Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 39.044832] ------------[ cut here ]------------ [ 39.045811] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code! [ 39.047858] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#1: sshd/233 [ 39.049401] Modules linked in: [ 39.050038] CPU: 1 UID: 104 PID: 233 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251118 #1 PREEMPT(voluntary) [ 39.052036] Tainted: [W]=WARN [ 39.052592] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 39.055467] RIP: 0010:vmalloc_fix_flags+0x91/0xd0 [ 39.056478] 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 [ 39.059631] RSP: 0018:ffff88801661fbc0 EFLAGS: 00010286 [ 39.060625] RAX: 0000000000000000 RBX: ffffed1002cc3f78 RCX: ffffffff813a4050 [ 39.061921] RDX: ffff888019891bc0 RSI: ffffffff813a405e RDI: 0000000000000001 [ 39.063216] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed1002cc3f2f [ 39.064524] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0 [ 39.065820] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff88801661fdf8 [ 39.067122] FS: 00007fc50baae900(0000) GS:ffff8880e548f000(0000) knlGS:0000000000000000 [ 39.068581] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 39.069643] CR2: 00007ffc90e6cef8 CR3: 000000001670e000 CR4: 0000000000350ef0 [ 39.070930] Call Trace: [ 39.071391] [ 39.071813] ? __pfx_vmalloc_fix_flags+0x10/0x10 [ 39.072726] ? __create_object+0x59/0x80 [ 39.073519] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 39.074494] __vmalloc_noprof+0x59/0x60 [ 39.075269] bpf_prog_alloc_no_stats+0x55/0x470 [ 39.076161] ? __pfx_seccomp_check_filter+0x10/0x10 [ 39.077097] bpf_prog_alloc+0x39/0x200 [ 39.077784] ? __pfx_seccomp_check_filter+0x10/0x10 [ 39.078715] bpf_prog_create_from_user+0xb2/0x2f0 [ 39.079622] do_seccomp+0x349/0x25e0 [ 39.080358] ? find_held_lock+0x2b/0x80 [ 39.081128] ? do_prlimit+0x310/0x610 [ 39.081829] ? __pfx_do_seccomp+0x10/0x10 [ 39.082616] ? do_raw_spin_unlock+0x53/0x220 [ 39.083444] ? _raw_spin_unlock+0x1e/0x40 [ 39.084296] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 39.085276] ? static_key_count+0x60/0x80 [ 39.086089] prctl_set_seccomp+0x4e/0x70 [ 39.086825] __do_sys_prctl+0xe6c/0x1d70 [ 39.087620] ? __pfx___do_sys_prctl+0x10/0x10 [ 39.088504] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0 [ 39.089491] ? irqentry_exit+0xf3/0x650 [ 39.090267] do_syscall_64+0xbf/0x430 [ 39.091013] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 39.091980] RIP: 0033:0x7fc50bfa05cd [ 39.092639] 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 [ 39.095804] RSP: 002b:00007ffc90e6a7b0 EFLAGS: 00000246 ORIG_RAX: 000000000000009d [ 39.097173] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc50bfa05cd [ 39.098467] RDX: 0000556f381a7e00 RSI: 0000000000000002 RDI: 0000000000000016 [ 39.099768] RBP: 00007ffc90e6a810 R08: 0000000000000000 R09: 00007ffc90e69eb0 [ 39.100920] R10: 0000000000000000 R11: 0000000000000246 R12: 0000556f43d6dad0 [ 39.101987] R13: 00007ffc90e6ac40 R14: 0000556f43d6ebc0 R15: 0000556f43d7f780 [ 39.103070] [ 39.103418] irq event stamp: 2117 [ 39.103961] hardirqs last enabled at (2127): [] __up_console_sem+0x78/0x80 [ 39.105234] hardirqs last disabled at (2136): [] __up_console_sem+0x5d/0x80 [ 39.106488] softirqs last enabled at (1934): [] handle_softirqs+0x50c/0x770 [ 39.107781] softirqs last disabled at (1919): [] __irq_exit_rcu+0xc4/0x100 [ 39.109049] ---[ end trace 0000000000000000 ]--- [ 42.637637] ------------[ cut here ]------------ [ 42.638704] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code! [ 42.641143] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#0: sshd/242 [ 42.642586] Modules linked in: [ 42.643216] CPU: 0 UID: 104 PID: 242 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251118 #1 PREEMPT(voluntary) [ 42.645149] Tainted: [W]=WARN [ 42.645691] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 42.647130] RIP: 0010:vmalloc_fix_flags+0x91/0xd0 [ 42.648019] 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 [ 42.651131] RSP: 0018:ffff88801997fbc0 EFLAGS: 00010286 [ 42.652099] RAX: 0000000000000000 RBX: ffffed100332ff78 RCX: ffffffff813a4050 [ 42.653348] RDX: ffff88800f711bc0 RSI: ffffffff813a405e RDI: 0000000000000001 [ 42.654603] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed100332ff2f [ 42.655862] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0 [ 42.657135] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff88801997fdf8 [ 42.658388] FS: 00007fdb73f02900(0000) GS:ffff8880e538f000(0000) knlGS:0000000000000000 [ 42.659810] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.660848] CR2: 00007fdb743f4580 CR3: 0000000010376000 CR4: 0000000000350ef0 [ 42.662094] Call Trace: [ 42.662546] [ 42.662990] ? __pfx_vmalloc_fix_flags+0x10/0x10 [ 42.663842] ? __create_object+0x59/0x80 [ 42.664612] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 42.665561] __vmalloc_noprof+0x59/0x60 [ 42.666303] bpf_prog_alloc_no_stats+0x55/0x470 [ 42.667162] ? __pfx_seccomp_check_filter+0x10/0x10 [ 42.668093] bpf_prog_alloc+0x39/0x200 [ 42.668770] ? __pfx_seccomp_check_filter+0x10/0x10 [ 42.669680] bpf_prog_create_from_user+0xb2/0x2f0 [ 42.670567] do_seccomp+0x349/0x25e0 [ 42.671266] ? __pfx_css_rstat_updated+0x10/0x10 [ 42.672157] ? __pfx_do_seccomp+0x10/0x10 [ 42.672930] ? find_held_lock+0x2b/0x80 [ 42.673639] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 42.674590] ? static_key_count+0x60/0x80 [ 42.675370] prctl_set_seccomp+0x4e/0x70 [ 42.676151] __do_sys_prctl+0xe6c/0x1d70 [ 42.676874] ? __pfx___do_sys_prctl+0x10/0x10 [ 42.677707] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 42.678641] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0 [ 42.679576] ? irqentry_exit+0xf3/0x650 [ 42.680342] do_syscall_64+0xbf/0x430 [ 42.681072] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 42.682009] RIP: 0033:0x7fdb743f45cd [ 42.682657] 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 [ 42.685756] RSP: 002b:00007fff391322e0 EFLAGS: 00000246 ORIG_RAX: 000000000000009d [ 42.687103] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fdb743f45cd [ 42.688378] RDX: 00005649e96cbe00 RSI: 0000000000000002 RDI: 0000000000000016 [ 42.689640] RBP: 00007fff39132340 R08: 0000000000000000 R09: 00007fff391319e0 [ 42.690903] R10: 0000000000000000 R11: 0000000000000246 R12: 0000564a18b9bad0 [ 42.692162] R13: 00007fff39132770 R14: 0000564a18b9cbc0 R15: 0000564a18bad780 [ 42.693435] [ 42.693850] irq event stamp: 1695 [ 42.694484] hardirqs last enabled at (1711): [] __up_console_sem+0x78/0x80 [ 42.695982] hardirqs last disabled at (1720): [] __up_console_sem+0x5d/0x80 [ 42.697472] softirqs last enabled at (1708): [] handle_softirqs+0x50c/0x770 [ 42.698977] softirqs last disabled at (1703): [] __irq_exit_rcu+0xc4/0x100 [ 42.700503] ---[ end trace 0000000000000000 ]--- [ 43.517875] ------------[ cut here ]------------ [ 43.518730] Unexpected gfp: 0x400000 (__GFP_ACCOUNT). Fixing up to gfp: 0xdc0 (GFP_KERNEL|__GFP_ZERO). Fix your code! [ 43.520639] WARNING: mm/vmalloc.c:3937 at vmalloc_fix_flags+0x91/0xd0, CPU#0: sshd/250 [ 43.522032] Modules linked in: [ 43.522603] CPU: 0 UID: 104 PID: 250 Comm: sshd Tainted: G W 6.18.0-rc6-next-20251118 #1 PREEMPT(voluntary) [ 43.524513] Tainted: [W]=WARN [ 43.525098] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 43.526512] RIP: 0010:vmalloc_fix_flags+0x91/0xd0 [ 43.527389] 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 [ 43.530442] RSP: 0018:ffff888016b4fbc0 EFLAGS: 00010286 [ 43.531383] RAX: 0000000000000000 RBX: ffffed1002d69f78 RCX: ffffffff813a4050 [ 43.532632] RDX: ffff8880166a1bc0 RSI: ffffffff813a405e RDI: 0000000000000001 [ 43.533866] RBP: 0000000000001000 R08: 0000000000000001 R09: ffffed1002d69f2f [ 43.535119] R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000400dc0 [ 43.536365] R13: 0000000000000000 R14: 0000000000400dc0 R15: ffff888016b4fdf8 [ 43.537598] FS: 00007fcd3fef5900(0000) GS:ffff8880e538f000(0000) knlGS:0000000000000000 [ 43.538976] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.540002] CR2: 00007fcd403e7580 CR3: 000000000cfa4000 CR4: 0000000000350ef0 [ 43.541226] Call Trace: [ 43.541674] [ 43.542117] ? __pfx_vmalloc_fix_flags+0x10/0x10 [ 43.542971] ? __create_object+0x59/0x80 [ 43.543675] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 43.544615] __vmalloc_noprof+0x59/0x60 [ 43.545336] bpf_prog_alloc_no_stats+0x55/0x470 [ 43.546182] ? __pfx_seccomp_check_filter+0x10/0x10 [ 43.547077] bpf_prog_alloc+0x39/0x200 [ 43.547744] ? __pfx_seccomp_check_filter+0x10/0x10 [ 43.548659] bpf_prog_create_from_user+0xb2/0x2f0 [ 43.549539] do_seccomp+0x349/0x25e0 [ 43.550223] ? __pfx_css_rstat_updated+0x10/0x10 [ 43.551081] ? __pfx_do_seccomp+0x10/0x10 [ 43.551863] ? find_held_lock+0x2b/0x80 [ 43.552661] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 43.553661] ? static_key_count+0x60/0x80 [ 43.554492] prctl_set_seccomp+0x4e/0x70 [ 43.555274] __do_sys_prctl+0xe6c/0x1d70 [ 43.556071] ? __pfx___do_sys_prctl+0x10/0x10 [ 43.556846] ? trace_irq_enable.constprop.0+0xc2/0x100 [ 43.557649] ? lockdep_hardirqs_on_prepare+0xdb/0x1a0 [ 43.558445] ? irqentry_exit+0xf3/0x650 [ 43.559076] do_syscall_64+0xbf/0x430 [ 43.559651] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 43.560443] RIP: 0033:0x7fcd403e75cd [ 43.561019] 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 [ 43.563612] RSP: 002b:00007fffc7566e70 EFLAGS: 00000246 ORIG_RAX: 000000000000009d [ 43.564746] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fcd403e75cd [ 43.565799] RDX: 000055acc7cb2e00 RSI: 0000000000000002 RDI: 0000000000000016 [ 43.566841] RBP: 00007fffc7566ed0 R08: 0000000000000000 R09: 00007fffc7566570 [ 43.567921] R10: 0000000000000000 R11: 0000000000000246 R12: 000055ace7009ad0 [ 43.568990] R13: 00007fffc7567300 R14: 000055ace700abc0 R15: 000055ace701b780 [ 43.570057] [ 43.570407] irq event stamp: 1663 [ 43.570940] hardirqs last enabled at (1673): [] __up_console_sem+0x78/0x80 [ 43.572211] hardirqs last disabled at (1682): [] __up_console_sem+0x5d/0x80 [ 43.573456] softirqs last enabled at (434): [] handle_softirqs+0x50c/0x770 [ 43.574731] softirqs last disabled at (1701): [] __irq_exit_rcu+0xc4/0x100 [ 43.575980] ---[ end trace 0000000000000000 ]--- Warning: Permanently added '[localhost]:20825' (ECDSA) to the list of known hosts. 2025/11/19 00:35:33 fuzzer started 2025/11/19 00:35:34 dialing manager at localhost:34383 2025/11/19 00:35:34 checking machine... 2025/11/19 00:35:34 checking revisions... [ 44.444296] kmemleak: Automatic memory scanning thread ended 2025/11/19 00:35:34 testing simple program... [ 44.533558] cgroup: Unknown subsys name 'net' [ 44.598313] cgroup: Unknown subsys name 'cpuset' [ 44.612642] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program VM DIAGNOSIS: 00:35:33 Registers: info registers vcpu 0 RAX=0000000000000000 RBX=ffffffff85e787a8 RCX=ffffffff8175a745 RDX=ffff88800f9d8000 RSI=ffffffff8175a6eb RDI=0000000000000001 RBP=0000000000000001 RSP=ffff8880162bf8f8 R8 =0000000000000001 R9 =0000000000000000 R10=0000000000000001 R11=0000000000000001 R12=0000000000000000 R13=0000000000000000 R14=ffffffff85e787a8 R15=ffff888009462140 RIP=ffffffff84c72190 RFL=00000293 [--S-A-C] 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 00007fbd868e2900 00000000 00000000 GS =0000 ffff8880e538f000 00000000 00000000 LDT=0000 fffffe6d00000000 00000000 00000000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007f7085f57790 CR3=000000000a06c000 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=41f4ae6f3252311900000000000ae988 XMM05=76a801916958d0a70000000000321090 XMM06=090f1556b20111b300000000003201d8 XMM07=00000000000000000000000000000000 XMM08=415453454d49545f454d49544c414552 XMM09=00000000000000000000000000000000 XMM10=20200000000020202020202020200000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=ffffffff81b2d6b3 RBX=ffffffff86726364 RCX=ffffffff81b2d6a9 RDX=0000000000000000 RSI=ffffffff86ab8dd8 RDI=ffffffff8672632c RBP=ffffffff8672635c RSP=ffff888019a9f938 R8 =ffffffff86ab8dd8 R9 =0000000000000000 R10=000000000003c9ed R11=0000000000025764 R12=ffffffff86726360 R13=ffffffff8672632c R14=ffffffff86726358 R15=dffffc0000000000 RIP=ffffffff8135dacf RFL=00000287 [--S--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 00007fdb73f02900 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=00007fdb744b9618 CR3=0000000009caf000 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=563412feff00545000000000000080fe 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