Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 39.007679] ------------[ cut here ]------------ [ 39.008613] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code! [ 39.011146] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#0: sshd/231 [ 39.012948] Modules linked in: [ 39.013555] CPU: 0 UID: 104 PID: 231 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251118 #1 PREEMPT(voluntary) [ 39.015549] Tainted: [W]=WARN [ 39.016149] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 39.017614] RIP: 0010:vmalloc_fix_flags+0x91/0xd0 [ 39.018531] 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 [ 39.021724] RSP: 0018:ffff88801792fbc0 EFLAGS: 00010286 [ 39.022717] RAX: 0000000000000000 RBX: ffffed1002f25f78 RCX: ffffffff813a4050 [ 39.024012] RDX: ffff88800f35d340 RSI: ffffffff813a405e RDI: 0000000000000001 [ 39.025323] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed1002f25f2f [ 39.026608] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0 [ 39.027896] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff88801792fdf8 [ 39.029178] FS: 00007f05104f1900(0000) GS:ffff8880e538f000(0000) knlGS:0000000000000000 [ 39.030624] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.031696] CR2: 00007f05109e3580 CR3: 000000001ba95000 CR4: 0000000000350ef0 [ 39.032981] Call Trace: [ 39.033444] [ 39.033855] ? __pfx_vmalloc_fix_flags+0x10/0x10 [ 39.034770] ? __create_object+0x59/0x80 [ 39.035558] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 39.036542] __vmalloc_noprof+0x59/0x60 [ 39.037296] bpf_prog_alloc_no_stats+0x55/0x470 [ 39.038165] ? __pfx_seccomp_check_filter+0x10/0x10 [ 39.039093] bpf_prog_alloc+0x39/0x200 [ 39.039783] ? __pfx_seccomp_check_filter+0x10/0x10 [ 39.040697] bpf_prog_create_from_user+0xb2/0x2f0 [ 39.041592] do_seccomp+0x349/0x25e0 [ 39.042297] ? __pfx_css_rstat_updated+0x10/0x10 [ 39.043204] ? __pfx_do_seccomp+0x10/0x10 [ 39.043977] ? find_held_lock+0x2b/0x80 [ 39.044677] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 39.045623] ? static_key_count+0x60/0x80 [ 39.046413] prctl_set_seccomp+0x4e/0x70 [ 39.047217] __do_sys_prctl+0xe6c/0x1d70 [ 39.047985] ? __pfx___do_sys_prctl+0x10/0x10 [ 39.048800] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 39.049742] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0 [ 39.050718] ? irqentry_exit+0xf3/0x650 [ 39.051518] do_syscall_64+0xbf/0x430 [ 39.052341] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 39.053412] RIP: 0033:0x7f05109e35cd [ 39.054215] 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 [ 39.057855] RSP: 002b:00007ffc20031f10 EFLAGS: 00000246 ORIG_RAX: 000000000000009d [ 39.059442] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f05109e35cd [ 39.060950] RDX: 000055dbff680e00 RSI: 0000000000000002 RDI: 0000000000000016 [ 39.062459] RBP: 00007ffc20031f70 R08: 0000000000000000 R09: 00007ffc20031610 [ 39.063931] R10: 0000000000000000 R11: 0000000000000246 R12: 000055dc2911ead0 [ 39.065416] R13: 00007ffc200323a0 R14: 000055dc2911fbc0 R15: 000055dc29130780 [ 39.066912] [ 39.067436] irq event stamp: 1809 [ 39.068193] hardirqs last enabled at (1819): [] __up_console_sem+0x78/0x80 [ 39.069888] hardirqs last disabled at (1828): [] __up_console_sem+0x5d/0x80 [ 39.071546] softirqs last enabled at (1720): [] handle_softirqs+0x50c/0x770 [ 39.072840] softirqs last disabled at (1715): [] __irq_exit_rcu+0xc4/0x100 [ 39.074113] ---[ end trace 0000000000000000 ]--- [ 42.088736] ------------[ cut here ]------------ [ 42.089542] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code! [ 42.091334] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#0: sshd/241 [ 42.092603] Modules linked in: [ 42.093141] CPU: 0 UID: 104 PID: 241 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251118 #1 PREEMPT(voluntary) [ 42.094889] Tainted: [W]=WARN [ 42.095370] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 42.096638] RIP: 0010:vmalloc_fix_flags+0x91/0xd0 [ 42.097430] 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 [ 42.100190] RSP: 0018:ffff888019c9fbc0 EFLAGS: 00010286 [ 42.101025] RAX: 0000000000000000 RBX: ffffed1003393f78 RCX: ffffffff813a4050 [ 42.102130] RDX: ffff88800f565340 RSI: ffffffff813a405e RDI: 0000000000000001 [ 42.103257] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed1003393f2f [ 42.104358] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000400dc0 [ 42.105476] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff888019c9fdf8 [ 42.106576] FS: 00007f1c9c884900(0000) GS:ffff8880e538f000(0000) knlGS:0000000000000000 [ 42.107835] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.108760] CR2: 00007f1c9cd76580 CR3: 000000001d090000 CR4: 0000000000350ef0 [ 42.109884] Call Trace: [ 42.110293] [ 42.110650] ? __pfx_vmalloc_fix_flags+0x10/0x10 [ 42.111446] ? __create_object+0x59/0x80 [ 42.112120] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 42.112960] __vmalloc_noprof+0x59/0x60 [ 42.113581] bpf_prog_alloc_no_stats+0x55/0x470 [ 42.114340] ? __pfx_seccomp_check_filter+0x10/0x10 [ 42.115168] bpf_prog_alloc+0x39/0x200 [ 42.115776] ? __pfx_seccomp_check_filter+0x10/0x10 [ 42.116581] bpf_prog_create_from_user+0xb2/0x2f0 [ 42.117597] do_seccomp+0x349/0x25e0 [ 42.118223] ? __pfx_css_rstat_updated+0x10/0x10 [ 42.119014] ? __pfx_do_seccomp+0x10/0x10 [ 42.119660] ? find_held_lock+0x2b/0x80 [ 42.120309] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 42.121135] ? static_key_count+0x60/0x80 [ 42.121794] prctl_set_seccomp+0x4e/0x70 [ 42.122458] __do_sys_prctl+0xe6c/0x1d70 [ 42.123155] ? __pfx___do_sys_prctl+0x10/0x10 [ 42.123856] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 42.124684] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0 [ 42.125514] ? irqentry_exit+0xf3/0x650 [ 42.126173] do_syscall_64+0xbf/0x430 [ 42.126789] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 42.127668] RIP: 0033:0x7f1c9cd765cd [ 42.128420] 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 [ 42.131200] RSP: 002b:00007fff395351a0 EFLAGS: 00000246 ORIG_RAX: 000000000000009d [ 42.132377] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1c9cd765cd [ 42.133500] RDX: 000056542f6b3e00 RSI: 0000000000000002 RDI: 0000000000000016 [ 42.134607] RBP: 00007fff39535200 R08: 0000000000000000 R09: 00007fff395348a0 [ 42.135728] R10: 0000000000000000 R11: 0000000000000246 R12: 0000565451932ad0 [ 42.136847] R13: 00007fff39535630 R14: 0000565451933bc0 R15: 0000565451944780 [ 42.138130] [ 42.138528] irq event stamp: 1681 [ 42.139198] hardirqs last enabled at (1691): [] __up_console_sem+0x78/0x80 [ 42.140519] hardirqs last disabled at (1700): [] __up_console_sem+0x5d/0x80 [ 42.141842] softirqs last enabled at (1590): [] handle_softirqs+0x50c/0x770 [ 42.143208] softirqs last disabled at (1585): [] __irq_exit_rcu+0xc4/0x100 [ 42.144519] ---[ end trace 0000000000000000 ]--- [ 43.292735] ------------[ cut here ]------------ [ 43.293666] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code! [ 43.295682] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#0: sshd/250 [ 43.297116] Modules linked in: [ 43.297720] CPU: 0 UID: 104 PID: 250 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251118 #1 PREEMPT(voluntary) [ 43.299762] Tainted: [W]=WARN [ 43.300370] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 43.301883] RIP: 0010:vmalloc_fix_flags+0x91/0xd0 [ 43.302780] 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 [ 43.306019] RSP: 0018:ffff88801a657bc0 EFLAGS: 00010286 [ 43.307018] RAX: 0000000000000000 RBX: ffffed10034caf78 RCX: ffffffff813a4050 [ 43.308315] RDX: ffff888014b39bc0 RSI: ffffffff813a405e RDI: 0000000000000001 [ 43.309579] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed10034caf2f [ 43.310844] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000400dc0 [ 43.312123] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff88801a657df8 [ 43.313389] FS: 00007f067e0b0900(0000) GS:ffff8880e538f000(0000) knlGS:0000000000000000 [ 43.314817] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.315885] CR2: 00007ffe674a8ef8 CR3: 000000001fd48000 CR4: 0000000000350ef0 [ 43.317149] Call Trace: [ 43.317602] [ 43.318050] ? __pfx_vmalloc_fix_flags+0x10/0x10 [ 43.318939] ? __create_object+0x59/0x80 [ 43.319667] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 43.320610] __vmalloc_noprof+0x59/0x60 [ 43.321340] bpf_prog_alloc_no_stats+0x55/0x470 [ 43.322189] ? __pfx_seccomp_check_filter+0x10/0x10 [ 43.323122] bpf_prog_alloc+0x39/0x200 [ 43.323805] ? __pfx_seccomp_check_filter+0x10/0x10 [ 43.324710] bpf_prog_create_from_user+0xb2/0x2f0 [ 43.325589] do_seccomp+0x349/0x25e0 [ 43.326297] ? find_held_lock+0x2b/0x80 [ 43.327057] ? do_prlimit+0x310/0x610 [ 43.327749] ? __pfx_do_seccomp+0x10/0x10 [ 43.328520] ? do_raw_spin_unlock+0x53/0x220 [ 43.329335] ? _raw_spin_unlock+0x1e/0x40 [ 43.330108] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 43.331060] ? static_key_count+0x60/0x80 [ 43.331801] prctl_set_seccomp+0x4e/0x70 [ 43.332564] __do_sys_prctl+0xe6c/0x1d70 [ 43.333335] ? __pfx___do_sys_prctl+0x10/0x10 [ 43.334177] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0 [ 43.335179] ? irqentry_exit+0xf3/0x650 [ 43.335940] do_syscall_64+0xbf/0x430 [ 43.336626] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 43.337562] RIP: 0033:0x7f067e5a25cd [ 43.338264] 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 [ 43.341390] RSP: 002b:00007ffe674a6a40 EFLAGS: 00000246 ORIG_RAX: 000000000000009d [ 43.342742] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f067e5a25cd [ 43.344015] RDX: 000055df1b44ee00 RSI: 0000000000000002 RDI: 0000000000000016 [ 43.345289] RBP: 00007ffe674a6aa0 R08: 0000000000000000 R09: 00007ffe674a6140 [ 43.346552] R10: 0000000000000000 R11: 0000000000000246 R12: 000055df488ae240 [ 43.347830] R13: 00007ffe674a6ed0 R14: 000055df488b7380 R15: 000055df488c2540 [ 43.349114] [ 43.349530] irq event stamp: 1737 [ 43.350186] hardirqs last enabled at (1747): [] __up_console_sem+0x78/0x80 [ 43.351705] hardirqs last disabled at (1756): [] __up_console_sem+0x5d/0x80 [ 43.353199] softirqs last enabled at (1622): [] handle_softirqs+0x50c/0x770 [ 43.354731] softirqs last disabled at (1617): [] __irq_exit_rcu+0xc4/0x100 [ 43.356121] ---[ end trace 0000000000000000 ]--- Warning: Permanently added '[localhost]:52647' (ECDSA) to the list of known hosts. 2025/11/18 15:40:39 fuzzer started 2025/11/18 15:40:40 dialing manager at localhost:34383 2025/11/18 15:40:40 checking machine... 2025/11/18 15:40:40 checking revisions... [ 44.260373] kmemleak: Automatic memory scanning thread ended 2025/11/18 15:40:40 testing simple program... [ 44.344463] cgroup: Unknown subsys name 'net' [ 44.420754] cgroup: Unknown subsys name 'cpuset' [ 44.437471] cgroup: Unknown subsys name 'rlimit' executing program executing program VM DIAGNOSIS: 15:40:39 Registers: info registers vcpu 0 RAX=0000000000000001 RBX=0000000000000000 RCX=ffffffff817d9966 RDX=fffffbfff0cc9f0b RSI=0000000000000008 RDI=ffffffff8664f850 RBP=ffff888016d7f610 RSP=ffff888016d7f560 R8 =0000000000000000 R9 =fffffbfff0cc9f0a R10=ffffffff8664f857 R11=0000000000000001 R12=ffff88806ce3c2d0 R13=0000000000000200 R14=ffff888008c4b780 R15=ffffea0000272f40 RIP=ffffffff817d996e RFL=00000047 [---Z-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 00007f1c9c884900 00000000 00000000 GS =0000 ffff8880e538f000 00000000 00000000 LDT=0000 fffffe5100000000 00000000 00000000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007f1c9ce3b618 CR3=000000000b734000 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 info registers vcpu 1 RAX=0000000000000000 RBX=ffff8880096fb780 RCX=0000000000000002 RDX=0000000088596101 RSI=0000000000000000 RDI=ffffffff85e1ffe0 RBP=ffffffff85e1ffe0 RSP=ffff888009757698 R8 =0000000000000000 R9 =ffffffff87ce3608 R10=0000000000000001 R11=0000000000000000 R12=0000000000000002 R13=0000000000000000 R14=0000000000000000 R15=0000000000000002 RIP=ffffffff81526fb4 RFL=00000082 [--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 0000000000000000 00000000 00000000 GS =0000 ffff8880e548f000 00000000 00000000 LDT=0000 fffffe6a00000000 00000000 00000000 TR =0040 fffffe000004a000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000048000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007fccaf7d9018 CR3=000000000dd36000 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=d618460be4a20ea0e84430da2cd03a70 XMM02=0000000000304808eff9b2d0a8fce9cb XMM03=00000000003048d82c67c8bc2e329bc3 XMM04=c73e1e196cc8b54f00000000000ae988 XMM05=ebb826a8f93219c4000000000031f5c0 XMM06=b5decaa0170a0f34000000000031e360 XMM07=fb795ef6d6577056000000000030db48 XMM08=2c67c8bc2e329bc30000000000304878 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000