syzkaller login: [ 73.492826] sshd (217) used greatest stack depth: 23864 bytes left Warning: Permanently added '[localhost]:43793' (ECDSA) to the list of known hosts. 2023/05/17 17:08:10 fuzzer started 2023/05/17 17:08:10 dialing manager at localhost:44319 2023/05/17 17:08:10 checking machine... 2023/05/17 17:08:10 checking revisions... [ 75.609694] kmemleak: Automatic memory scanning thread ended 2023/05/17 17:08:10 testing simple program... [ 75.682545] cgroup: Unknown subsys name 'net' [ 75.842573] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 87.916428] audit: type=1400 audit(1684343303.092:6): avc: denied { execmem } for pid=260 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 89.005092] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 89.006587] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 89.009431] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 89.013411] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 89.014905] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 89.016673] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 89.409785] ------------[ cut here ]------------ [ 89.410505] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 89.412394] WARNING: CPU: 0 PID: 261 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 89.413467] Modules linked in: [ 89.413870] CPU: 0 PID: 261 Comm: syz-executor.0 Tainted: G W L 6.4.0-rc2-next-20230517 #1 [ 89.415402] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 89.419596] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 89.420360] 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 60 40 e2 84 e8 fa ff d4 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 89.422671] RSP: 0018:ffff88801eda7c00 EFLAGS: 00010282 [ 89.423443] RAX: 0000000000000000 RBX: ffff88800efffc40 RCX: 0000000000000000 [ 89.424420] RDX: ffff88801ed98000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 89.425426] RBP: ffff88800efffc54 R08: 0000000000000001 R09: 0000000000000000 [ 89.426416] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 89.427379] R13: ffffffff84e23fe0 R14: ffff88800efffc48 R15: ffffffff84d74dc0 [ 89.428341] FS: 00005555569b4400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 89.429432] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 89.430301] CR2: 00007f6e807e56f4 CR3: 000000001a496000 CR4: 0000000000350ef0 [ 89.431315] Call Trace: [ 89.431647] [ 89.431937] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 89.432675] ipv4_frags_init_net+0x269/0x440 [ 89.433431] ops_init+0xbb/0x6b0 [ 89.433888] setup_net+0x3d9/0x990 [ 89.434489] ? down_read_killable+0x1d7/0x4e0 [ 89.435087] ? __pfx_setup_net+0x10/0x10 [ 89.435592] ? copy_net_ns+0x17c/0x770 [ 89.436129] copy_net_ns+0x321/0x770 [ 89.436617] create_new_namespaces+0x3f6/0xb30 [ 89.437229] unshare_nsproxy_namespaces+0xc1/0x200 [ 89.437847] ksys_unshare+0x44d/0x8e0 [ 89.438364] ? __pfx_ksys_unshare+0x10/0x10 [ 89.438903] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 89.439649] __x64_sys_unshare+0x31/0x40 [ 89.440195] do_syscall_64+0x3f/0x90 [ 89.440670] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 89.441348] RIP: 0033:0x7fbeb174d0d7 [ 89.441818] 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 [ 89.443990] RSP: 002b:00007ffe39941c48 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 89.444918] RAX: ffffffffffffffda RBX: 00007ffe39942288 RCX: 00007fbeb174d0d7 [ 89.445829] RDX: 00007fbeb17b741f RSI: 00007ffe39941be0 RDI: 0000000040000000 [ 89.446725] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffe399419f0 [ 89.447611] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fbeb185fbf0 [ 89.448507] R13: 00007ffe39941d20 R14: 0000000000000000 R15: 00000000000000f8 [ 89.449435] [ 89.449752] irq event stamp: 9413 [ 89.450205] hardirqs last enabled at (9425): [] __up_console_sem+0x78/0x80 [ 89.451259] hardirqs last disabled at (9436): [] __up_console_sem+0x5d/0x80 [ 89.452322] softirqs last enabled at (9264): [] irq_exit_rcu+0x93/0xc0 [ 89.453372] softirqs last disabled at (9259): [] irq_exit_rcu+0x93/0xc0 [ 89.454407] ---[ end trace 0000000000000000 ]--- [ 89.459627] ------------[ cut here ]------------ [ 89.460251] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 89.461888] WARNING: CPU: 0 PID: 261 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 89.462951] Modules linked in: [ 89.463385] CPU: 0 PID: 261 Comm: syz-executor.0 Tainted: G W L 6.4.0-rc2-next-20230517 #1 [ 89.464524] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 89.465544] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 89.466217] 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 60 40 e2 84 e8 fa ff d4 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 89.468374] RSP: 0018:ffff88801eda7c00 EFLAGS: 00010282 [ 89.469046] RAX: 0000000000000000 RBX: ffff888008fbae40 RCX: 0000000000000000 [ 89.469909] RDX: ffff88801ed98000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 89.470806] RBP: ffff888008fbae54 R08: 0000000000000001 R09: 0000000000000000 [ 89.471694] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 89.472577] R13: ffffffff84e23fe0 R14: ffff888008fbae48 R15: ffffffff84da7d60 [ 89.473490] FS: 00005555569b4400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 89.474483] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 89.475219] CR2: 00007f6e807e56f4 CR3: 000000001a496000 CR4: 0000000000350ef0 [ 89.476103] Call Trace: [ 89.476431] [ 89.476726] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 89.477378] ipv6_frags_init_net+0x206/0x3c0 [ 89.477936] ops_init+0xbb/0x6b0 [ 89.478409] setup_net+0x3d9/0x990 [ 89.478866] ? down_read_killable+0x1d7/0x4e0 [ 89.479460] ? __pfx_setup_net+0x10/0x10 [ 89.479969] ? copy_net_ns+0x17c/0x770 [ 89.480506] copy_net_ns+0x321/0x770 [ 89.480987] create_new_namespaces+0x3f6/0xb30 [ 89.481625] unshare_nsproxy_namespaces+0xc1/0x200 [ 89.482264] ksys_unshare+0x44d/0x8e0 [ 89.482751] ? __pfx_ksys_unshare+0x10/0x10 [ 89.483325] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 89.484062] __x64_sys_unshare+0x31/0x40 [ 89.484577] do_syscall_64+0x3f/0x90 [ 89.485078] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 89.485731] RIP: 0033:0x7fbeb174d0d7 [ 89.486258] 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 [ 89.488422] RSP: 002b:00007ffe39941c48 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 89.489399] RAX: ffffffffffffffda RBX: 00007ffe39942288 RCX: 00007fbeb174d0d7 [ 89.490278] RDX: 00007fbeb17b741f RSI: 00007ffe39941be0 RDI: 0000000040000000 [ 89.491157] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffe399419f0 [ 89.492043] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fbeb185fbf0 [ 89.492895] R13: 00007ffe39941d20 R14: 0000000000000000 R15: 00000000000000f8 [ 89.493819] [ 89.494158] irq event stamp: 11367 [ 89.494585] hardirqs last enabled at (11377): [] __up_console_sem+0x78/0x80 [ 89.495642] hardirqs last disabled at (11388): [] __up_console_sem+0x5d/0x80 [ 89.496703] softirqs last enabled at (11362): [] irq_exit_rcu+0x93/0xc0 [ 89.497743] softirqs last disabled at (11353): [] irq_exit_rcu+0x93/0xc0 [ 89.498775] ---[ end trace 0000000000000000 ]--- [ 89.500159] ------------[ cut here ]------------ [ 89.500740] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 89.502654] WARNING: CPU: 0 PID: 261 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 89.503720] Modules linked in: [ 89.504154] CPU: 0 PID: 261 Comm: syz-executor.0 Tainted: G W L 6.4.0-rc2-next-20230517 #1 [ 89.505293] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 89.506321] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 89.506959] 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 60 40 e2 84 e8 fa ff d4 fc <0f> 0b 48 89 e8 48 c1 e8 03 42 0f b6 14 20 48 89 e8 83 e0 07 83 c0 [ 89.509097] RSP: 0018:ffff88801eda7bf0 EFLAGS: 00010286 [ 89.509757] RAX: 0000000000000000 RBX: ffff88800dcda440 RCX: 0000000000000000 [ 89.510642] RDX: ffff88801ed98000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 89.511530] RBP: ffff88800dcda454 R08: 0000000000000001 R09: 0000000000000000 [ 89.512416] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 89.513292] R13: ffffffff84e23fe0 R14: ffff88800dcda448 R15: ffffffff84db0aa0 [ 89.514203] FS: 00005555569b4400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 89.515196] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 89.515902] CR2: 00007f6e807e56f4 CR3: 000000001a496000 CR4: 0000000000350ef0 [ 89.516795] Call Trace: [ 89.517148] [ 89.517456] nf_ct_net_init+0x224/0x3d0 [ 89.517969] ? __pfx_nf_ct_net_init+0x10/0x10 [ 89.518597] ops_init+0xbb/0x6b0 [ 89.519079] setup_net+0x3d9/0x990 [ 89.519546] ? down_read_killable+0x1d7/0x4e0 [ 89.520146] ? __pfx_setup_net+0x10/0x10 [ 89.520656] ? copy_net_ns+0x17c/0x770 [ 89.521191] copy_net_ns+0x321/0x770 [ 89.521694] create_new_namespaces+0x3f6/0xb30 [ 89.522309] unshare_nsproxy_namespaces+0xc1/0x200 [ 89.522925] ksys_unshare+0x44d/0x8e0 [ 89.523442] ? __pfx_ksys_unshare+0x10/0x10 [ 89.523983] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 89.524719] __x64_sys_unshare+0x31/0x40 [ 89.525267] do_syscall_64+0x3f/0x90 [ 89.525769] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 89.526435] RIP: 0033:0x7fbeb174d0d7 [ 89.526900] 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 [ 89.529053] RSP: 002b:00007ffe39941c48 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 89.529983] RAX: ffffffffffffffda RBX: 00007ffe39942288 RCX: 00007fbeb174d0d7 [ 89.530880] RDX: 00007fbeb17b741f RSI: 00007ffe39941be0 RDI: 0000000040000000 [ 89.531776] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffe399419f0 [ 89.532672] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fbeb185fbf0 [ 89.533582] R13: 00007ffe39941d20 R14: 0000000000000000 R15: 00000000000000f8 [ 89.534491] [ 89.534787] irq event stamp: 12181 [ 89.535258] hardirqs last enabled at (12193): [] __up_console_sem+0x78/0x80 [ 89.536324] hardirqs last disabled at (12204): [] __up_console_sem+0x5d/0x80 [ 89.537425] softirqs last enabled at (12154): [] irq_exit_rcu+0x93/0xc0 [ 89.538464] softirqs last disabled at (12149): [] irq_exit_rcu+0x93/0xc0 [ 89.539495] ---[ end trace 0000000000000000 ]--- executing program [ 91.086970] Bluetooth: hci0: command 0x0409 tx timeout [ 93.134057] Bluetooth: hci0: command 0x041b tx timeout executing program [ 95.182103] Bluetooth: hci0: command 0x040f tx timeout executing program [ 97.231069] Bluetooth: hci0: command 0x0419 tx timeout VM DIAGNOSIS: 17:07:52 Registers: info registers vcpu 0 RAX=0000000000000020 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507f85 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff88801eda7618 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000020 R11=0000000000000001 R12=0000000000000020 R13=ffffffff87f2dbc0 R14=0000000000000010 R15=ffffffff82507f70 RIP=ffffffff82507fdd 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 00005555569b4400 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=00007f6e807e56f4 CR3=000000001a496000 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=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 info registers vcpu 1 RAX=0000000000065d13 RBX=0000000000000001 RCX=ffffffff844d0a0e RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff81287415 RBP=dffffc0000000000 RSP=ffff888008dcfe70 R8 =0000000000000001 R9 =ffffed100d9e69f8 R10=ffff88806cf34fc3 R11=0000000000000001 R12=ffffffff85d35a10 R13=1ffff110011b9fd3 R14=0000000000000000 R15=0000000000000000 RIP=ffffffff844d199f RFL=00000202 [-------] 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 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=00007f1650038028 CR3=0000000016e08000 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=2034323a38303a37312037312079614d XMM01=5d3037383331342e39382020205b203a XMM02=75636578652d7a7973203a6d6d6f4320 XMM03=20204c20202020572020202020202020 XMM04=6e2d3263722d302e342e362020202020 XMM05=3a6465746e69615420302e726f747563 XMM06=32203a4449502030203a555043205d30 XMM07=6e72656b2072656c6c616b7a79732034 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000