syzkaller login: [ 34.839228] sshd (227) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:6637' (ECDSA) to the list of known hosts. 2023/05/16 11:53:09 fuzzer started 2023/05/16 11:53:10 dialing manager at localhost:35573 2023/05/16 11:53:10 checking machine... 2023/05/16 11:53:10 checking revisions... [ 36.048419] kmemleak: Automatic memory scanning thread ended 2023/05/16 11:53:10 testing simple program... [ 36.133636] cgroup: Unknown subsys name 'net' [ 36.232887] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 48.966773] audit: type=1400 audit(1684238003.091:6): 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 [ 50.077460] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 50.079218] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 50.081660] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 50.084167] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 50.086079] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 50.088046] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 50.471875] ------------[ cut here ]------------ [ 50.472673] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 50.474792] WARNING: CPU: 0 PID: 261 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.476043] Modules linked in: [ 50.476582] CPU: 0 PID: 261 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 50.480859] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.481887] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.482571] 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 [ 50.484768] RSP: 0018:ffff88801d3ffc00 EFLAGS: 00010282 [ 50.485454] RAX: 0000000000000000 RBX: ffff88800ec39040 RCX: 0000000000000000 [ 50.486348] RDX: ffff88801d253680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 50.487221] RBP: ffff88800ec39054 R08: 0000000000000001 R09: 0000000000000000 [ 50.488128] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 50.489039] R13: ffffffff84e223a0 R14: ffff88800ec39048 R15: ffffffff84d73340 [ 50.489944] FS: 0000555556e4b400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 50.490951] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.491690] CR2: 00007fce8b67b6f4 CR3: 0000000019d4e000 CR4: 0000000000350ef0 [ 50.492625] Call Trace: [ 50.492957] [ 50.493286] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 50.493906] ipv4_frags_init_net+0x269/0x440 [ 50.494494] ops_init+0xbb/0x6b0 [ 50.494949] setup_net+0x3d9/0x990 [ 50.495431] ? down_read_killable+0x1d7/0x4e0 [ 50.496009] ? __pfx_setup_net+0x10/0x10 [ 50.496577] ? copy_net_ns+0x17c/0x770 [ 50.497091] copy_net_ns+0x321/0x770 [ 50.497604] create_new_namespaces+0x3f6/0xb30 [ 50.498193] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.498845] ksys_unshare+0x44d/0x8e0 [ 50.499369] ? __pfx_ksys_unshare+0x10/0x10 [ 50.499920] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.500677] __x64_sys_unshare+0x31/0x40 [ 50.501198] do_syscall_64+0x3f/0x90 [ 50.501706] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.502379] RIP: 0033:0x7f84c90e20d7 [ 50.502846] 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 [ 50.505034] RSP: 002b:00007ffe618b3e28 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 50.505985] RAX: ffffffffffffffda RBX: 00007ffe618b4468 RCX: 00007f84c90e20d7 [ 50.506882] RDX: 00007f84c914c41f RSI: 00007ffe618b3dc0 RDI: 0000000040000000 [ 50.507773] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffe618b3bd0 [ 50.508677] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f84c91f4bf0 [ 50.509566] R13: 00007ffe618b3f00 R14: 0000000000000000 R15: 00000000000000f8 [ 50.510498] [ 50.510800] irq event stamp: 8615 [ 50.511230] hardirqs last enabled at (8625): [] __up_console_sem+0x78/0x80 [ 50.512313] hardirqs last disabled at (8638): [] __up_console_sem+0x5d/0x80 [ 50.513390] softirqs last enabled at (8030): [] irq_exit_rcu+0x93/0xc0 [ 50.514429] softirqs last disabled at (7861): [] irq_exit_rcu+0x93/0xc0 [ 50.515491] ---[ end trace 0000000000000000 ]--- [ 50.520481] ------------[ cut here ]------------ [ 50.521074] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 50.522703] WARNING: CPU: 0 PID: 261 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.523799] Modules linked in: [ 50.524215] CPU: 0 PID: 261 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 50.525379] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.526394] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.527031] 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 [ 50.529233] RSP: 0018:ffff88801d3ffc00 EFLAGS: 00010282 [ 50.529907] RAX: 0000000000000000 RBX: ffff88800cbeba40 RCX: 0000000000000000 [ 50.530796] RDX: ffff88801d253680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 50.531702] RBP: ffff88800cbeba54 R08: 0000000000000001 R09: 0000000000000000 [ 50.532602] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 50.533492] R13: ffffffff84e223a0 R14: ffff88800cbeba48 R15: ffffffff84da62e0 [ 50.534383] FS: 0000555556e4b400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 50.535376] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.536073] CR2: 00007fce8b67b6f4 CR3: 0000000019d4e000 CR4: 0000000000350ef0 [ 50.536998] Call Trace: [ 50.537356] [ 50.537656] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 50.538292] ipv6_frags_init_net+0x206/0x3c0 [ 50.538851] ops_init+0xbb/0x6b0 [ 50.539319] setup_net+0x3d9/0x990 [ 50.539776] ? down_read_killable+0x1d7/0x4e0 [ 50.540381] ? __pfx_setup_net+0x10/0x10 [ 50.540890] ? copy_net_ns+0x17c/0x770 [ 50.541431] copy_net_ns+0x321/0x770 [ 50.541912] create_new_namespaces+0x3f6/0xb30 [ 50.542529] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.543152] ksys_unshare+0x44d/0x8e0 [ 50.543679] ? __pfx_ksys_unshare+0x10/0x10 [ 50.544230] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.544968] __x64_sys_unshare+0x31/0x40 [ 50.545528] do_syscall_64+0x3f/0x90 [ 50.545998] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.546680] RIP: 0033:0x7f84c90e20d7 [ 50.547143] 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 [ 50.549329] RSP: 002b:00007ffe618b3e28 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 50.550276] RAX: ffffffffffffffda RBX: 00007ffe618b4468 RCX: 00007f84c90e20d7 [ 50.551128] RDX: 00007f84c914c41f RSI: 00007ffe618b3dc0 RDI: 0000000040000000 [ 50.552011] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffe618b3bd0 [ 50.552906] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f84c91f4bf0 [ 50.553798] R13: 00007ffe618b3f00 R14: 0000000000000000 R15: 00000000000000f8 [ 50.554704] [ 50.555002] irq event stamp: 10149 [ 50.555470] hardirqs last enabled at (10161): [] __up_console_sem+0x78/0x80 [ 50.556553] hardirqs last disabled at (10172): [] __up_console_sem+0x5d/0x80 [ 50.557623] softirqs last enabled at (9598): [] irq_exit_rcu+0x93/0xc0 [ 50.558658] softirqs last disabled at (9557): [] irq_exit_rcu+0x93/0xc0 [ 50.559688] ---[ end trace 0000000000000000 ]--- [ 50.561021] ------------[ cut here ]------------ [ 50.561639] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 50.563665] WARNING: CPU: 0 PID: 261 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 50.564733] Modules linked in: [ 50.565136] CPU: 0 PID: 261 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 50.566295] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 50.567306] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 50.567939] 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 [ 50.570105] RSP: 0018:ffff88801d3ffbf0 EFLAGS: 00010286 [ 50.570781] RAX: 0000000000000000 RBX: ffff88800cbeb440 RCX: 0000000000000000 [ 50.571676] RDX: ffff88801d253680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 50.572570] RBP: ffff88800cbeb454 R08: 0000000000000001 R09: 0000000000000000 [ 50.573462] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 50.574337] R13: ffffffff84e223a0 R14: ffff88800cbeb448 R15: ffffffff84daf020 [ 50.575186] FS: 0000555556e4b400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 [ 50.576206] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.576939] CR2: 00007fce8b67b6f4 CR3: 0000000019d4e000 CR4: 0000000000350ef0 [ 50.577829] Call Trace: [ 50.578152] [ 50.578486] nf_ct_net_init+0x224/0x3d0 [ 50.579001] ? __pfx_nf_ct_net_init+0x10/0x10 [ 50.579607] ops_init+0xbb/0x6b0 [ 50.580048] setup_net+0x3d9/0x990 [ 50.580548] ? down_read_killable+0x1d7/0x4e0 [ 50.581109] ? __pfx_setup_net+0x10/0x10 [ 50.581647] ? copy_net_ns+0x17c/0x770 [ 50.582150] copy_net_ns+0x321/0x770 [ 50.582678] create_new_namespaces+0x3f6/0xb30 [ 50.583299] unshare_nsproxy_namespaces+0xc1/0x200 [ 50.583913] ksys_unshare+0x44d/0x8e0 [ 50.584475] ? __pfx_ksys_unshare+0x10/0x10 [ 50.585019] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 50.585764] __x64_sys_unshare+0x31/0x40 [ 50.586311] do_syscall_64+0x3f/0x90 [ 50.586782] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 50.587452] RIP: 0033:0x7f84c90e20d7 [ 50.587915] 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 [ 50.590097] RSP: 002b:00007ffe618b3e28 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 50.591050] RAX: ffffffffffffffda RBX: 00007ffe618b4468 RCX: 00007f84c90e20d7 [ 50.591939] RDX: 00007f84c914c41f RSI: 00007ffe618b3dc0 RDI: 0000000040000000 [ 50.592853] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffe618b3bd0 [ 50.593741] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f84c91f4bf0 [ 50.594625] R13: 00007ffe618b3f00 R14: 0000000000000000 R15: 00000000000000f8 [ 50.595526] [ 50.595825] irq event stamp: 10951 [ 50.596295] hardirqs last enabled at (10963): [] __up_console_sem+0x78/0x80 [ 50.597362] hardirqs last disabled at (10974): [] __up_console_sem+0x5d/0x80 [ 50.598428] softirqs last enabled at (10746): [] irq_exit_rcu+0x93/0xc0 [ 50.599469] softirqs last disabled at (10741): [] irq_exit_rcu+0x93/0xc0 [ 50.600509] ---[ end trace 0000000000000000 ]--- executing program [ 52.160845] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 54.208305] Bluetooth: hci0: command 0x041b tx timeout [ 56.256311] Bluetooth: hci0: command 0x040f tx timeout executing program [ 58.304314] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 11:53:24 Registers: info registers vcpu 0 RAX=0000000000000020 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff88801d3ff5f0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000020 R11=0000000000000001 R12=0000000000000020 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 0000555556e4b400 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=00007fce8b67b6f4 CR3=0000000019d4e000 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=000000000002aeef RBX=0000000000000001 RCX=ffffffff844c4a0e RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff81288625 RBP=dffffc0000000000 RSP=ffff888008dcfe68 R8 =0000000000000001 R9 =ffffed100d9e69f8 R10=ffff88806cf34fc3 R11=0000000000000001 R12=ffffffff85d34a10 R13=1ffff110011b9fd2 R14=0000000000000000 R15=0000000000000000 RIP=ffffffff844c599f 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=00007efe25a3e268 CR3=000000000e91c000 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=2034323a33353a31312036312079614d XMM01=5d3238353637342e30352020205b203a XMM02=75636578652d7a7973203a6d6d6f4320 XMM03=20202020202020572020202020202020 XMM04=6e2d3263722d302e342e362020202020 XMM05=3a6465746e69615420302e726f747563 XMM06=32203a4449502030203a555043205d32 XMM07=6e72656b2072656c6c616b7a79732034 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000