Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 46.245764] ------------[ cut here ]------------ [ 46.246473] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code! [ 46.248018] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#1: sshd/236 [ 46.249135] Modules linked in: [ 46.249617] CPU: 1 UID: 104 PID: 236 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251118 #1 PREEMPT(voluntary) [ 46.251349] Tainted: [W]=WARN [ 46.251883] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 46.253013] RIP: 0010:vmalloc_fix_flags+0x91/0xd0 [ 46.253716] 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 [ 46.256166] RSP: 0018:ffff88801c06fbc0 EFLAGS: 00010286 [ 46.256930] RAX: 0000000000000000 RBX: ffffed100380df78 RCX: ffffffff813a4050 [ 46.257916] RDX: ffff88800f475340 RSI: ffffffff813a405e RDI: 0000000000000001 [ 46.258889] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed100380df2f [ 46.259886] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0 [ 46.260880] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff88801c06fdf8 [ 46.261875] FS: 00007fbb05295900(0000) GS:ffff8880e548f000(0000) knlGS:0000000000000000 [ 46.262979] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 46.263813] CR2: 00007fbb05787580 CR3: 000000000bf50000 CR4: 0000000000350ef0 [ 46.264809] Call Trace: [ 46.265164] [ 46.265505] ? __pfx_vmalloc_fix_flags+0x10/0x10 [ 46.266162] ? __create_object+0x59/0x80 [ 46.266768] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 46.267505] __vmalloc_noprof+0x59/0x60 [ 46.268063] bpf_prog_alloc_no_stats+0x55/0x470 [ 46.268740] ? __pfx_seccomp_check_filter+0x10/0x10 [ 46.269447] bpf_prog_alloc+0x39/0x200 [ 46.269988] ? __pfx_seccomp_check_filter+0x10/0x10 [ 46.270702] bpf_prog_create_from_user+0xb2/0x2f0 [ 46.271401] do_seccomp+0x349/0x25e0 [ 46.271932] ? __pfx_css_rstat_updated+0x10/0x10 [ 46.272626] ? __pfx_do_seccomp+0x10/0x10 [ 46.273192] ? find_held_lock+0x2b/0x80 [ 46.273779] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 46.274538] ? static_key_count+0x60/0x80 [ 46.275115] prctl_set_seccomp+0x4e/0x70 [ 46.275711] __do_sys_prctl+0xe6c/0x1d70 [ 46.276300] ? __pfx___do_sys_prctl+0x10/0x10 [ 46.276958] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 46.277698] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0 [ 46.278439] ? irqentry_exit+0xf3/0x650 [ 46.278985] do_syscall_64+0xbf/0x430 [ 46.279553] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 46.280260] RIP: 0033:0x7fbb057875cd [ 46.280806] 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 [ 46.283235] RSP: 002b:00007ffd0eb69f40 EFLAGS: 00000246 ORIG_RAX: 000000000000009d [ 46.284301] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fbb057875cd [ 46.285286] RDX: 0000559daba75e00 RSI: 0000000000000002 RDI: 0000000000000016 [ 46.286266] RBP: 00007ffd0eb69fa0 R08: 0000000000000000 R09: 00007ffd0eb69640 [ 46.287244] R10: 0000000000000000 R11: 0000000000000246 R12: 0000559dc0f32ad0 [ 46.288252] R13: 00007ffd0eb6a3d0 R14: 0000559dc0f33bc0 R15: 0000559dc0f44780 [ 46.289248] [ 46.289601] irq event stamp: 1775 [ 46.290071] hardirqs last enabled at (1783): [] __up_console_sem+0x78/0x80 [ 46.291233] hardirqs last disabled at (1792): [] __up_console_sem+0x5d/0x80 [ 46.292409] softirqs last enabled at (1316): [] handle_softirqs+0x50c/0x770 [ 46.293600] softirqs last disabled at (1295): [] __irq_exit_rcu+0xc4/0x100 [ 46.294770] ---[ end trace 0000000000000000 ]--- [ 49.027689] ------------[ cut here ]------------ [ 49.028624] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code! [ 49.030604] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#0: sshd/244 [ 49.032070] Modules linked in: [ 49.032702] CPU: 0 UID: 104 PID: 244 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251118 #1 PREEMPT(voluntary) [ 49.034765] Tainted: [W]=WARN [ 49.035328] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 49.036804] RIP: 0010:vmalloc_fix_flags+0x91/0xd0 [ 49.037720] 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 [ 49.040937] RSP: 0018:ffff88800b297bc0 EFLAGS: 00010286 [ 49.041934] RAX: 0000000000000000 RBX: ffffed1001652f78 RCX: ffffffff813a4050 [ 49.043229] RDX: ffff88801733d340 RSI: ffffffff813a405e RDI: 0000000000000001 [ 49.044527] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed1001652f2f [ 49.045813] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0 [ 49.047123] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff88800b297df8 [ 49.048412] FS: 00007f5835313900(0000) GS:ffff8880e538f000(0000) knlGS:0000000000000000 [ 49.049880] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.050948] CR2: 00007f5835805580 CR3: 000000000e76c000 CR4: 0000000000350ef0 [ 49.052237] Call Trace: [ 49.052740] [ 49.053148] ? __pfx_vmalloc_fix_flags+0x10/0x10 [ 49.054064] ? __create_object+0x59/0x80 [ 49.054875] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 49.055849] __vmalloc_noprof+0x59/0x60 [ 49.056611] bpf_prog_alloc_no_stats+0x55/0x470 [ 49.057492] ? __pfx_seccomp_check_filter+0x10/0x10 [ 49.058445] bpf_prog_alloc+0x39/0x200 [ 49.059142] ? __pfx_seccomp_check_filter+0x10/0x10 [ 49.060065] bpf_prog_create_from_user+0xb2/0x2f0 [ 49.060981] do_seccomp+0x349/0x25e0 [ 49.061698] ? __pfx_css_rstat_updated+0x10/0x10 [ 49.062619] ? __pfx_do_seccomp+0x10/0x10 [ 49.063403] ? find_held_lock+0x2b/0x80 [ 49.064124] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 49.065103] ? static_key_count+0x60/0x80 [ 49.065919] prctl_set_seccomp+0x4e/0x70 [ 49.066695] __do_sys_prctl+0xe6c/0x1d70 [ 49.067480] ? __pfx___do_sys_prctl+0x10/0x10 [ 49.068298] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 49.069264] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0 [ 49.070249] ? irqentry_exit+0xf3/0x650 [ 49.071004] do_syscall_64+0xbf/0x430 [ 49.071738] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 49.072696] RIP: 0033:0x7f58358055cd [ 49.073360] 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 [ 49.076573] RSP: 002b:00007ffe7df642a0 EFLAGS: 00000246 ORIG_RAX: 000000000000009d [ 49.077970] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f58358055cd [ 49.079259] RDX: 000055b8efefae00 RSI: 0000000000000002 RDI: 0000000000000016 [ 49.080546] RBP: 00007ffe7df64300 R08: 0000000000000000 R09: 00007ffe7df639a0 [ 49.081855] R10: 0000000000000000 R11: 0000000000000246 R12: 000055b929334ad0 [ 49.083142] R13: 00007ffe7df64730 R14: 000055b929335bc0 R15: 000055b929346780 [ 49.084461] [ 49.084893] irq event stamp: 1803 [ 49.085546] hardirqs last enabled at (1813): [] __up_console_sem+0x78/0x80 [ 49.087102] hardirqs last disabled at (1822): [] __up_console_sem+0x5d/0x80 [ 49.088641] softirqs last enabled at (1706): [] handle_softirqs+0x50c/0x770 [ 49.090200] softirqs last disabled at (1701): [] __irq_exit_rcu+0xc4/0x100 [ 49.091728] ---[ end trace 0000000000000000 ]--- [ 49.728260] ------------[ cut here ]------------ [ 49.729171] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code! [ 49.731163] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#1: sshd/251 [ 49.732608] Modules linked in: [ 49.733232] CPU: 1 UID: 104 PID: 251 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251118 #1 PREEMPT(voluntary) [ 49.735320] Tainted: [W]=WARN [ 49.735927] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 49.737700] RIP: 0010:vmalloc_fix_flags+0x91/0xd0 [ 49.738730] 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 [ 49.742065] RSP: 0018:ffff88801b18fbc0 EFLAGS: 00010286 [ 49.743093] RAX: 0000000000000000 RBX: ffffed1003631f78 RCX: ffffffff813a4050 [ 49.744412] RDX: ffff888016c71bc0 RSI: ffffffff813a405e RDI: 0000000000000001 [ 49.745758] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed1003631f2f [ 49.747078] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0 [ 49.748428] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff88801b18fdf8 [ 49.749745] FS: 00007f12b1388900(0000) GS:ffff8880e548f000(0000) knlGS:0000000000000000 [ 49.751281] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.752384] CR2: 00007ffdfebd5ef7 CR3: 000000000f28b000 CR4: 0000000000350ef0 [ 49.753738] Call Trace: [ 49.754222] [ 49.754684] ? __pfx_vmalloc_fix_flags+0x10/0x10 [ 49.755611] ? __create_object+0x59/0x80 [ 49.756421] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 49.757408] __vmalloc_noprof+0x59/0x60 [ 49.758168] bpf_prog_alloc_no_stats+0x55/0x470 [ 49.759085] ? __pfx_seccomp_check_filter+0x10/0x10 [ 49.760027] bpf_prog_alloc+0x39/0x200 [ 49.760784] ? __pfx_seccomp_check_filter+0x10/0x10 [ 49.761727] bpf_prog_create_from_user+0xb2/0x2f0 [ 49.762683] do_seccomp+0x349/0x25e0 [ 49.763406] ? find_held_lock+0x2b/0x80 [ 49.764173] ? do_prlimit+0x310/0x610 [ 49.764981] ? __pfx_do_seccomp+0x10/0x10 [ 49.765782] ? do_raw_spin_unlock+0x53/0x220 [ 49.766655] ? _raw_spin_unlock+0x1e/0x40 [ 49.767448] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 49.768457] ? static_key_count+0x60/0x80 [ 49.769223] prctl_set_seccomp+0x4e/0x70 [ 49.770041] __do_sys_prctl+0xe6c/0x1d70 [ 49.770829] ? __pfx___do_sys_prctl+0x10/0x10 [ 49.771714] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0 [ 49.772713] ? irqentry_exit+0xf3/0x650 [ 49.773487] do_syscall_64+0xbf/0x430 [ 49.774230] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 49.775227] RIP: 0033:0x7f12b187a5cd [ 49.775935] 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 [ 49.779288] RSP: 002b:00007ffdfebd4000 EFLAGS: 00000246 ORIG_RAX: 000000000000009d [ 49.780695] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f12b187a5cd [ 49.782064] RDX: 0000557b146aee00 RSI: 0000000000000002 RDI: 0000000000000016 [ 49.783386] RBP: 00007ffdfebd4060 R08: 0000000000000000 R09: 00007ffdfebd3700 [ 49.784738] R10: 0000000000000000 R11: 0000000000000246 R12: 0000557b157692b0 [ 49.786066] R13: 00007ffdfebd4490 R14: 0000557b1576bd20 R15: 0000557b1577d8d0 [ 49.787382] [ 49.787743] irq event stamp: 1811 [ 49.788254] hardirqs last enabled at (1819): [] __up_console_sem+0x78/0x80 [ 49.789561] hardirqs last disabled at (1828): [] __up_console_sem+0x5d/0x80 [ 49.790859] softirqs last enabled at (1778): [] handle_softirqs+0x50c/0x770 [ 49.792203] softirqs last disabled at (1773): [] __irq_exit_rcu+0xc4/0x100 [ 49.793499] ---[ end trace 0000000000000000 ]--- Warning: Permanently added '[localhost]:32901' (ECDSA) to the list of known hosts. 2025/11/18 21:35:27 fuzzer started 2025/11/18 21:35:27 dialing manager at localhost:34383 2025/11/18 21:35:27 checking machine... 2025/11/18 21:35:27 checking revisions... [ 50.617869] kmemleak: Automatic memory scanning thread ended 2025/11/18 21:35:27 testing simple program... [ 50.698187] cgroup: Unknown subsys name 'net' [ 50.754068] cgroup: Unknown subsys name 'cpuset' [ 50.769629] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program VM DIAGNOSIS: 21:35:27 Registers: info registers vcpu 0 RAX=0000000000045899 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 fffffe2400000000 00000000 00000000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007fff8ae5c4c8 CR3=000000000d840000 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=0b51dcefc39d679b654778edf107bd6c XMM02=0000000000303438eff9b2d0a8fce9cb XMM03=00000000003035082c67c8bc2e329bc3 XMM04=bae685b9a669684d00000000000ae988 XMM05=0394861f14684e59000000000031eef8 XMM06=13dc1b67328455440000000000318b38 XMM07=e042d86d42eb936e0000000000310088 XMM08=82d467e03a42c23c0000000000303508 XMM09=00000000000000000000000000000000 XMM10=20200000000020202020202020200000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=ffffffff81b8cb1f RBX=ffffffff81619130 RCX=ffff88801623773c RDX=1ffff11002c46f08 RSI=ffffffff81b8cb1f RDI=ffff8880162378b0 RBP=ffff888016237880 RSP=ffff8880162377e0 R8 =0000000000000001 R9 =ffff888016237828 R10=000000000003c9ed R11=00000000000273a5 R12=ffff8880162378b0 R13=0000000000000000 R14=ffff888017338000 R15=ffff88801c84dd40 RIP=ffffffff81619130 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 00007f5835313900 00000000 00000000 GS =0000 ffff8880e548f000 00000000 00000000 LDT=0000 fffffe0b00000000 00000000 00000000 TR =0040 fffffe000004a000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000048000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007ffe7df5e000 CR3=000000000be64000 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=6720646572637465733a4d41503d706f 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