Debian GNU/Linux 11 syzkaller ttyS0
syzkaller login: [ 45.659668] ------------[ cut here ]------------
[ 45.660568] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code!
[ 45.662606] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#1: sshd/234
[ 45.664100] Modules linked in:
[ 45.664697] CPU: 1 UID: 104 PID: 234 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251118 #1 PREEMPT(voluntary)
[ 45.666674] Tainted: [W]=WARN
[ 45.667263] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[ 45.668729] RIP: 0010:vmalloc_fix_flags+0x91/0xd0
[ 45.669655] 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
[ 45.672806] RSP: 0018:ffff88801916fbc0 EFLAGS: 00010286
[ 45.673770] RAX: 0000000000000000 RBX: ffffed100322df78 RCX: ffffffff813a4050
[ 45.675033] RDX: ffff88800f0a9bc0 RSI: ffffffff813a405e RDI: 0000000000000001
[ 45.676316] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed100322df2f
[ 45.677583] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0
[ 45.678851] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff88801916fdf8
[ 45.680119] FS: 00007fa2e04a4900(0000) GS:ffff8880e548f000(0000) knlGS:0000000000000000
[ 45.681549] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 45.682607] CR2: 00007fa2e0996580 CR3: 0000000009c7c000 CR4: 0000000000350ef0
[ 45.683885] Call Trace:
[ 45.684388]
[ 45.684799] ? __pfx_vmalloc_fix_flags+0x10/0x10
[ 45.685701] ? __create_object+0x59/0x80
[ 45.686472] ? trace_irq_enable.constprop.0+0xc2/0x100
[ 45.687436] __vmalloc_noprof+0x59/0x60
[ 45.688185] bpf_prog_alloc_no_stats+0x55/0x470
[ 45.689040] ? __pfx_seccomp_check_filter+0x10/0x10
[ 45.689931] bpf_prog_alloc+0x39/0x200
[ 45.690662] ? __pfx_seccomp_check_filter+0x10/0x10
[ 45.691595] bpf_prog_create_from_user+0xb2/0x2f0
[ 45.692491] do_seccomp+0x349/0x25e0
[ 45.693194] ? __pfx_css_rstat_updated+0x10/0x10
[ 45.694090] ? __pfx_do_seccomp+0x10/0x10
[ 45.694829] ? find_held_lock+0x2b/0x80
[ 45.695578] ? __sanitizer_cov_trace_switch+0x54/0x90
[ 45.696537] ? static_key_count+0x60/0x80
[ 45.697352] prctl_set_seccomp+0x4e/0x70
[ 45.698129] __do_sys_prctl+0xe6c/0x1d70
[ 45.698873] ? __pfx___do_sys_prctl+0x10/0x10
[ 45.699707] ? trace_irq_enable.constprop.0+0xc2/0x100
[ 45.700663] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0
[ 45.701626] ? irqentry_exit+0xf3/0x650
[ 45.702398] do_syscall_64+0xbf/0x430
[ 45.703130] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 45.704074] RIP: 0033:0x7fa2e09965cd
[ 45.704723] 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
[ 45.707876] RSP: 002b:00007ffd37a6adb0 EFLAGS: 00000246 ORIG_RAX: 000000000000009d
[ 45.709233] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa2e09965cd
[ 45.710520] RDX: 00005573745a5e00 RSI: 0000000000000002 RDI: 0000000000000016
[ 45.711811] RBP: 00007ffd37a6ae10 R08: 0000000000000000 R09: 00007ffd37a6a4b0
[ 45.713091] R10: 0000000000000000 R11: 0000000000000246 R12: 00005573991272b0
[ 45.714390] R13: 00007ffd37a6b240 R14: 0000557399129d20 R15: 000055739913b8d0
[ 45.715692]
[ 45.716143] irq event stamp: 1713
[ 45.716743] hardirqs last enabled at (1721): [] __up_console_sem+0x78/0x80
[ 45.718257] hardirqs last disabled at (1730): [] __up_console_sem+0x5d/0x80
[ 45.719763] softirqs last enabled at (1700): [] handle_softirqs+0x50c/0x770
[ 45.721298] softirqs last disabled at (1695): [] __irq_exit_rcu+0xc4/0x100
[ 45.722818] ---[ end trace 0000000000000000 ]---
[ 48.507387] ------------[ cut here ]------------
[ 48.508619] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code!
[ 48.511185] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#1: sshd/242
[ 48.512823] Modules linked in:
[ 48.513646] CPU: 1 UID: 104 PID: 242 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251118 #1 PREEMPT(voluntary)
[ 48.515944] Tainted: [W]=WARN
[ 48.516610] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[ 48.518397] RIP: 0010:vmalloc_fix_flags+0x91/0xd0
[ 48.519359] 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
[ 48.522648] RSP: 0018:ffff88801a25fbc0 EFLAGS: 00010286
[ 48.523674] RAX: 0000000000000000 RBX: ffffed100344bf78 RCX: ffffffff813a4050
[ 48.525012] RDX: ffff888015b3d340 RSI: ffffffff813a405e RDI: 0000000000000001
[ 48.526367] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed100344bf2f
[ 48.527744] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0
[ 48.529085] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff88801a25fdf8
[ 48.530451] FS: 00007fe1c2bd7900(0000) GS:ffff8880e548f000(0000) knlGS:0000000000000000
[ 48.531961] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 48.533104] CR2: 00007fff54735ef7 CR3: 000000000e1ee000 CR4: 0000000000350ef0
[ 48.534492] Call Trace:
[ 48.535032]
[ 48.535473] ? __pfx_vmalloc_fix_flags+0x10/0x10
[ 48.536415] ? __create_object+0x59/0x80
[ 48.537242] ? trace_irq_enable.constprop.0+0xc2/0x100
[ 48.538265] __vmalloc_noprof+0x59/0x60
[ 48.539116] bpf_prog_alloc_no_stats+0x55/0x470
[ 48.540070] ? __pfx_seccomp_check_filter+0x10/0x10
[ 48.541045] bpf_prog_alloc+0x39/0x200
[ 48.541798] ? __pfx_seccomp_check_filter+0x10/0x10
[ 48.542800] bpf_prog_create_from_user+0xb2/0x2f0
[ 48.543757] do_seccomp+0x349/0x25e0
[ 48.544521] ? find_held_lock+0x2b/0x80
[ 48.545306] ? do_prlimit+0x310/0x610
[ 48.546110] ? __pfx_do_seccomp+0x10/0x10
[ 48.546904] ? do_raw_spin_unlock+0x53/0x220
[ 48.547777] ? _raw_spin_unlock+0x1e/0x40
[ 48.548608] ? __sanitizer_cov_trace_switch+0x54/0x90
[ 48.549624] ? static_key_count+0x60/0x80
[ 48.550488] prctl_set_seccomp+0x4e/0x70
[ 48.551309] __do_sys_prctl+0xe6c/0x1d70
[ 48.552158] ? __pfx___do_sys_prctl+0x10/0x10
[ 48.553066] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0
[ 48.554111] ? irqentry_exit+0xf3/0x650
[ 48.554959] do_syscall_64+0xbf/0x430
[ 48.555807] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 48.556804] RIP: 0033:0x7fe1c30c95cd
[ 48.557583] 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
[ 48.560839] RSP: 002b:00007fff54734c30 EFLAGS: 00000246 ORIG_RAX: 000000000000009d
[ 48.562277] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe1c30c95cd
[ 48.563627] RDX: 0000555a0b28be00 RSI: 0000000000000002 RDI: 0000000000000016
[ 48.564946] RBP: 00007fff54734c90 R08: 0000000000000000 R09: 00007fff54734330
[ 48.566339] R10: 0000000000000000 R11: 0000000000000246 R12: 0000555a32ac02b0
[ 48.567679] R13: 00007fff547350c0 R14: 0000555a32ac2d20 R15: 0000555a32ad48d0
[ 48.569029]
[ 48.569489] irq event stamp: 1771
[ 48.570174] hardirqs last enabled at (1781): [] __up_console_sem+0x78/0x80
[ 48.571482] hardirqs last disabled at (1790): [] __up_console_sem+0x5d/0x80
[ 48.572777] softirqs last enabled at (1692): [] handle_softirqs+0x50c/0x770
[ 48.574127] softirqs last disabled at (1687): [] __irq_exit_rcu+0xc4/0x100
[ 48.575427] ---[ end trace 0000000000000000 ]---
[ 49.213681] ------------[ cut here ]------------
[ 49.214711] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code!
[ 49.216897] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#1: sshd/249
[ 49.218601] Modules linked in:
[ 49.219303] CPU: 1 UID: 104 PID: 249 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251118 #1 PREEMPT(voluntary)
[ 49.221481] Tainted: [W]=WARN
[ 49.222142] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[ 49.223748] RIP: 0010:vmalloc_fix_flags+0x91/0xd0
[ 49.224738] 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
[ 49.228196] RSP: 0018:ffff88800ce5fbc0 EFLAGS: 00010286
[ 49.229258] RAX: 0000000000000000 RBX: ffffed10019cbf78 RCX: ffffffff813a4050
[ 49.230663] RDX: ffff88801bec1bc0 RSI: ffffffff813a405e RDI: 0000000000000001
[ 49.232057] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed10019cbf2f
[ 49.233458] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0
[ 49.234835] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff88800ce5fdf8
[ 49.236224] FS: 00007f7499ee5900(0000) GS:ffff8880e548f000(0000) knlGS:0000000000000000
[ 49.237794] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 49.238946] CR2: 00007f749a3d7580 CR3: 000000000d8d8000 CR4: 0000000000350ef0
[ 49.240360] Call Trace:
[ 49.240856]
[ 49.241368] ? __pfx_vmalloc_fix_flags+0x10/0x10
[ 49.242340] ? __create_object+0x59/0x80
[ 49.243207] ? trace_irq_enable.constprop.0+0xc2/0x100
[ 49.244256] __vmalloc_noprof+0x59/0x60
[ 49.245072] bpf_prog_alloc_no_stats+0x55/0x470
[ 49.245963] ? __pfx_seccomp_check_filter+0x10/0x10
[ 49.247013] bpf_prog_alloc+0x39/0x200
[ 49.247753] ? __pfx_seccomp_check_filter+0x10/0x10
[ 49.248739] bpf_prog_create_from_user+0xb2/0x2f0
[ 49.249892] do_seccomp+0x349/0x25e0
[ 49.250928] ? __pfx_css_rstat_updated+0x10/0x10
[ 49.252228] ? __pfx_do_seccomp+0x10/0x10
[ 49.253379] ? find_held_lock+0x2b/0x80
[ 49.254454] ? __sanitizer_cov_trace_switch+0x54/0x90
[ 49.255791] ? static_key_count+0x60/0x80
[ 49.256897] prctl_set_seccomp+0x4e/0x70
[ 49.257851] __do_sys_prctl+0xe6c/0x1d70
[ 49.258739] ? __pfx___do_sys_prctl+0x10/0x10
[ 49.259826] ? trace_irq_enable.constprop.0+0xc2/0x100
[ 49.260893] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0
[ 49.262005] ? irqentry_exit+0xf3/0x650
[ 49.262809] do_syscall_64+0xbf/0x430
[ 49.263639] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 49.264683] RIP: 0033:0x7f749a3d75cd
[ 49.265512] 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
[ 49.268909] RSP: 002b:00007ffce942a870 EFLAGS: 00000246 ORIG_RAX: 000000000000009d
[ 49.270355] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f749a3d75cd
[ 49.271508] RDX: 000055b8a86ebe00 RSI: 0000000000000002 RDI: 0000000000000016
[ 49.272661] RBP: 00007ffce942a8d0 R08: 0000000000000000 R09: 00007ffce9429f70
[ 49.273868] R10: 0000000000000000 R11: 0000000000000246 R12: 000055b8c324ead0
[ 49.275054] R13: 00007ffce942ad00 R14: 000055b8c324fbc0 R15: 000055b8c3260780
[ 49.276289]
[ 49.276670] irq event stamp: 1781
[ 49.277278] hardirqs last enabled at (1791): [] __up_console_sem+0x78/0x80
[ 49.278707] hardirqs last disabled at (1800): [] __up_console_sem+0x5d/0x80
[ 49.280118] softirqs last enabled at (1704): [] handle_softirqs+0x50c/0x770
[ 49.281574] softirqs last disabled at (1699): [] __irq_exit_rcu+0xc4/0x100
[ 49.282960] ---[ end trace 0000000000000000 ]---
Warning: Permanently added '[localhost]:29934' (ECDSA) to the list of known hosts.
2025/11/18 18:45:21 fuzzer started
2025/11/18 18:45:21 dialing manager at localhost:34383
2025/11/18 18:45:21 checking machine...
2025/11/18 18:45:21 checking revisions...
[ 50.233193] kmemleak: Automatic memory scanning thread ended
2025/11/18 18:45:21 testing simple program...
[ 50.327029] cgroup: Unknown subsys name 'net'
[ 50.373386] cgroup: Unknown subsys name 'cpuset'
[ 50.388121] cgroup: Unknown subsys name 'rlimit'
executing program
executing program
[ 58.998436] audit: type=1400 audit(1763491530.317:7): avc: denied { execmem } for pid=275 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
VM DIAGNOSIS:
18:45:20 Registers:
info registers vcpu 0
RAX=ffffffff81b2a224 RBX=ffffffff81619130 RCX=ffff888016b9f4ec RDX=1ffff11002d73ebe
RSI=ffffffff81b2a224 RDI=ffff888016b9f660 RBP=ffff888016b9f630 RSP=ffff888016b9f590
R8 =ffffffff86a49dd0 R9 =ffff888016b9f5d8 R10=000000000003c9ed R11=0000000000012f5f
R12=ffff888016b9f660 R13=0000000000000000 R14=ffff888015de1bc0 R15=0000000000092800
RIP=ffffffff81619134 RFL=00000286 [--S--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 00007fe1c2bd7900 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=00007fe1c2b97008 CR3=000000000dc48000 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=0000000000000005 RBX=ffff8880096fb780 RCX=0000000000000001 RDX=0000000000000005
RSI=0000000000000000 RDI=ffffffff85e1ffe0 RBP=ffff8880096fc1d8 RSP=ffff8880097576b8
R8 =0000000000000000 R9 =0000000000000005 R10=0000000000000001 R11=0000000000000000
R12=ffff8880096fc200 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 0000000000000000 00000000 00000000
GS =0000 ffff8880e548f000 00000000 00000000
LDT=0000 fffffe5800000000 00000000 00000000
TR =0040 fffffe000004a000 00004087 00008b00 DPL=0 TSS64-busy
GDT= fffffe0000048000 0000007f
IDT= fffffe0000000000 00000fff
CR0=80050033 CR2=00007ffe3ad23878 CR3=000000000d53c000 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=c6e3d2c49040c588b648158462b5192a
XMM02=0000000000308340eff9b2d0a8fce9cb XMM03=00000000003084102c67c8bc2e329bc3
XMM04=c1dd9ffc512be31100000000000ae988 XMM05=090f1556b20111b30000000000321c60
XMM06=5b75c91c804453420000000000321ae8 XMM07=e042d86d42eb936e0000000000312df8
XMM08=0dc0dcda17e108fe0000000000308410 XMM09=00000000000000000000000000000000
XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000
XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000
XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000