Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 36.288852] sshd (224) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:11173' (ECDSA) to the list of known hosts. 2023/05/17 02:44:58 fuzzer started 2023/05/17 02:44:58 dialing manager at localhost:35573 2023/05/17 02:44:58 checking machine... 2023/05/17 02:44:58 checking revisions... [ 37.515934] kmemleak: Automatic memory scanning thread ended 2023/05/17 02:44:58 testing simple program... [ 37.591015] cgroup: Unknown subsys name 'net' [ 37.675245] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 50.236474] audit: type=1400 audit(1684291511.630:6): avc: denied { execmem } for pid=258 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 51.365231] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 51.366834] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 51.369469] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 51.372853] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 51.374997] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 51.376694] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 51.753695] ------------[ cut here ]------------ [ 51.754355] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 51.756245] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 51.757647] Modules linked in: [ 51.758085] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 51.761395] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 51.764036] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 51.764784] Code: 89 d8 4c 8b 43 08 48 c1 e8 03 42 80 3c 20 00 0f 85 af 00 00 00 48 8b 13 4c 89 e9 4c 89 fe 48 c7 c7 20 24 e2 84 e8 6a cd d5 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 51.767167] RSP: 0018:ffff88801fdffc00 EFLAGS: 00010282 [ 51.767915] RAX: 0000000000000000 RBX: ffff88800e524840 RCX: 0000000000000000 [ 51.768870] RDX: ffff8880168b3680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 51.769845] RBP: ffff88800e524854 R08: 0000000000000001 R09: 0000000000000000 [ 51.770731] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 51.771671] R13: ffffffff84e223a0 R14: ffff88800e524848 R15: ffffffff84d73340 [ 51.772660] FS: 00005555560cb400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 51.773756] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.774577] CR2: 00007f20711606f4 CR3: 000000001bd0e000 CR4: 0000000000350ee0 [ 51.775552] Call Trace: [ 51.775900] [ 51.776221] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 51.776906] ipv4_frags_init_net+0x269/0x440 [ 51.777593] ops_init+0xbb/0x6b0 [ 51.778083] setup_net+0x3d9/0x990 [ 51.778615] ? down_read_killable+0x1d7/0x4e0 [ 51.779217] ? __pfx_setup_net+0x10/0x10 [ 51.779825] ? copy_net_ns+0x17c/0x770 [ 51.780417] copy_net_ns+0x321/0x770 [ 51.780931] create_new_namespaces+0x3f6/0xb30 [ 51.781608] unshare_nsproxy_namespaces+0xc1/0x200 [ 51.782335] ksys_unshare+0x44d/0x8e0 [ 51.782873] ? __pfx_ksys_unshare+0x10/0x10 [ 51.783498] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 51.784266] __x64_sys_unshare+0x31/0x40 [ 51.784872] do_syscall_64+0x3f/0x90 [ 51.785435] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 51.786135] RIP: 0033:0x7f8f39fde0d7 [ 51.786679] Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 51.789019] RSP: 002b:00007ffe57064e78 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 51.790046] RAX: ffffffffffffffda RBX: 00007ffe570654b8 RCX: 00007f8f39fde0d7 [ 51.790995] RDX: 00007f8f3a04841f RSI: 00007ffe57064e10 RDI: 0000000040000000 [ 51.791964] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffe57064c20 [ 51.792934] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f8f3a0f0bf0 [ 51.793913] R13: 00007ffe57064f50 R14: 0000000000000000 R15: 00000000000000f8 [ 51.794899] [ 51.795223] irq event stamp: 9473 [ 51.795723] hardirqs last enabled at (9485): [] __up_console_sem+0x78/0x80 [ 51.796865] hardirqs last disabled at (9496): [] __up_console_sem+0x5d/0x80 [ 51.798035] softirqs last enabled at (9156): [] irq_exit_rcu+0x93/0xc0 [ 51.799151] softirqs last disabled at (9151): [] irq_exit_rcu+0x93/0xc0 [ 51.800274] ---[ end trace 0000000000000000 ]--- [ 51.805502] ------------[ cut here ]------------ [ 51.806140] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 51.807867] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 51.809012] Modules linked in: [ 51.809497] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 51.810739] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 51.811829] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 51.812556] Code: 89 d8 4c 8b 43 08 48 c1 e8 03 42 80 3c 20 00 0f 85 af 00 00 00 48 8b 13 4c 89 e9 4c 89 fe 48 c7 c7 20 24 e2 84 e8 6a cd d5 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 51.814906] RSP: 0018:ffff88801fdffc00 EFLAGS: 00010282 [ 51.815647] RAX: 0000000000000000 RBX: ffff88800f0ba040 RCX: 0000000000000000 [ 51.816611] RDX: ffff8880168b3680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 51.817584] RBP: ffff88800f0ba054 R08: 0000000000000001 R09: 0000000000000000 [ 51.818551] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 51.819508] R13: ffffffff84e223a0 R14: ffff88800f0ba048 R15: ffffffff84da62e0 [ 51.820451] FS: 00005555560cb400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 51.821540] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.822345] CR2: 00007f20711606f4 CR3: 000000001bd0e000 CR4: 0000000000350ee0 [ 51.823268] Call Trace: [ 51.823668] [ 51.823991] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 51.824697] ipv6_frags_init_net+0x206/0x3c0 [ 51.825336] ops_init+0xbb/0x6b0 [ 51.825837] setup_net+0x3d9/0x990 [ 51.826374] ? down_read_killable+0x1d7/0x4e0 [ 51.826975] ? __pfx_setup_net+0x10/0x10 [ 51.827558] ? copy_net_ns+0x17c/0x770 [ 51.828100] copy_net_ns+0x321/0x770 [ 51.828658] create_new_namespaces+0x3f6/0xb30 [ 51.829325] unshare_nsproxy_namespaces+0xc1/0x200 [ 51.830001] ksys_unshare+0x44d/0x8e0 [ 51.830577] ? __pfx_ksys_unshare+0x10/0x10 [ 51.831162] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 51.831963] __x64_sys_unshare+0x31/0x40 [ 51.832557] do_syscall_64+0x3f/0x90 [ 51.833065] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 51.833807] RIP: 0033:0x7f8f39fde0d7 [ 51.834342] Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 51.836664] RSP: 002b:00007ffe57064e78 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 51.837699] RAX: ffffffffffffffda RBX: 00007ffe570654b8 RCX: 00007f8f39fde0d7 [ 51.838673] RDX: 00007f8f3a04841f RSI: 00007ffe57064e10 RDI: 0000000040000000 [ 51.839626] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffe57064c20 [ 51.840585] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f8f3a0f0bf0 [ 51.841547] R13: 00007ffe57064f50 R14: 0000000000000000 R15: 00000000000000f8 [ 51.842539] [ 51.842866] irq event stamp: 11179 [ 51.843373] hardirqs last enabled at (11191): [] __up_console_sem+0x78/0x80 [ 51.844515] hardirqs last disabled at (11202): [] __up_console_sem+0x5d/0x80 [ 51.845695] softirqs last enabled at (11116): [] irq_exit_rcu+0x93/0xc0 [ 51.846815] softirqs last disabled at (11111): [] irq_exit_rcu+0x93/0xc0 [ 51.847933] ---[ end trace 0000000000000000 ]--- [ 51.849331] ------------[ cut here ]------------ [ 51.849958] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 51.851920] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 51.853063] Modules linked in: [ 51.853550] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 51.854795] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 51.855887] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 51.856612] Code: 89 d8 4c 8b 43 08 48 c1 e8 03 42 80 3c 20 00 0f 85 af 00 00 00 48 8b 13 4c 89 e9 4c 89 fe 48 c7 c7 20 24 e2 84 e8 6a cd d5 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 51.858957] RSP: 0018:ffff88801fdffbf0 EFLAGS: 00010286 [ 51.859693] RAX: 0000000000000000 RBX: ffff88800f0ba640 RCX: 0000000000000000 [ 51.860656] RDX: ffff8880168b3680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 51.861616] RBP: ffff88800f0ba654 R08: 0000000000000001 R09: 0000000000000000 [ 51.862575] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 51.863531] R13: ffffffff84e223a0 R14: ffff88800f0ba648 R15: ffffffff84daf020 [ 51.864493] FS: 00005555560cb400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 51.865590] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.866385] CR2: 00007f20711606f4 CR3: 000000001bd0e000 CR4: 0000000000350ee0 [ 51.867341] Call Trace: [ 51.867688] [ 51.868011] nf_ct_net_init+0x224/0x3d0 [ 51.868597] ? __pfx_nf_ct_net_init+0x10/0x10 [ 51.869207] ops_init+0xbb/0x6b0 [ 51.869728] setup_net+0x3d9/0x990 [ 51.870215] ? down_read_killable+0x1d7/0x4e0 [ 51.870857] ? __pfx_setup_net+0x10/0x10 [ 51.871441] ? copy_net_ns+0x17c/0x770 [ 51.871978] copy_net_ns+0x321/0x770 [ 51.872522] create_new_namespaces+0x3f6/0xb30 [ 51.873146] unshare_nsproxy_namespaces+0xc1/0x200 [ 51.873864] ksys_unshare+0x44d/0x8e0 [ 51.874432] ? __pfx_ksys_unshare+0x10/0x10 [ 51.875012] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 51.875816] __x64_sys_unshare+0x31/0x40 [ 51.876417] do_syscall_64+0x3f/0x90 [ 51.876925] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 51.877701] RIP: 0033:0x7f8f39fde0d7 [ 51.878201] Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 [ 51.880507] RSP: 002b:00007ffe57064e78 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 51.881530] RAX: ffffffffffffffda RBX: 00007ffe570654b8 RCX: 00007f8f39fde0d7 [ 51.882489] RDX: 00007f8f3a04841f RSI: 00007ffe57064e10 RDI: 0000000040000000 [ 51.883432] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffe57064c20 [ 51.884387] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f8f3a0f0bf0 [ 51.885343] R13: 00007ffe57064f50 R14: 0000000000000000 R15: 00000000000000f8 [ 51.886355] [ 51.886678] irq event stamp: 11925 [ 51.887141] hardirqs last enabled at (11935): [] __up_console_sem+0x78/0x80 [ 51.888317] hardirqs last disabled at (11948): [] __up_console_sem+0x5d/0x80 [ 51.889471] softirqs last enabled at (11460): [] irq_exit_rcu+0x93/0xc0 [ 51.890589] softirqs last disabled at (11451): [] irq_exit_rcu+0x93/0xc0 [ 51.891712] ---[ end trace 0000000000000000 ]--- executing program [ 53.446887] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 55.495520] Bluetooth: hci0: command 0x041b tx timeout [ 57.542374] Bluetooth: hci0: command 0x040f tx timeout executing program [ 59.590360] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 02:45:12 Registers: info registers vcpu 0 RAX=dffffc0000000000 RBX=ffff88806ce3a480 RCX=0000000000000000 RDX=1ffff1100d9c7494 RSI=ffffffff8164fe94 RDI=ffff88806ce3a4a0 RBP=0000000000000000 RSP=ffff8880101dfb30 R8 =0000000000000001 R9 =0000000000000000 R10=0000000000000000 R11=0000000000000001 R12=0000000000000000 R13=ffff888018e04000 R14=ffff888015b8b000 R15=ffff8880101f1b40 RIP=ffffffff8135cc7b RFL=00000246 [---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 =0000 0000000000000000 00000000 00000000 DS =0000 0000000000000000 00000000 00000000 FS =0000 00007f75dd7e3900 00000000 00000000 GS =0000 ffff88806ce00000 00000000 00000000 LDT=0000 fffffe0000000000 00000000 00000000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007f75dcbfcd40 CR3=000000000d830000 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=494e4f544f4e4f4d5f454352554f535f XMM01=49545f43494e4f544f4e4f4d5f454352 XMM02=38303062343861363036386166633561 XMM03=2f6c616e72756f6a2f676f6c2f6e7572 XMM04=0013ad65119292df0000000000111d38 XMM05=d3fdd5f48436fbd700000000000aead0 XMM06=97d3558897fa818b00000000000ae988 XMM07=00000000000000000000000000000000 XMM08=44495f474f4c5359530069253d595449 XMM09=00000000000000000000000000000000 XMM10=00000000000000000020000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000033 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff88801fdff618 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000033 R11=0000000000000001 R12=0000000000000033 R13=ffffffff87f27bc0 R14=0000000000000010 R15=ffffffff82507670 RIP=ffffffff825076dd RFL=00000002 [-------] 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 00005555560cb400 00000000 00000000 GS =0000 ffff88806cf00000 00000000 00000000 LDT=0000 fffffe0000000000 00000000 00000000 TR =0040 fffffe000004a000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000048000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=00007f20711606f4 CR3=000000001bd0e000 CR4=00350ee0 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=00000000000000000000000000000000 XMM02=00000000000000000000000000000000 XMM03=00000000000000000000000000000000 XMM04=0000000000000000000000000000ff00 XMM05=00000000000000000000000000000000 XMM06=00000000000000000000000000000000 XMM07=00000000000000000000000000000000 XMM08=00000000000000000000000000000000 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000