Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 39.010502] ------------[ cut here ]------------ [ 39.011397] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code! [ 39.014066] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#0: sshd/236 [ 39.015577] Modules linked in: [ 39.016203] CPU: 0 UID: 104 PID: 236 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251118 #1 PREEMPT(voluntary) [ 39.018216] Tainted: [W]=WARN [ 39.018782] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 39.020269] RIP: 0010:vmalloc_fix_flags+0x91/0xd0 [ 39.021209] 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 [ 39.024411] RSP: 0018:ffff88801731fbc0 EFLAGS: 00010286 [ 39.025420] RAX: 0000000000000000 RBX: ffffed1002e63f78 RCX: ffffffff813a4050 [ 39.026693] RDX: ffff88800f30d340 RSI: ffffffff813a405e RDI: 0000000000000001 [ 39.027973] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed1002e63f2f [ 39.029276] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0 [ 39.030542] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff88801731fdf8 [ 39.031842] FS: 00007feb8bfc8900(0000) GS:ffff8880e538f000(0000) knlGS:0000000000000000 [ 39.033279] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.034352] CR2: 00007ffc19edeef7 CR3: 000000000cc12000 CR4: 0000000000350ef0 [ 39.035635] Call Trace: [ 39.036127] [ 39.036537] ? __pfx_vmalloc_fix_flags+0x10/0x10 [ 39.037452] ? __create_object+0x59/0x80 [ 39.038228] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 39.039201] __vmalloc_noprof+0x59/0x60 [ 39.039921] bpf_prog_alloc_no_stats+0x55/0x470 [ 39.040802] ? __pfx_seccomp_check_filter+0x10/0x10 [ 39.041740] bpf_prog_alloc+0x39/0x200 [ 39.042480] ? __pfx_seccomp_check_filter+0x10/0x10 [ 39.043414] bpf_prog_create_from_user+0xb2/0x2f0 [ 39.044309] do_seccomp+0x349/0x25e0 [ 39.045033] ? find_held_lock+0x2b/0x80 [ 39.045753] ? do_prlimit+0x310/0x610 [ 39.046494] ? __pfx_do_seccomp+0x10/0x10 [ 39.047273] ? do_raw_spin_unlock+0x53/0x220 [ 39.048109] ? _raw_spin_unlock+0x1e/0x40 [ 39.048856] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 39.049820] ? static_key_count+0x60/0x80 [ 39.050619] prctl_set_seccomp+0x4e/0x70 [ 39.051386] __do_sys_prctl+0xe6c/0x1d70 [ 39.052162] ? __pfx___do_sys_prctl+0x10/0x10 [ 39.053053] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0 [ 39.054039] ? irqentry_exit+0xf3/0x650 [ 39.054755] do_syscall_64+0xbf/0x430 [ 39.055499] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 39.056462] RIP: 0033:0x7feb8c4ba5cd [ 39.057176] 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 [ 39.060344] RSP: 002b:00007ffc19eddb20 EFLAGS: 00000246 ORIG_RAX: 000000000000009d [ 39.061738] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007feb8c4ba5cd [ 39.063038] RDX: 00005625d8ba4e00 RSI: 0000000000000002 RDI: 0000000000000016 [ 39.064344] RBP: 00007ffc19eddb80 R08: 0000000000000000 R09: 00007ffc19edd220 [ 39.065581] R10: 0000000000000000 R11: 0000000000000246 R12: 00005625f38ee2b0 [ 39.066647] R13: 00007ffc19eddfb0 R14: 00005625f38f0d20 R15: 00005625f39028d0 [ 39.067726] [ 39.068113] irq event stamp: 1793 [ 39.068627] hardirqs last enabled at (1801): [] __up_console_sem+0x78/0x80 [ 39.069905] hardirqs last disabled at (1810): [] __up_console_sem+0x5d/0x80 [ 39.071191] softirqs last enabled at (1770): [] handle_softirqs+0x50c/0x770 [ 39.072474] softirqs last disabled at (1765): [] __irq_exit_rcu+0xc4/0x100 [ 39.073738] ---[ end trace 0000000000000000 ]--- [ 41.826796] ------------[ cut here ]------------ [ 41.827833] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code! [ 41.830029] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#1: sshd/244 [ 41.831589] Modules linked in: [ 41.832279] CPU: 1 UID: 104 PID: 244 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251118 #1 PREEMPT(voluntary) [ 41.834453] Tainted: [W]=WARN [ 41.835347] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 41.837050] RIP: 0010:vmalloc_fix_flags+0x91/0xd0 [ 41.838038] 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 [ 41.841484] RSP: 0018:ffff888016997bc0 EFLAGS: 00010286 [ 41.842549] RAX: 0000000000000000 RBX: ffffed1002d32f78 RCX: ffffffff813a4050 [ 41.843957] RDX: ffff888015478000 RSI: ffffffff813a405e RDI: 0000000000000001 [ 41.845371] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed1002d32f2f [ 41.846765] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0 [ 41.848155] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff888016997df8 [ 41.849552] FS: 00007f5b25e25900(0000) GS:ffff8880e548f000(0000) knlGS:0000000000000000 [ 41.851101] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.852241] CR2: 00007f5b26317580 CR3: 000000001f594000 CR4: 0000000000350ef0 [ 41.853664] Call Trace: [ 41.854233] [ 41.854676] ? __pfx_vmalloc_fix_flags+0x10/0x10 [ 41.855642] ? __create_object+0x59/0x80 [ 41.856487] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 41.857548] __vmalloc_noprof+0x59/0x60 [ 41.858375] bpf_prog_alloc_no_stats+0x55/0x470 [ 41.859331] ? __pfx_seccomp_check_filter+0x10/0x10 [ 41.860340] bpf_prog_alloc+0x39/0x200 [ 41.861162] ? __pfx_seccomp_check_filter+0x10/0x10 [ 41.862175] bpf_prog_create_from_user+0xb2/0x2f0 [ 41.863157] do_seccomp+0x349/0x25e0 [ 41.863878] ? __pfx_css_rstat_updated+0x10/0x10 [ 41.864867] ? __pfx_do_seccomp+0x10/0x10 [ 41.865712] ? find_held_lock+0x2b/0x80 [ 41.866529] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 41.867584] ? static_key_count+0x60/0x80 [ 41.868454] prctl_set_seccomp+0x4e/0x70 [ 41.869306] __do_sys_prctl+0xe6c/0x1d70 [ 41.870159] ? __pfx___do_sys_prctl+0x10/0x10 [ 41.871089] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 41.872121] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0 [ 41.873194] ? irqentry_exit+0xf3/0x650 [ 41.874028] do_syscall_64+0xbf/0x430 [ 41.874776] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 41.875782] RIP: 0033:0x7f5b263175cd [ 41.876560] 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 [ 41.879920] RSP: 002b:00007ffe12e01350 EFLAGS: 00000246 ORIG_RAX: 000000000000009d [ 41.881423] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5b263175cd [ 41.882780] RDX: 0000560860a5de00 RSI: 0000000000000002 RDI: 0000000000000016 [ 41.884144] RBP: 00007ffe12e013b0 R08: 0000000000000000 R09: 00007ffe12e00a50 [ 41.885531] R10: 0000000000000000 R11: 0000000000000246 R12: 00005608660bcad0 [ 41.886703] R13: 00007ffe12e017e0 R14: 00005608660bdbc0 R15: 00005608660ce780 [ 41.887855] [ 41.888283] irq event stamp: 1791 [ 41.888823] hardirqs last enabled at (1799): [] __up_console_sem+0x78/0x80 [ 41.890178] hardirqs last disabled at (1808): [] __up_console_sem+0x5d/0x80 [ 41.891521] softirqs last enabled at (1710): [] handle_softirqs+0x50c/0x770 [ 41.892912] softirqs last disabled at (1701): [] __irq_exit_rcu+0xc4/0x100 [ 41.894271] ---[ end trace 0000000000000000 ]--- [ 42.583828] ------------[ cut here ]------------ [ 42.584766] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code! [ 42.586786] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#0: sshd/252 [ 42.588268] Modules linked in: [ 42.588873] CPU: 0 UID: 104 PID: 252 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251118 #1 PREEMPT(voluntary) [ 42.590913] Tainted: [W]=WARN [ 42.591501] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 42.593000] RIP: 0010:vmalloc_fix_flags+0x91/0xd0 [ 42.593881] 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 [ 42.597113] RSP: 0018:ffff888016e87bc0 EFLAGS: 00010286 [ 42.598089] RAX: 0000000000000000 RBX: ffffed1002dd0f78 RCX: ffffffff813a4050 [ 42.599366] RDX: ffff888016fed340 RSI: ffffffff813a405e RDI: 0000000000000001 [ 42.600649] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed1002dd0f2f [ 42.601973] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0 [ 42.603266] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff888016e87df8 [ 42.604562] FS: 00007f317c108900(0000) GS:ffff8880e538f000(0000) knlGS:0000000000000000 [ 42.606018] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.607084] CR2: 00007fff00933ef7 CR3: 000000001f731000 CR4: 0000000000350ef0 [ 42.608390] Call Trace: [ 42.608866] [ 42.609323] ? __pfx_vmalloc_fix_flags+0x10/0x10 [ 42.610232] ? __create_object+0x59/0x80 [ 42.611028] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 42.612013] __vmalloc_noprof+0x59/0x60 [ 42.612730] bpf_prog_alloc_no_stats+0x55/0x470 [ 42.613645] ? __pfx_seccomp_check_filter+0x10/0x10 [ 42.614599] bpf_prog_alloc+0x39/0x200 [ 42.615351] ? __pfx_seccomp_check_filter+0x10/0x10 [ 42.616303] bpf_prog_create_from_user+0xb2/0x2f0 [ 42.617224] do_seccomp+0x349/0x25e0 [ 42.617897] ? find_held_lock+0x2b/0x80 [ 42.618662] ? do_prlimit+0x310/0x610 [ 42.619418] ? __pfx_do_seccomp+0x10/0x10 [ 42.620216] ? do_raw_spin_unlock+0x53/0x220 [ 42.621075] ? _raw_spin_unlock+0x1e/0x40 [ 42.621817] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 42.622798] ? static_key_count+0x60/0x80 [ 42.623603] prctl_set_seccomp+0x4e/0x70 [ 42.624378] __do_sys_prctl+0xe6c/0x1d70 [ 42.625189] ? __pfx___do_sys_prctl+0x10/0x10 [ 42.626076] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0 [ 42.627056] ? irqentry_exit+0xf3/0x650 [ 42.627775] do_syscall_64+0xbf/0x430 [ 42.628514] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 42.629497] RIP: 0033:0x7f317c5fa5cd [ 42.630200] 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 [ 42.633403] RSP: 002b:00007fff00932bc0 EFLAGS: 00000246 ORIG_RAX: 000000000000009d [ 42.634780] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f317c5fa5cd [ 42.636066] RDX: 000055ad0062fe00 RSI: 0000000000000002 RDI: 0000000000000016 [ 42.637438] RBP: 00007fff00932c20 R08: 0000000000000000 R09: 00007fff009322c0 [ 42.638741] R10: 0000000000000000 R11: 0000000000000246 R12: 000055ad07f732b0 [ 42.640030] R13: 00007fff00933050 R14: 000055ad07f75d20 R15: 000055ad07f878d0 [ 42.641353] [ 42.641778] irq event stamp: 1747 [ 42.642424] hardirqs last enabled at (1757): [] __up_console_sem+0x78/0x80 [ 42.643976] hardirqs last disabled at (1766): [] __up_console_sem+0x5d/0x80 [ 42.645554] softirqs last enabled at (1706): [] handle_softirqs+0x50c/0x770 [ 42.647105] softirqs last disabled at (1693): [] __irq_exit_rcu+0xc4/0x100 [ 42.648635] ---[ end trace 0000000000000000 ]--- Warning: Permanently added '[localhost]:32850' (ECDSA) to the list of known hosts. 2025/11/18 18:46:59 fuzzer started 2025/11/18 18:47:00 dialing manager at localhost:34383 2025/11/18 18:47:00 checking machine... 2025/11/18 18:47:00 checking revisions... [ 43.517916] kmemleak: Automatic memory scanning thread ended 2025/11/18 18:47:00 testing simple program... [ 43.602175] cgroup: Unknown subsys name 'net' [ 43.666220] cgroup: Unknown subsys name 'cpuset' [ 43.682230] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program VM DIAGNOSIS: 18:46:59 Registers: info registers vcpu 0 RAX=1d12ea58828aec00 RBX=ffff888009627dc0 RCX=ffff888009627794 RDX=0000000000000001 RSI=ffffffff85e1ffe0 RDI=ffff888009612640 RBP=ffffffff85e1ffe0 RSP=ffff888009627788 R8 =ffffffff86a0ba7e R9 =ffff888009627880 R10=000000000003c9ed R11=000000000000897b R12=ffffffff8135e7a2 R13=0000000000000206 R14=ffff888009611bc0 R15=0000000000000002 RIP=ffffffff81529012 RFL=00000206 [-----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 ffff8880e538f000 00000000 00000000 LDT=0000 fffffe4f00000000 00000000 00000000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007f5b25de5008 CR3=000000000da09000 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=2039353a36343a383120383120766f4e XMM01=73732878696e755f6d6170203a5d3334 XMM02=65736f6c63206e6f6973736573203a29 XMM03=755f6d6170203a5d3334325b64687373 XMM04=69662068637573206f4e203a656c6163 XMM05=3a656c696620766e65206e65706f206f XMM06=65733a6468737328766e655f6d617020 XMM07=6b7a79732038353a36343a3831203831 XMM08=30343d7974696c696261706163202279 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000001 RBX=ffffffff8166d660 RCX=ffffffff8162e9c7 RDX=0000000000000000 RSI=0000000000000001 RDI=0000000000000000 RBP=ffff88806cf28e58 RSP=ffff88806cf08e20 R8 =0000000000000000 R9 =fffffbfff0cc9f0a R10=0000000000000001 R11=0000000000000001 R12=ffff88806cf28500 R13=ffff88806cf28580 R14=0000000000000001 R15=dffffc0000000000 RIP=ffffffff817518c8 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 fffffe6300000000 00000000 00000000 TR =0040 fffffe000004a000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000048000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007fa412d4c000 CR3=000000000dbab000 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=86e056bd33c960a24d4d964497cf255d XMM02=2c67c8bc2e329bc30000000000306b48 XMM03=fb795ef6d65770560000000000310808 XMM04=77505ce4405b2d9800000000000ae988 XMM05=42212de0ab2500370000000000321898 XMM06=3e829fc8c8edc9900000000000320938 XMM07=e042d86d42eb936e0000000000311248 XMM08=d34580f6710956300000000000306ba8 XMM09=00000000000000000000000000000000 XMM10=20200000000020202020202020200000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000