Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 39.059076] ------------[ cut here ]------------ [ 39.060000] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code! [ 39.062044] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#0: sshd/232 [ 39.063516] Modules linked in: [ 39.064131] CPU: 0 UID: 104 PID: 232 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251117 #1 PREEMPT(voluntary) [ 39.066136] Tainted: [W]=WARN [ 39.066730] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 39.068477] RIP: 0010:vmalloc_fix_flags+0x91/0xd0 [ 39.069360] 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 [ 39.072555] RSP: 0018:ffff8880168d7bc0 EFLAGS: 00010286 [ 39.073547] RAX: 0000000000000000 RBX: ffffed1002d1af78 RCX: ffffffff813a4050 [ 39.074835] RDX: ffff888016071bc0 RSI: ffffffff813a405e RDI: 0000000000000001 [ 39.076114] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed1002d1af2f [ 39.077422] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0 [ 39.078733] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff8880168d7df8 [ 39.080047] FS: 00007f1dbd989900(0000) GS:ffff8880e538f000(0000) knlGS:0000000000000000 [ 39.081529] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.082608] CR2: 00007ffcba5cdef8 CR3: 000000000e63f000 CR4: 0000000000350ef0 [ 39.083908] Call Trace: [ 39.084389] [ 39.084851] ? __pfx_vmalloc_fix_flags+0x10/0x10 [ 39.085771] ? __create_object+0x59/0x80 [ 39.086554] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 39.087536] __vmalloc_noprof+0x59/0x60 [ 39.088274] bpf_prog_alloc_no_stats+0x55/0x470 [ 39.089160] ? __pfx_seccomp_check_filter+0x10/0x10 [ 39.090118] bpf_prog_alloc+0x39/0x200 [ 39.090885] ? __pfx_seccomp_check_filter+0x10/0x10 [ 39.091824] bpf_prog_create_from_user+0xb2/0x2f0 [ 39.092757] do_seccomp+0x349/0x25e0 [ 39.093487] ? find_held_lock+0x2b/0x80 [ 39.094208] ? do_prlimit+0x310/0x610 [ 39.094964] ? __pfx_do_seccomp+0x10/0x10 [ 39.095753] ? do_raw_spin_unlock+0x53/0x220 [ 39.096618] ? _raw_spin_unlock+0x1e/0x40 [ 39.097361] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 39.098324] ? static_key_count+0x60/0x80 [ 39.099141] prctl_set_seccomp+0x4e/0x70 [ 39.099920] __do_sys_prctl+0xe6c/0x1d70 [ 39.100730] ? __pfx___do_sys_prctl+0x10/0x10 [ 39.101603] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0 [ 39.102588] ? irqentry_exit+0xf3/0x650 [ 39.103319] do_syscall_64+0xbf/0x430 [ 39.104053] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 39.105046] RIP: 0033:0x7f1dbde7b5cd [ 39.105750] 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 [ 39.108966] RSP: 002b:00007ffcba5cc340 EFLAGS: 00000246 ORIG_RAX: 000000000000009d [ 39.110344] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1dbde7b5cd [ 39.111645] RDX: 0000563ef132ce00 RSI: 0000000000000002 RDI: 0000000000000016 [ 39.112952] RBP: 00007ffcba5cc3a0 R08: 0000000000000000 R09: 00007ffcba5cba40 [ 39.114026] R10: 0000000000000000 R11: 0000000000000246 R12: 0000563f20faa2b0 [ 39.115108] R13: 00007ffcba5cc7d0 R14: 0000563f20facd20 R15: 0000563f20fbe8d0 [ 39.116206] [ 39.116609] irq event stamp: 1903 [ 39.117117] hardirqs last enabled at (1911): [] __up_console_sem+0x78/0x80 [ 39.118399] hardirqs last disabled at (1920): [] __up_console_sem+0x5d/0x80 [ 39.119696] softirqs last enabled at (1534): [] handle_softirqs+0x50c/0x770 [ 39.121006] softirqs last disabled at (1529): [] __irq_exit_rcu+0xc4/0x100 [ 39.122273] ---[ end trace 0000000000000000 ]--- [ 42.536786] ------------[ cut here ]------------ [ 42.537704] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code! [ 42.539677] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#1: sshd/242 [ 42.541126] Modules linked in: [ 42.541746] CPU: 1 UID: 104 PID: 242 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251117 #1 PREEMPT(voluntary) [ 42.543739] Tainted: [W]=WARN [ 42.544303] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 42.545775] RIP: 0010:vmalloc_fix_flags+0x91/0xd0 [ 42.546962] 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 [ 42.550548] RSP: 0018:ffff888016c9fbc0 EFLAGS: 00010286 [ 42.551629] RAX: 0000000000000000 RBX: ffffed1002d93f78 RCX: ffffffff813a4050 [ 42.553059] RDX: ffff88800f515340 RSI: ffffffff813a405e RDI: 0000000000000001 [ 42.554472] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed1002d93f2f [ 42.555887] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0 [ 42.557322] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff888016c9fdf8 [ 42.558736] FS: 00007f74674b6900(0000) GS:ffff8880e548f000(0000) knlGS:0000000000000000 [ 42.560337] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.561503] CR2: 00007f74679a8580 CR3: 000000000a190000 CR4: 0000000000350ef0 [ 42.562918] Call Trace: [ 42.563481] [ 42.563937] ? __pfx_vmalloc_fix_flags+0x10/0x10 [ 42.564933] ? __create_object+0x59/0x80 [ 42.565795] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 42.566860] __vmalloc_noprof+0x59/0x60 [ 42.567692] bpf_prog_alloc_no_stats+0x55/0x470 [ 42.568663] ? __pfx_seccomp_check_filter+0x10/0x10 [ 42.569694] bpf_prog_alloc+0x39/0x200 [ 42.570511] ? __pfx_seccomp_check_filter+0x10/0x10 [ 42.571535] bpf_prog_create_from_user+0xb2/0x2f0 [ 42.572538] do_seccomp+0x349/0x25e0 [ 42.573280] ? __pfx_css_rstat_updated+0x10/0x10 [ 42.574269] ? __pfx_do_seccomp+0x10/0x10 [ 42.575140] ? find_held_lock+0x2b/0x80 [ 42.575975] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 42.577050] ? static_key_count+0x60/0x80 [ 42.577933] prctl_set_seccomp+0x4e/0x70 [ 42.578778] __do_sys_prctl+0xe6c/0x1d70 [ 42.579645] ? __pfx___do_sys_prctl+0x10/0x10 [ 42.580602] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 42.581671] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0 [ 42.582737] ? irqentry_exit+0xf3/0x650 [ 42.583585] do_syscall_64+0xbf/0x430 [ 42.584364] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 42.585406] RIP: 0033:0x7f74679a85cd [ 42.586155] 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 [ 42.589688] RSP: 002b:00007ffc173971e0 EFLAGS: 00000246 ORIG_RAX: 000000000000009d [ 42.591195] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f74679a85cd [ 42.592622] RDX: 0000559f77bc7e00 RSI: 0000000000000002 RDI: 0000000000000016 [ 42.594024] RBP: 00007ffc17397240 R08: 0000000000000000 R09: 00007ffc173968e0 [ 42.595429] R10: 0000000000000000 R11: 0000000000000246 R12: 0000559fa1f42ad0 [ 42.596863] R13: 00007ffc17397670 R14: 0000559fa1f43bc0 R15: 0000559fa1f54780 [ 42.598285] [ 42.598789] irq event stamp: 1801 [ 42.599486] hardirqs last enabled at (1811): [] __up_console_sem+0x78/0x80 [ 42.601160] hardirqs last disabled at (1820): [] __up_console_sem+0x5d/0x80 [ 42.602826] softirqs last enabled at (1386): [] handle_softirqs+0x50c/0x770 [ 42.604525] softirqs last disabled at (1381): [] __irq_exit_rcu+0xc4/0x100 [ 42.606013] ---[ end trace 0000000000000000 ]--- [ 43.423148] ------------[ cut here ]------------ [ 43.423935] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code! [ 43.425643] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#0: sshd/249 [ 43.426849] Modules linked in: [ 43.427334] CPU: 0 UID: 104 PID: 249 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251117 #1 PREEMPT(voluntary) [ 43.428993] Tainted: [W]=WARN [ 43.429499] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 43.430722] RIP: 0010:vmalloc_fix_flags+0x91/0xd0 [ 43.431488] 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 [ 43.434134] RSP: 0018:ffff888017807bc0 EFLAGS: 00010286 [ 43.434958] RAX: 0000000000000000 RBX: ffffed1002f00f78 RCX: ffffffff813a4050 [ 43.436030] RDX: ffff888017c55340 RSI: ffffffff813a405e RDI: 0000000000000001 [ 43.437104] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed1002f00f2f [ 43.438175] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0 [ 43.439243] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff888017807df8 [ 43.440317] FS: 00007fec4afec900(0000) GS:ffff8880e538f000(0000) knlGS:0000000000000000 [ 43.441520] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.442365] CR2: 00007fec4b5524a6 CR3: 000000000ebf6000 CR4: 0000000000350ef0 [ 43.443428] Call Trace: [ 43.443839] [ 43.444178] ? __pfx_vmalloc_fix_flags+0x10/0x10 [ 43.444926] ? __create_object+0x59/0x80 [ 43.445585] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 43.446352] __vmalloc_noprof+0x59/0x60 [ 43.446993] bpf_prog_alloc_no_stats+0x55/0x470 [ 43.447710] ? __pfx_seccomp_check_filter+0x10/0x10 [ 43.448511] bpf_prog_alloc+0x39/0x200 [ 43.449088] ? __pfx_seccomp_check_filter+0x10/0x10 [ 43.449860] bpf_prog_create_from_user+0xb2/0x2f0 [ 43.450618] do_seccomp+0x349/0x25e0 [ 43.451179] ? find_held_lock+0x2b/0x80 [ 43.451810] ? do_prlimit+0x310/0x610 [ 43.452402] ? __pfx_do_seccomp+0x10/0x10 [ 43.453057] ? do_raw_spin_unlock+0x53/0x220 [ 43.453757] ? _raw_spin_unlock+0x1e/0x40 [ 43.454372] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 43.455167] ? static_key_count+0x60/0x80 [ 43.455836] prctl_set_seccomp+0x4e/0x70 [ 43.456491] __do_sys_prctl+0xe6c/0x1d70 [ 43.457114] ? __pfx___do_sys_prctl+0x10/0x10 [ 43.457826] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0 [ 43.458637] ? irqentry_exit+0xf3/0x650 [ 43.459235] do_syscall_64+0xbf/0x430 [ 43.459848] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 43.460650] RIP: 0033:0x7fec4b4de5cd [ 43.461199] 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 [ 43.463829] RSP: 002b:00007ffd827300a0 EFLAGS: 00000246 ORIG_RAX: 000000000000009d [ 43.464967] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fec4b4de5cd [ 43.466041] RDX: 000055b23f58fe00 RSI: 0000000000000002 RDI: 0000000000000016 [ 43.467119] RBP: 00007ffd82730100 R08: 0000000000000000 R09: 00007ffd8272f7a0 [ 43.468192] R10: 0000000000000000 R11: 0000000000000246 R12: 000055b2408d4240 [ 43.469270] R13: 00007ffd82730530 R14: 000055b2408dd380 R15: 000055b2408e8540 [ 43.470355] [ 43.470736] irq event stamp: 1787 [ 43.471236] hardirqs last enabled at (1795): [] __up_console_sem+0x78/0x80 [ 43.472519] hardirqs last disabled at (1804): [] __up_console_sem+0x5d/0x80 [ 43.473789] softirqs last enabled at (1522): [] handle_softirqs+0x50c/0x770 [ 43.475070] softirqs last disabled at (1505): [] __irq_exit_rcu+0xc4/0x100 [ 43.476347] ---[ end trace 0000000000000000 ]--- Warning: Permanently added '[localhost]:37997' (ECDSA) to the list of known hosts. 2025/11/17 17:50:53 fuzzer started 2025/11/17 17:50:53 dialing manager at localhost:37895 2025/11/17 17:50:53 checking machine... 2025/11/17 17:50:53 checking revisions... [ 44.362533] kmemleak: Automatic memory scanning thread ended 2025/11/17 17:50:53 testing simple program... [ 44.452914] cgroup: Unknown subsys name 'net' [ 44.531697] cgroup: Unknown subsys name 'cpuset' [ 44.546233] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program VM DIAGNOSIS: 17:50:52 Registers: info registers vcpu 0 RAX=0000000000000005 RBX=ffff88801618b780 RCX=0000000000000001 RDX=0000000000000005 RSI=0000000000000000 RDI=ffffffff85e1ffe0 RBP=ffff88801618c1d8 RSP=ffff88806ce088d8 R8 =0000000000000000 R9 =0000000000000005 R10=0000000000000001 R11=0000000000000000 R12=ffff88801618c228 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 00007f74674b6900 00000000 00000000 GS =0000 ffff8880e538f000 00000000 00000000 LDT=0000 fffffe1600000000 00000000 00000000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007f7467a6b650 CR3=000000000e163000 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=000000000000000000000000000000ff XMM02=000000000000000000000000000000ff XMM03=5320444f4854454d5f54505952434e45 XMM04=40404040404040404040404040404040 XMM05=5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a5a XMM06=20202020202020202020202020202020 XMM07=00000000000000000000000000000000 XMM08=ffbc64ffffbc44ffffbc34ffffbc9f00 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=ffffffff86ab82ee RBX=0000000000000002 RCX=ffffffff81b2a133 RDX=0000000000000000 RSI=ffffffff86ab82dc RDI=ffffffff86725b1c RBP=ffffffff86725b2c RSP=ffff88806cf089d0 R8 =ffffffff86ab82dc R9 =0000000000000000 R10=000000000003c9ed R11=00000000000255da R12=ffffffff86725b28 R13=ffffffff86725b1c R14=0000000000000003 R15=dffffc0000000000 RIP=ffffffff8135dae8 RFL=00000282 [--S----] 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 00007f93bdad7900 00000000 00000000 GS =0000 ffff8880e548f000 00000000 00000000 LDT=0000 fffffe4300000000 00000000 00000000 TR =0040 fffffe000004a000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000048000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007f93bd1ee250 CR3=0000000009c3d000 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=ffffffffffffffffffffffffffffffff XMM01=30306234386136303638616663356134 XMM02=38303062343861363036386166633561 XMM03=2f6c616e72756f6a2f676f6c2f6e7572 XMM04=ce63f5f2abdbacc400000000000ae988 XMM05=5430a839b6f38cf10000000000320850 XMM06=090f1556b20111b3000000000031f708 XMM07=00000000000000000000000000000000 XMM08=415453454d49545f454d49544c414552 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000