syzkaller login: [ 47.216510] sshd (229) used greatest stack depth: 24160 bytes left Warning: Permanently added '[localhost]:10073' (ECDSA) to the list of known hosts. 2023/05/17 05:48:36 fuzzer started 2023/05/17 05:48:36 dialing manager at localhost:35573 2023/05/17 05:48:36 checking machine... 2023/05/17 05:48:36 checking revisions... [ 48.489079] kmemleak: Automatic memory scanning thread ended 2023/05/17 05:48:36 testing simple program... [ 48.552789] cgroup: Unknown subsys name 'net' [ 48.626393] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 61.326325] audit: type=1400 audit(1684302529.726:6): avc: denied { execmem } for pid=264 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 62.474838] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 62.477444] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 62.478703] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 62.481772] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 62.483261] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 62.484460] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 62.878420] ------------[ cut here ]------------ [ 62.879055] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 62.880762] WARNING: CPU: 1 PID: 265 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 62.881952] Modules linked in: [ 62.882479] CPU: 1 PID: 265 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 62.887273] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 62.888409] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 62.889056] 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 [ 62.891362] RSP: 0018:ffff8880161b7c00 EFLAGS: 00010282 [ 62.892022] RAX: 0000000000000000 RBX: ffff88800fabfc40 RCX: 0000000000000000 [ 62.893014] RDX: ffff88800eff51c0 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 62.894041] RBP: ffff88800fabfc54 R08: 0000000000000001 R09: 0000000000000000 [ 62.895027] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 62.896001] R13: ffffffff84e223a0 R14: ffff88800fabfc48 R15: ffffffff84d73340 [ 62.896974] FS: 0000555556990400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 62.898117] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 62.899021] CR2: 00007f7d7eb776f4 CR3: 0000000014742000 CR4: 0000000000350ee0 [ 62.900013] Call Trace: [ 62.900485] [ 62.900793] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 62.901533] ipv4_frags_init_net+0x269/0x440 [ 62.902115] ops_init+0xbb/0x6b0 [ 62.902677] setup_net+0x3d9/0x990 [ 62.903238] ? down_read_killable+0x1d7/0x4e0 [ 62.903805] ? __pfx_setup_net+0x10/0x10 [ 62.904345] ? copy_net_ns+0x17c/0x770 [ 62.904856] copy_net_ns+0x321/0x770 [ 62.905369] create_new_namespaces+0x3f6/0xb30 [ 62.905975] unshare_nsproxy_namespaces+0xc1/0x200 [ 62.906631] ksys_unshare+0x44d/0x8e0 [ 62.907128] ? __pfx_ksys_unshare+0x10/0x10 [ 62.907707] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 62.908454] __x64_sys_unshare+0x31/0x40 [ 62.908974] do_syscall_64+0x3f/0x90 [ 62.909482] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 62.910132] RIP: 0033:0x7f85b52510d7 [ 62.910639] 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 [ 62.912832] RSP: 002b:00007ffd20070a68 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 62.913791] RAX: ffffffffffffffda RBX: 00007ffd200710a8 RCX: 00007f85b52510d7 [ 62.914679] RDX: 00007f85b52bb41f RSI: 00007ffd20070a00 RDI: 0000000040000000 [ 62.915582] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd20070810 [ 62.916492] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f85b5363bf0 [ 62.917390] R13: 00007ffd20070b40 R14: 0000000000000000 R15: 00000000000000f8 [ 62.918343] [ 62.918648] irq event stamp: 9517 [ 62.919082] hardirqs last enabled at (9527): [] __up_console_sem+0x78/0x80 [ 62.920169] hardirqs last disabled at (9538): [] __up_console_sem+0x5d/0x80 [ 62.921239] softirqs last enabled at (9272): [] irq_exit_rcu+0x93/0xc0 [ 62.922291] softirqs last disabled at (9241): [] irq_exit_rcu+0x93/0xc0 [ 62.923326] ---[ end trace 0000000000000000 ]--- [ 62.929043] ------------[ cut here ]------------ [ 62.929849] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 62.931588] WARNING: CPU: 1 PID: 265 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 62.932648] Modules linked in: [ 62.933062] CPU: 1 PID: 265 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 62.934228] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 62.935240] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 62.935885] 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 [ 62.938170] RSP: 0018:ffff8880161b7c00 EFLAGS: 00010282 [ 62.938837] RAX: 0000000000000000 RBX: ffff88800d745c40 RCX: 0000000000000000 [ 62.939758] RDX: ffff88800eff51c0 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 62.940673] RBP: ffff88800d745c54 R08: 0000000000000001 R09: 0000000000000000 [ 62.941589] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 62.942512] R13: ffffffff84e223a0 R14: ffff88800d745c48 R15: ffffffff84da62e0 [ 62.943459] FS: 0000555556990400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 62.944497] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 62.945269] CR2: 00007f7d7eb776f4 CR3: 0000000014742000 CR4: 0000000000350ee0 [ 62.946223] Call Trace: [ 62.946566] [ 62.946876] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 62.947560] ipv6_frags_init_net+0x206/0x3c0 [ 62.948176] ops_init+0xbb/0x6b0 [ 62.948636] setup_net+0x3d9/0x990 [ 62.949099] ? down_read_killable+0x1d7/0x4e0 [ 62.949723] ? __pfx_setup_net+0x10/0x10 [ 62.950307] ? copy_net_ns+0x17c/0x770 [ 62.950828] copy_net_ns+0x321/0x770 [ 62.951363] create_new_namespaces+0x3f6/0xb30 [ 62.951977] unshare_nsproxy_namespaces+0xc1/0x200 [ 62.952651] ksys_unshare+0x44d/0x8e0 [ 62.953186] ? __pfx_ksys_unshare+0x10/0x10 [ 62.953767] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 62.954548] __x64_sys_unshare+0x31/0x40 [ 62.955082] do_syscall_64+0x3f/0x90 [ 62.955617] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 62.956325] RIP: 0033:0x7f85b52510d7 [ 62.956813] 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 [ 62.959078] RSP: 002b:00007ffd20070a68 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 62.960083] RAX: ffffffffffffffda RBX: 00007ffd200710a8 RCX: 00007f85b52510d7 [ 62.961026] RDX: 00007f85b52bb41f RSI: 00007ffd20070a00 RDI: 0000000040000000 [ 62.961968] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd20070810 [ 62.962900] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f85b5363bf0 [ 62.963836] R13: 00007ffd20070b40 R14: 0000000000000000 R15: 00000000000000f8 [ 62.964783] [ 62.965106] irq event stamp: 11569 [ 62.965589] hardirqs last enabled at (11581): [] __up_console_sem+0x78/0x80 [ 62.966727] hardirqs last disabled at (11592): [] __up_console_sem+0x5d/0x80 [ 62.967859] softirqs last enabled at (11052): [] irq_exit_rcu+0x93/0xc0 [ 62.968956] softirqs last disabled at (10975): [] irq_exit_rcu+0x93/0xc0 [ 62.970054] ---[ end trace 0000000000000000 ]--- [ 62.971432] ------------[ cut here ]------------ [ 62.972031] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 62.974006] WARNING: CPU: 1 PID: 265 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 62.975124] Modules linked in: [ 62.975576] CPU: 1 PID: 265 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 62.976780] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 62.977847] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 62.978554] 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 [ 62.980823] RSP: 0018:ffff8880161b7bf0 EFLAGS: 00010286 [ 62.981516] RAX: 0000000000000000 RBX: ffff88800d744240 RCX: 0000000000000000 [ 62.982413] RDX: ffff88800eff51c0 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 62.983345] RBP: ffff88800d744254 R08: 0000000000000001 R09: 0000000000000000 [ 62.984285] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 62.985216] R13: ffffffff84e223a0 R14: ffff88800d744248 R15: ffffffff84daf020 [ 62.986131] FS: 0000555556990400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 62.987199] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 62.987937] CR2: 00007f7d7eb776f4 CR3: 0000000014742000 CR4: 0000000000350ee0 [ 62.988884] Call Trace: [ 62.989256] [ 62.989566] nf_ct_net_init+0x224/0x3d0 [ 62.990108] ? __pfx_nf_ct_net_init+0x10/0x10 [ 62.990744] ops_init+0xbb/0x6b0 [ 62.991253] setup_net+0x3d9/0x990 [ 62.991732] ? down_read_killable+0x1d7/0x4e0 [ 62.992358] ? __pfx_setup_net+0x10/0x10 [ 62.992889] ? copy_net_ns+0x17c/0x770 [ 62.993452] copy_net_ns+0x321/0x770 [ 62.993970] create_new_namespaces+0x3f6/0xb30 [ 62.994619] unshare_nsproxy_namespaces+0xc1/0x200 [ 62.995292] ksys_unshare+0x44d/0x8e0 [ 62.995797] ? __pfx_ksys_unshare+0x10/0x10 [ 62.996402] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 62.997179] __x64_sys_unshare+0x31/0x40 [ 62.997722] do_syscall_64+0x3f/0x90 [ 62.998250] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 62.998925] RIP: 0033:0x7f85b52510d7 [ 62.999443] 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 [ 63.001696] RSP: 002b:00007ffd20070a68 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 63.002711] RAX: ffffffffffffffda RBX: 00007ffd200710a8 RCX: 00007f85b52510d7 [ 63.003650] RDX: 00007f85b52bb41f RSI: 00007ffd20070a00 RDI: 0000000040000000 [ 63.004583] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd20070810 [ 63.005472] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f85b5363bf0 [ 63.006420] R13: 00007ffd20070b40 R14: 0000000000000000 R15: 00000000000000f8 [ 63.007369] [ 63.007683] irq event stamp: 12323 [ 63.008125] hardirqs last enabled at (12333): [] __up_console_sem+0x78/0x80 [ 63.009274] hardirqs last disabled at (12346): [] __up_console_sem+0x5d/0x80 [ 63.010426] softirqs last enabled at (11984): [] irq_exit_rcu+0x93/0xc0 [ 63.011526] softirqs last disabled at (11979): [] irq_exit_rcu+0x93/0xc0 [ 63.012625] ---[ end trace 0000000000000000 ]--- executing program [ 64.554780] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 66.601202] Bluetooth: hci0: command 0x041b tx timeout [ 68.649205] Bluetooth: hci0: command 0x040f tx timeout executing program [ 70.697249] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 05:48:47 Registers: info registers vcpu 0 RAX=000000000002cf63 RBX=0000000000000000 RCX=ffffffff844c4a0e RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff81288625 RBP=dffffc0000000000 RSP=ffffffff85407e10 R8 =0000000000000001 R9 =ffffed100d9c69f8 R10=ffff88806ce34fc3 R11=0000000000000001 R12=ffffffff85d34a10 R13=1ffffffff0a80fc7 R14=0000000000000000 R15=0000000000000000 RIP=ffffffff844c599f RFL=00000206 [-----P-] 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 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=00007f810e57a000 CR3=00000000160aa000 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=3cb63987dca65691244405f7dc499b29 XMM02=6b1e99b806172e3b00000000000aea28 XMM03=ac8bc31478ec851100000000000aefa0 XMM04=3316421566564335000000000013cf38 XMM05=d3fdd5f48436fbd700000000000aead0 XMM06=fc2ee2b5efcdb46e00000000000ae988 XMM07=a1fcdcf819d7e1e500000000000ae728 XMM08=44495f474f4c5359530069253d595449 XMM09=00000000000000000000000000000000 XMM10=00200000000000000020000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000020 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff8880161b75f0 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 0000555556990400 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=00007f7d7eb776f4 CR3=0000000014742000 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