Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 45.839169] ------------[ cut here ]------------ [ 45.840160] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code! [ 45.842162] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#1: sshd/236 [ 45.843617] Modules linked in: [ 45.844285] CPU: 1 UID: 104 PID: 236 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251118 #1 PREEMPT(voluntary) [ 45.846323] Tainted: [W]=WARN [ 45.846936] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 45.848422] RIP: 0010:vmalloc_fix_flags+0x91/0xd0 [ 45.849358] 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 [ 45.852577] RSP: 0018:ffff88801a5a7bc0 EFLAGS: 00010286 [ 45.853556] RAX: 0000000000000000 RBX: ffffed10034b4f78 RCX: ffffffff813a4050 [ 45.854858] RDX: ffff888016193780 RSI: ffffffff813a405e RDI: 0000000000000001 [ 45.856164] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed10034b4f2f [ 45.857461] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0 [ 45.858768] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff88801a5a7df8 [ 45.860070] FS: 00007f576ce0d900(0000) GS:ffff8880e548f000(0000) knlGS:0000000000000000 [ 45.861521] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 45.862604] CR2: 00007ffd99d3eef8 CR3: 000000000e2b7000 CR4: 0000000000350ef0 [ 45.863904] Call Trace: [ 45.864370] [ 45.864836] ? __pfx_vmalloc_fix_flags+0x10/0x10 [ 45.865754] ? __create_object+0x59/0x80 [ 45.866490] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 45.867587] __vmalloc_noprof+0x59/0x60 [ 45.868399] bpf_prog_alloc_no_stats+0x55/0x470 [ 45.869298] ? __pfx_seccomp_check_filter+0x10/0x10 [ 45.870269] bpf_prog_alloc+0x39/0x200 [ 45.871017] ? __pfx_seccomp_check_filter+0x10/0x10 [ 45.871947] bpf_prog_create_from_user+0xb2/0x2f0 [ 45.872865] do_seccomp+0x349/0x25e0 [ 45.873540] ? find_held_lock+0x2b/0x80 [ 45.874308] ? do_prlimit+0x310/0x610 [ 45.875052] ? __pfx_do_seccomp+0x10/0x10 [ 45.875828] ? do_raw_spin_unlock+0x53/0x220 [ 45.876642] ? _raw_spin_unlock+0x1e/0x40 [ 45.877430] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 45.878409] ? static_key_count+0x60/0x80 [ 45.879224] prctl_set_seccomp+0x4e/0x70 [ 45.879999] __do_sys_prctl+0xe6c/0x1d70 [ 45.880808] ? __pfx___do_sys_prctl+0x10/0x10 [ 45.881628] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0 [ 45.882592] ? irqentry_exit+0xf3/0x650 [ 45.883350] do_syscall_64+0xbf/0x430 [ 45.884070] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 45.885009] RIP: 0033:0x7f576d2ff5cd [ 45.885746] 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 [ 45.888912] RSP: 002b:00007ffd99d3cbf0 EFLAGS: 00000246 ORIG_RAX: 000000000000009d [ 45.890305] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f576d2ff5cd [ 45.891409] RDX: 0000559672dbfe00 RSI: 0000000000000002 RDI: 0000000000000016 [ 45.892477] RBP: 00007ffd99d3cc50 R08: 0000000000000000 R09: 00007ffd99d3c2f0 [ 45.893549] R10: 0000000000000000 R11: 0000000000000246 R12: 000055968f3d6240 [ 45.894629] R13: 00007ffd99d3d080 R14: 000055968f3df380 R15: 000055968f3ea540 [ 45.895719] [ 45.896073] irq event stamp: 1747 [ 45.896572] hardirqs last enabled at (1755): [] __up_console_sem+0x78/0x80 [ 45.897868] hardirqs last disabled at (1770): [] __up_console_sem+0x5d/0x80 [ 45.899132] softirqs last enabled at (1768): [] handle_softirqs+0x50c/0x770 [ 45.900421] softirqs last disabled at (1763): [] __irq_exit_rcu+0xc4/0x100 [ 45.901763] ---[ end trace 0000000000000000 ]--- [ 49.390834] ------------[ cut here ]------------ [ 49.391645] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code! [ 49.393481] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#1: sshd/243 [ 49.394813] Modules linked in: [ 49.395350] CPU: 1 UID: 104 PID: 243 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251118 #1 PREEMPT(voluntary) [ 49.397137] Tainted: [W]=WARN [ 49.397602] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 49.398891] RIP: 0010:vmalloc_fix_flags+0x91/0xd0 [ 49.399688] 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 [ 49.402548] RSP: 0018:ffff88800f48fbc0 EFLAGS: 00010286 [ 49.403424] RAX: 0000000000000000 RBX: ffffed1001e91f78 RCX: ffffffff813a4050 [ 49.404567] RDX: ffff888017008000 RSI: ffffffff813a405e RDI: 0000000000000001 [ 49.405670] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed1001e91f2f [ 49.406842] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0 [ 49.407991] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff88800f48fdf8 [ 49.409071] FS: 00007fc1c1f52900(0000) GS:ffff8880e548f000(0000) knlGS:0000000000000000 [ 49.410363] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.411310] CR2: 00007fc1c2444580 CR3: 000000000e40c000 CR4: 0000000000350ef0 [ 49.412483] Call Trace: [ 49.412943] [ 49.413318] ? __pfx_vmalloc_fix_flags+0x10/0x10 [ 49.414142] ? __create_object+0x59/0x80 [ 49.414843] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 49.415723] __vmalloc_noprof+0x59/0x60 [ 49.416363] bpf_prog_alloc_no_stats+0x55/0x470 [ 49.417150] ? __pfx_seccomp_check_filter+0x10/0x10 [ 49.417939] bpf_prog_alloc+0x39/0x200 [ 49.418564] ? __pfx_seccomp_check_filter+0x10/0x10 [ 49.419419] bpf_prog_create_from_user+0xb2/0x2f0 [ 49.420254] do_seccomp+0x349/0x25e0 [ 49.420874] ? __pfx_css_rstat_updated+0x10/0x10 [ 49.421646] ? __pfx_do_seccomp+0x10/0x10 [ 49.422398] ? find_held_lock+0x2b/0x80 [ 49.423103] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 49.423999] ? static_key_count+0x60/0x80 [ 49.424709] prctl_set_seccomp+0x4e/0x70 [ 49.425346] __do_sys_prctl+0xe6c/0x1d70 [ 49.426080] ? __pfx___do_sys_prctl+0x10/0x10 [ 49.426864] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 49.427735] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0 [ 49.428565] ? irqentry_exit+0xf3/0x650 [ 49.429216] do_syscall_64+0xbf/0x430 [ 49.429913] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 49.430793] RIP: 0033:0x7fc1c24445cd [ 49.431406] 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 [ 49.434271] RSP: 002b:00007ffd59864170 EFLAGS: 00000246 ORIG_RAX: 000000000000009d [ 49.435524] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc1c24445cd [ 49.436687] RDX: 000055dd975a4e00 RSI: 0000000000000002 RDI: 0000000000000016 [ 49.437847] RBP: 00007ffd598641d0 R08: 0000000000000000 R09: 00007ffd59863870 [ 49.439034] R10: 0000000000000000 R11: 0000000000000246 R12: 000055ddd32d7ad0 [ 49.440219] R13: 00007ffd59864600 R14: 000055ddd32d8bc0 R15: 000055ddd32e9780 [ 49.441412] [ 49.441811] irq event stamp: 1743 [ 49.442341] hardirqs last enabled at (1751): [] __up_console_sem+0x78/0x80 [ 49.443758] hardirqs last disabled at (1760): [] __up_console_sem+0x5d/0x80 [ 49.445106] softirqs last enabled at (1536): [] handle_softirqs+0x50c/0x770 [ 49.446545] softirqs last disabled at (1527): [] __irq_exit_rcu+0xc4/0x100 [ 49.447905] ---[ end trace 0000000000000000 ]--- [ 50.226964] ------------[ cut here ]------------ [ 50.227904] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code! [ 50.229889] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#1: sshd/250 [ 50.231379] Modules linked in: [ 50.232013] CPU: 1 UID: 104 PID: 250 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251118 #1 PREEMPT(voluntary) [ 50.233997] Tainted: [W]=WARN [ 50.234539] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.235989] RIP: 0010:vmalloc_fix_flags+0x91/0xd0 [ 50.236911] 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 [ 50.240074] RSP: 0018:ffff888013aefbc0 EFLAGS: 00010286 [ 50.241049] RAX: 0000000000000000 RBX: ffffed100275df78 RCX: ffffffff813a4050 [ 50.242330] RDX: ffff88800f788000 RSI: ffffffff813a405e RDI: 0000000000000001 [ 50.243596] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed100275df2f [ 50.244882] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0 [ 50.246193] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff888013aefdf8 [ 50.247483] FS: 00007faef9299900(0000) GS:ffff8880e548f000(0000) knlGS:0000000000000000 [ 50.248912] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.249987] CR2: 00007ffc1ea97ef8 CR3: 000000000e4db000 CR4: 0000000000350ef0 [ 50.251276] Call Trace: [ 50.251796] [ 50.252202] ? __pfx_vmalloc_fix_flags+0x10/0x10 [ 50.253123] ? __create_object+0x59/0x80 [ 50.253915] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 50.254883] __vmalloc_noprof+0x59/0x60 [ 50.255598] bpf_prog_alloc_no_stats+0x55/0x470 [ 50.256478] ? __pfx_seccomp_check_filter+0x10/0x10 [ 50.257403] bpf_prog_alloc+0x39/0x200 [ 50.258166] ? __pfx_seccomp_check_filter+0x10/0x10 [ 50.259109] bpf_prog_create_from_user+0xb2/0x2f0 [ 50.260002] do_seccomp+0x349/0x25e0 [ 50.260709] ? find_held_lock+0x2b/0x80 [ 50.261413] ? do_prlimit+0x310/0x610 [ 50.262174] ? __pfx_do_seccomp+0x10/0x10 [ 50.262958] ? do_raw_spin_unlock+0x53/0x220 [ 50.263803] ? _raw_spin_unlock+0x1e/0x40 [ 50.264532] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 50.265504] ? static_key_count+0x60/0x80 [ 50.266316] prctl_set_seccomp+0x4e/0x70 [ 50.267081] __do_sys_prctl+0xe6c/0x1d70 [ 50.267868] ? __pfx___do_sys_prctl+0x10/0x10 [ 50.268725] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0 [ 50.269648] ? irqentry_exit+0xf3/0x650 [ 50.270434] do_syscall_64+0xbf/0x430 [ 50.271175] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 50.272126] RIP: 0033:0x7faef978b5cd [ 50.272832] 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 [ 50.276005] RSP: 002b:00007ffc1ea952f0 EFLAGS: 00000246 ORIG_RAX: 000000000000009d [ 50.277375] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007faef978b5cd [ 50.278674] RDX: 0000561195059e00 RSI: 0000000000000002 RDI: 0000000000000016 [ 50.279958] RBP: 00007ffc1ea95350 R08: 0000000000000000 R09: 00007ffc1ea949f0 [ 50.281234] R10: 0000000000000000 R11: 0000000000000246 R12: 00005611d33afad0 [ 50.282528] R13: 00007ffc1ea95780 R14: 00005611d33b0bc0 R15: 00005611d33c1780 [ 50.283824] [ 50.284245] irq event stamp: 1839 [ 50.284888] hardirqs last enabled at (1849): [] __up_console_sem+0x78/0x80 [ 50.286425] hardirqs last disabled at (1858): [] __up_console_sem+0x5d/0x80 [ 50.287953] softirqs last enabled at (1798): [] handle_softirqs+0x50c/0x770 [ 50.289501] softirqs last disabled at (1793): [] __irq_exit_rcu+0xc4/0x100 [ 50.291025] ---[ end trace 0000000000000000 ]--- Warning: Permanently added '[localhost]:19532' (ECDSA) to the list of known hosts. 2025/11/18 22:41:45 fuzzer started 2025/11/18 22:41:46 dialing manager at localhost:34383 2025/11/18 22:41:46 checking machine... 2025/11/18 22:41:46 checking revisions... [ 51.194140] kmemleak: Automatic memory scanning thread ended 2025/11/18 22:41:46 testing simple program... [ 51.291097] cgroup: Unknown subsys name 'net' [ 51.363214] cgroup: Unknown subsys name 'cpuset' [ 51.380904] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program VM DIAGNOSIS: 22:41:45 Registers: info registers vcpu 0 RAX=0000000000041959 RBX=0000000000000000 RCX=ffffffff84c72d57 RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff814d2c90 RBP=dffffc0000000000 RSP=ffffffff85c07e00 R8 =0000000000000001 R9 =ffffed100d9c639a R10=ffff88806ce31cd3 R11=0000000000000001 R12=ffffffff8664f850 R13=1ffffffff0b80fc7 R14=0000000000000000 R15=0000000000000000 RIP=ffffffff84c7174e RFL=00000206 [-----P-] 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 ffff8880e538f000 00000000 00000000 LDT=0000 fffffe7c00000000 00000000 00000000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007ffef1af6568 CR3=0000000009c51000 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=2035343a31343a323220383120766f4e XMM01=657463656e6e6f63736944203a5d3234 XMM02=302e303120746f6f722072657375206d XMM03=203a5d3234325b646873732072656c6c XMM04=69662068637573206f4e203a656c6163 XMM05=3a656c696620766e65206e65706f206f XMM06=65733a6468737328766e655f6d617020 XMM07=6b7a79732034343a31343a3232203831 XMM08=30343d7974696c696261706163202279 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000000 RBX=ffff88800edcf7b8 RCX=ffff88806cf08984 RDX=0000000000000001 RSI=ffffffff85e1ffe0 RDI=ffff88801a44c200 RBP=ffff88800edc8000 RSP=ffff88806cf08998 R8 =ffffffff869d948c R9 =0000000000000000 R10=000000000003c9ed R11=000000000000031f R12=ffffffff8135e7a2 R13=0000000000000206 R14=ffff88801a44b780 R15=0000000000000002 RIP=ffffffff81529025 RFL=00000296 [--S-AP-] 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 00007fc1c1f52900 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=00007fc1c2509618 CR3=000000001dcc0000 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