syzkaller login: [ 42.983744] sshd (225) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:44855' (ECDSA) to the list of known hosts. 2023/05/17 11:38:16 fuzzer started 2023/05/17 11:38:17 dialing manager at localhost:44319 2023/05/17 11:38:17 checking machine... 2023/05/17 11:38:17 checking revisions... [ 44.240103] kmemleak: Automatic memory scanning thread ended 2023/05/17 11:38:17 testing simple program... [ 44.311812] cgroup: Unknown subsys name 'net' [ 44.434908] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 57.404621] audit: type=1400 audit(1684323510.382:6): 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 [ 58.548717] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 58.550177] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 58.551627] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 58.554438] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 58.556356] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 58.558099] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 58.977434] ------------[ cut here ]------------ [ 58.978306] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 58.980417] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 58.982053] Modules linked in: [ 58.982497] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 58.984983] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 58.988099] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 58.989099] 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 [ 58.991728] RSP: 0018:ffff88801a2b7c00 EFLAGS: 00010282 [ 58.992646] RAX: 0000000000000000 RBX: ffff888015b22040 RCX: 0000000000000000 [ 58.993675] RDX: ffff88800fc33680 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 58.994684] RBP: ffff888015b22054 R08: 0000000000000001 R09: 0000000000000000 [ 58.995709] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 58.996700] R13: ffffffff84e23fe0 R14: ffff888015b22048 R15: ffffffff84d74dc0 [ 58.997709] FS: 00005555559ad400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 58.998831] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.999681] CR2: 00007f35aebb16f4 CR3: 000000001969a000 CR4: 0000000000350ee0 [ 59.000678] Call Trace: [ 59.001045] [ 59.001379] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 59.002115] ipv4_frags_init_net+0x269/0x440 [ 59.002788] ops_init+0xbb/0x6b0 [ 59.003317] setup_net+0x3d9/0x990 [ 59.003869] ? down_read_killable+0x1d7/0x4e0 [ 59.004546] ? __pfx_setup_net+0x10/0x10 [ 59.005117] ? copy_net_ns+0x17c/0x770 [ 59.005727] copy_net_ns+0x321/0x770 [ 59.006267] create_new_namespaces+0x3f6/0xb30 [ 59.006965] unshare_nsproxy_namespaces+0xc1/0x200 [ 59.007709] ksys_unshare+0x44d/0x8e0 [ 59.008263] ? __pfx_ksys_unshare+0x10/0x10 [ 59.008921] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 59.009756] __x64_sys_unshare+0x31/0x40 [ 59.010335] do_syscall_64+0x3f/0x90 [ 59.010915] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 59.011703] RIP: 0033:0x7f183c3c30d7 [ 59.012229] 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 [ 59.014647] RSP: 002b:00007fff02b42f38 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 59.015726] RAX: ffffffffffffffda RBX: 00007fff02b43578 RCX: 00007f183c3c30d7 [ 59.016757] RDX: 00007f183c42d41f RSI: 00007fff02b42ed0 RDI: 0000000040000000 [ 59.017762] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff02b42ce0 [ 59.018765] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f183c4d5bf0 [ 59.019787] R13: 00007fff02b43010 R14: 0000000000000000 R15: 00000000000000f8 [ 59.020874] [ 59.021216] irq event stamp: 9607 [ 59.021730] hardirqs last enabled at (9619): [] __up_console_sem+0x78/0x80 [ 59.022923] hardirqs last disabled at (9630): [] __up_console_sem+0x5d/0x80 [ 59.024127] softirqs last enabled at (9204): [] irq_exit_rcu+0x93/0xc0 [ 59.025273] softirqs last disabled at (9191): [] irq_exit_rcu+0x93/0xc0 [ 59.026430] ---[ end trace 0000000000000000 ]--- [ 59.032381] ------------[ cut here ]------------ [ 59.033074] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 59.034927] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 59.036136] Modules linked in: [ 59.036628] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 59.037923] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 59.039155] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 59.039915] 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 [ 59.042330] RSP: 0018:ffff88801a2b7c00 EFLAGS: 00010282 [ 59.043098] RAX: 0000000000000000 RBX: ffff88800ed4aa40 RCX: 0000000000000000 [ 59.044096] RDX: ffff88800fc33680 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 59.045189] RBP: ffff88800ed4aa54 R08: 0000000000000001 R09: 0000000000000000 [ 59.046195] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 59.047215] R13: ffffffff84e23fe0 R14: ffff88800ed4aa48 R15: ffffffff84da7d60 [ 59.048337] FS: 00005555559ad400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 59.049440] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.050193] CR2: 00007f35aebb16f4 CR3: 000000001969a000 CR4: 0000000000350ee0 [ 59.051409] Call Trace: [ 59.051894] [ 59.052285] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 59.053128] ipv6_frags_init_net+0x206/0x3c0 [ 59.053928] ops_init+0xbb/0x6b0 [ 59.054575] setup_net+0x3d9/0x990 [ 59.055110] ? down_read_killable+0x1d7/0x4e0 [ 59.055785] ? __pfx_setup_net+0x10/0x10 [ 59.056348] ? copy_net_ns+0x17c/0x770 [ 59.056952] copy_net_ns+0x321/0x770 [ 59.057605] create_new_namespaces+0x3f6/0xb30 [ 59.058262] unshare_nsproxy_namespaces+0xc1/0x200 [ 59.058985] ksys_unshare+0x44d/0x8e0 [ 59.059587] ? __pfx_ksys_unshare+0x10/0x10 [ 59.060197] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 59.061191] __x64_sys_unshare+0x31/0x40 [ 59.061795] do_syscall_64+0x3f/0x90 [ 59.062284] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 59.062969] RIP: 0033:0x7f183c3c30d7 [ 59.063485] 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 [ 59.065672] RSP: 002b:00007fff02b42f38 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 59.066638] RAX: ffffffffffffffda RBX: 00007fff02b43578 RCX: 00007f183c3c30d7 [ 59.067831] RDX: 00007f183c42d41f RSI: 00007fff02b42ed0 RDI: 0000000040000000 [ 59.068779] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff02b42ce0 [ 59.069679] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f183c4d5bf0 [ 59.070611] R13: 00007fff02b43010 R14: 0000000000000000 R15: 00000000000000f8 [ 59.071550] [ 59.071853] irq event stamp: 11311 [ 59.072288] hardirqs last enabled at (11321): [] __up_console_sem+0x78/0x80 [ 59.073367] hardirqs last disabled at (11332): [] __up_console_sem+0x5d/0x80 [ 59.074588] softirqs last enabled at (11104): [] irq_exit_rcu+0x93/0xc0 [ 59.075758] softirqs last disabled at (11099): [] irq_exit_rcu+0x93/0xc0 [ 59.076800] ---[ end trace 0000000000000000 ]--- [ 59.078322] ------------[ cut here ]------------ [ 59.079017] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 59.080922] WARNING: CPU: 1 PID: 259 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 59.082003] Modules linked in: [ 59.082414] CPU: 1 PID: 259 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 59.083613] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 59.084639] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 59.085289] 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 [ 59.087657] RSP: 0018:ffff88801a2b7bf0 EFLAGS: 00010286 executing program [ 59.088359] RAX: 0000000000000000 RBX: ffff888009e28040 RCX: 0000000000000000 [ 59.089643] RDX: ffff88800fc33680 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 59.090835] RBP: ffff888009e28054 R08: 0000000000000001 R09: 0000000000000000 [ 59.092052] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 59.093231] R13: ffffffff84e23fe0 R14: ffff888009e28048 R15: ffffffff84db0aa0 [ 59.094421] FS: 00005555559ad400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 59.095777] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.096790] CR2: 00007f35aebb16f4 CR3: 000000001969a000 CR4: 0000000000350ee0 [ 59.098007] Call Trace: [ 59.098490] [ 59.098898] nf_ct_net_init+0x224/0x3d0 [ 59.099680] ? __pfx_nf_ct_net_init+0x10/0x10 [ 59.100490] ops_init+0xbb/0x6b0 [ 59.101101] setup_net+0x3d9/0x990 [ 59.101750] ? down_read_killable+0x1d7/0x4e0 [ 59.102562] ? __pfx_setup_net+0x10/0x10 [ 59.103257] ? copy_net_ns+0x17c/0x770 [ 59.103986] copy_net_ns+0x321/0x770 [ 59.104673] create_new_namespaces+0x3f6/0xb30 [ 59.105436] unshare_nsproxy_namespaces+0xc1/0x200 [ 59.106300] ksys_unshare+0x44d/0x8e0 [ 59.106886] ? __pfx_ksys_unshare+0x10/0x10 [ 59.107490] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 59.108222] __x64_sys_unshare+0x31/0x40 [ 59.108797] do_syscall_64+0x3f/0x90 [ 59.109294] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 59.109996] RIP: 0033:0x7f183c3c30d7 [ 59.110604] 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 [ 59.112933] RSP: 002b:00007fff02b42f38 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 59.113902] RAX: ffffffffffffffda RBX: 00007fff02b43578 RCX: 00007f183c3c30d7 [ 59.114815] RDX: 00007f183c42d41f RSI: 00007fff02b42ed0 RDI: 0000000040000000 [ 59.115766] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fff02b42ce0 [ 59.116719] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f183c4d5bf0 [ 59.117674] R13: 00007fff02b43010 R14: 0000000000000000 R15: 00000000000000f8 [ 59.118667] [ 59.119023] irq event stamp: 12123 [ 59.119539] hardirqs last enabled at (12135): [] __up_console_sem+0x78/0x80 [ 59.120706] hardirqs last disabled at (12152): [] __up_console_sem+0x5d/0x80 [ 59.121862] softirqs last enabled at (12148): [] irq_exit_rcu+0x93/0xc0 [ 59.122979] softirqs last disabled at (12143): [] irq_exit_rcu+0x93/0xc0 [ 59.124117] ---[ end trace 0000000000000000 ]--- [ 60.627061] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 62.674599] Bluetooth: hci0: command 0x041b tx timeout [ 64.722541] Bluetooth: hci0: command 0x040f tx timeout executing program [ 66.770525] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 11:38:31 Registers: info registers vcpu 0 RAX=0000000000000000 RBX=0000000000000001 RCX=ffffffff84471e8a RDX=ffff888019ffd1c0 RSI=0000000000000000 RDI=0000000000000005 RBP=ffffffff84e2fac0 RSP=ffff88801940f8b8 R8 =0000000000000005 R9 =0000000000000000 R10=0000000000000003 R11=0000000000000001 R12=0000000000000003 R13=0000000000000005 R14=0000000000000003 R15=ffff88801940fa28 RIP=ffffffff814be0a5 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 00007f648557c700 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=00007ff5d6d2ea50 CR3=000000000ddd0000 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=43205d3739343238392e38352020205b XMM01=6f7475636578652d7a7973203a6d6d6f XMM02=2d3263722d302e342e36202020202020 XMM03=6465746e69615420302e726f74756365 XMM04=00000000000a30303030303030303030 XMM05=303030303030303030303030203a3131 XMM06=3030203a303152205d3239313734382e XMM07=656c6c616b7a79732037353a37333a31 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000000 RBX=0000000000000002 RCX=ffff88800fc34108 RDX=1ffffffff0ef413b RSI=0000000000000008 RDI=ffffffff877a09d8 RBP=0000000000000001 RSP=ffff88801a2b74e0 R8 =0000000000000000 R9 =fffffbfff0ef3939 R10=ffffffff8779c9cf R11=0000000000000001 R12=ffff88800fc340e8 R13=ffff88800fc33680 R14=ffffffff8551e218 R15=ffffffff877a0920 RIP=ffffffff812cff86 RFL=00000046 [---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 =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 00000000 00000000 FS =0000 00005555559ad400 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=00007f35aebb16f4 CR3=000000001969a000 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