff815ccbdd RFL=00000046 [---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 0000000000000000 00000000 00000000
GS =0000 ffff8880e548f000 00000000 00000000
LDT=0000 fffffe7400000000 00000000 00000000
TR =0040 fffffe000004a000 00004087 00008b00 DPL=0 TSS64-busy
GDT= fffffe0000048000 0000007f
IDT= fffffe0000000000 00000fff
CR0=80050033 CR2=00007f2f31f81000 CR3=000000000e871000 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=af462c1f71088eaa3d490873681cf021
XMM02=00000000003033e8ec2efd57dc4c00df XMM03=000000000030ee50ee8e4815198ceec3
XMM04=62ebd8609dddae0400000000000ae988 XMM05=07c8bb74b6c04a44000000000031ee28
XMM06=26ed274f175dd1d50000000000318d08 XMM07=e042d86d42eb936e000000000030f0d0
XMM08=ee8e4815198ceec30000000000303448 XMM09=00000000000000000000000000000000
XMM10=20200000000020202020202020200000 XMM11=00000000000000000000000000000000
XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000
XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000