syzkaller login: [ 45.378925] sshd (223) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:21431' (ECDSA) to the list of known hosts. 2023/05/18 09:41:34 fuzzer started 2023/05/18 09:41:34 dialing manager at localhost:44319 2023/05/18 09:41:34 checking machine... 2023/05/18 09:41:34 checking revisions... [ 46.272395] kmemleak: Automatic memory scanning thread ended 2023/05/18 09:41:34 testing simple program... [ 46.328775] cgroup: Unknown subsys name 'net' [ 46.407295] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 59.071406] audit: type=1400 audit(1684402907.650:6): avc: denied { execmem } for pid=256 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 60.165380] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 60.167345] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 60.168607] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 60.171706] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 60.174935] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 60.176481] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 60.479326] ------------[ cut here ]------------ [ 60.479823] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 60.480929] WARNING: CPU: 1 PID: 257 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 60.481695] Modules linked in: [ 60.482063] CPU: 1 PID: 257 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 60.483364] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 60.486002] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 60.486424] 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 [ 60.487848] RSP: 0018:ffff88801f487c00 EFLAGS: 00010282 [ 60.488300] RAX: 0000000000000000 RBX: ffff88800f295c40 RCX: 0000000000000000 [ 60.488905] RDX: ffff88800fa78000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 60.489471] RBP: ffff88800f295c54 R08: 0000000000000001 R09: 0000000000000000 [ 60.490076] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 60.490651] R13: ffffffff84e23fe0 R14: ffff88800f295c48 R15: ffffffff84d74dc0 [ 60.491208] FS: 0000555555d87400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 60.491858] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.492311] CR2: 00007f434977b6f4 CR3: 00000000204a8000 CR4: 0000000000350ee0 [ 60.492927] Call Trace: [ 60.493145] [ 60.493332] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 60.493753] ipv4_frags_init_net+0x269/0x440 [ 60.494154] ops_init+0xbb/0x6b0 [ 60.494449] setup_net+0x3d9/0x990 [ 60.494778] ? down_read_killable+0x1d7/0x4e0 [ 60.495144] ? __pfx_setup_net+0x10/0x10 [ 60.495462] ? copy_net_ns+0x17c/0x770 [ 60.495808] copy_net_ns+0x321/0x770 [ 60.496116] create_new_namespaces+0x3f6/0xb30 [ 60.496493] unshare_nsproxy_namespaces+0xc1/0x200 [ 60.496936] ksys_unshare+0x44d/0x8e0 [ 60.497265] ? __pfx_ksys_unshare+0x10/0x10 [ 60.497650] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 60.498123] __x64_sys_unshare+0x31/0x40 [ 60.498449] do_syscall_64+0x3f/0x90 [ 60.498788] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 60.499215] RIP: 0033:0x7fb30bbc10d7 [ 60.499542] 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 [ 60.500964] RSP: 002b:00007ffc9a59efd8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 60.501599] RAX: ffffffffffffffda RBX: 00007ffc9a59f618 RCX: 00007fb30bbc10d7 [ 60.502202] RDX: 00007fb30bc2b41f RSI: 00007ffc9a59ef70 RDI: 0000000040000000 [ 60.502779] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc9a59ed80 [ 60.503310] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fb30bcd3bf0 [ 60.503883] R13: 00007ffc9a59f0b0 R14: 0000000000000000 R15: 00000000000000f8 [ 60.504456] [ 60.504690] irq event stamp: 8649 [ 60.505001] hardirqs last enabled at (8659): [] __up_console_sem+0x78/0x80 [ 60.505694] hardirqs last disabled at (8670): [] __up_console_sem+0x5d/0x80 [ 60.506413] softirqs last enabled at (7776): [] netlink_insert+0x187/0x1820 [ 60.507156] softirqs last disabled at (7774): [] release_sock+0x1f/0x1b0 [ 60.507869] ---[ end trace 0000000000000000 ]--- [ 60.512657] ------------[ cut here ]------------ [ 60.513140] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 60.514357] WARNING: CPU: 1 PID: 257 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 60.515135] Modules linked in: [ 60.515414] CPU: 1 PID: 257 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 60.516253] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 60.516986] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 60.517428] 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 [ 60.519085] RSP: 0018:ffff88801f487c00 EFLAGS: 00010282 [ 60.519552] RAX: 0000000000000000 RBX: ffff888013747c40 RCX: 0000000000000000 [ 60.520220] RDX: ffff88800fa78000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 60.520893] RBP: ffff888013747c54 R08: 0000000000000001 R09: 0000000000000000 [ 60.521486] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 60.522174] R13: ffffffff84e23fe0 R14: ffff888013747c48 R15: ffffffff84da7d60 [ 60.522797] FS: 0000555555d87400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 60.523474] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.524120] CR2: 00007f434977b6f4 CR3: 00000000204a8000 CR4: 0000000000350ee0 [ 60.524755] Call Trace: [ 60.524994] [ 60.525200] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 60.525672] ipv6_frags_init_net+0x206/0x3c0 [ 60.526103] ops_init+0xbb/0x6b0 [ 60.526423] setup_net+0x3d9/0x990 [ 60.526771] ? down_read_killable+0x1d7/0x4e0 [ 60.527175] ? __pfx_setup_net+0x10/0x10 [ 60.527554] ? copy_net_ns+0x17c/0x770 [ 60.527920] copy_net_ns+0x321/0x770 [ 60.528265] create_new_namespaces+0x3f6/0xb30 [ 60.528707] unshare_nsproxy_namespaces+0xc1/0x200 [ 60.529134] ksys_unshare+0x44d/0x8e0 [ 60.529480] ? __pfx_ksys_unshare+0x10/0x10 [ 60.529946] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 60.530443] __x64_sys_unshare+0x31/0x40 [ 60.530850] do_syscall_64+0x3f/0x90 [ 60.531196] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 60.531693] RIP: 0033:0x7fb30bbc10d7 [ 60.532030] 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 [ 60.533557] RSP: 002b:00007ffc9a59efd8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 60.534229] RAX: ffffffffffffffda RBX: 00007ffc9a59f618 RCX: 00007fb30bbc10d7 [ 60.534863] RDX: 00007fb30bc2b41f RSI: 00007ffc9a59ef70 RDI: 0000000040000000 [ 60.535471] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc9a59ed80 [ 60.536103] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fb30bcd3bf0 [ 60.536737] R13: 00007ffc9a59f0b0 R14: 0000000000000000 R15: 00000000000000f8 [ 60.537353] [ 60.537600] irq event stamp: 10733 [ 60.537937] hardirqs last enabled at (10743): [] __up_console_sem+0x78/0x80 [ 60.538705] hardirqs last disabled at (10754): [] __up_console_sem+0x5d/0x80 [ 60.539430] softirqs last enabled at (10706): [] irq_exit_rcu+0x93/0xc0 [ 60.540181] softirqs last disabled at (10701): [] irq_exit_rcu+0x93/0xc0 [ 60.540933] ---[ end trace 0000000000000000 ]--- [ 60.542089] ------------[ cut here ]------------ [ 60.542525] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 60.543854] WARNING: CPU: 1 PID: 257 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 60.544621] Modules linked in: [ 60.544909] CPU: 1 PID: 257 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 60.545712] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 60.546436] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 60.546928] 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 [ 60.548470] RSP: 0018:ffff88801f487bf0 EFLAGS: 00010286 [ 60.548953] RAX: 0000000000000000 RBX: ffff888013746440 RCX: 0000000000000000 [ 60.549592] RDX: ffff88800fa78000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 60.550243] RBP: ffff888013746454 R08: 0000000000000001 R09: 0000000000000000 [ 60.550877] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 60.551484] R13: ffffffff84e23fe0 R14: ffff888013746448 R15: ffffffff84db0aa0 [ 60.552113] FS: 0000555555d87400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 60.552837] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.553349] CR2: 00007f434977b6f4 CR3: 00000000204a8000 CR4: 0000000000350ee0 [ 60.554039] Call Trace: [ 60.554277] [ 60.554490] nf_ct_net_init+0x224/0x3d0 [ 60.554892] ? __pfx_nf_ct_net_init+0x10/0x10 [ 60.555295] ops_init+0xbb/0x6b0 [ 60.555645] setup_net+0x3d9/0x990 [ 60.555977] ? down_read_killable+0x1d7/0x4e0 [ 60.556389] ? __pfx_setup_net+0x10/0x10 [ 60.556782] ? copy_net_ns+0x17c/0x770 [ 60.557148] copy_net_ns+0x321/0x770 [ 60.557518] create_new_namespaces+0x3f6/0xb30 [ 60.557955] unshare_nsproxy_namespaces+0xc1/0x200 [ 60.558390] ksys_unshare+0x44d/0x8e0 [ 60.558773] ? __pfx_ksys_unshare+0x10/0x10 [ 60.559175] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 60.559717] __x64_sys_unshare+0x31/0x40 [ 60.560088] do_syscall_64+0x3f/0x90 [ 60.560426] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 60.560915] RIP: 0033:0x7fb30bbc10d7 [ 60.561245] 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 [ 60.562841] RSP: 002b:00007ffc9a59efd8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 60.563489] RAX: ffffffffffffffda RBX: 00007ffc9a59f618 RCX: 00007fb30bbc10d7 [ 60.564125] RDX: 00007fb30bc2b41f RSI: 00007ffc9a59ef70 RDI: 0000000040000000 [ 60.564759] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc9a59ed80 [ 60.565385] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fb30bcd3bf0 [ 60.566055] R13: 00007ffc9a59f0b0 R14: 0000000000000000 R15: 00000000000000f8 [ 60.566715] [ 60.566930] irq event stamp: 11511 [ 60.567242] hardirqs last enabled at (11521): [] __up_console_sem+0x78/0x80 [ 60.568023] hardirqs last disabled at (11532): [] __up_console_sem+0x5d/0x80 [ 60.568797] softirqs last enabled at (10706): [] irq_exit_rcu+0x93/0xc0 [ 60.569533] softirqs last disabled at (10701): [] irq_exit_rcu+0x93/0xc0 [ 60.570275] ---[ end trace 0000000000000000 ]--- executing program [ 62.193104] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 64.241152] Bluetooth: hci0: command 0x041b tx timeout [ 66.289615] Bluetooth: hci0: command 0x040f tx timeout executing program [ 68.337615] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 09:41:39 Registers: info registers vcpu 0 RAX=0000000000000000 RBX=dffffc0000000000 RCX=0000000000000000 RDX=1ffff11001b6cce9 RSI=ffffffff8172e070 RDI=ffff88800db66748 RBP=ffff88800db66740 RSP=ffff888016cf79e8 R8 =0000000000000001 R9 =0000000000000000 R10=0000000000000001 R11=0000000000000001 R12=00007fb8faeef000 R13=00007fb8faef0fff R14=0000000000000034 R15=00007fb8faef1000 RIP=ffffffff8172e08d 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 =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 00000000 00000000 FS =0000 00007fb8fa5d7700 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=00007fda5840d118 CR3=000000000d744000 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=2d205d3632333937342e30362020205b XMM01=656820747563205b2d2d2d2d2d2d2d2d XMM02=6c6c694b20465220657661532f64616f XMM03=65747379732072656c6c616b7a797320 XMM04=2037343a31343a39302038312079614d XMM05=65636f72703d7373616c63742030733a XMM06=733a755f6d65747379733d747865746e XMM07=725f6d65747379733a755f6d65747379 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000033 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507f85 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff88801f487618 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000033 R11=0000000000000001 R12=0000000000000033 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 0000555555d87400 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=00007f434977b6f4 CR3=00000000204a8000 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