Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 29.146636] sshd (216) used greatest stack depth: 24152 bytes left Warning: Permanently added '[localhost]:2531' (ECDSA) to the list of known hosts. 2023/05/17 23:23:02 fuzzer started 2023/05/17 23:23:03 dialing manager at localhost:44319 2023/05/17 23:23:03 checking machine... 2023/05/17 23:23:03 checking revisions... [ 31.272359] kmemleak: Automatic memory scanning thread ended 2023/05/17 23:23:03 testing simple program... [ 31.318290] cgroup: Unknown subsys name 'net' [ 31.375556] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program [ 42.823836] audit: type=1400 audit(1684365795.034:6): 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 executing program [ 43.936483] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 43.946183] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 43.948611] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 43.952282] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 43.954590] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 43.956361] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 44.363412] ------------[ cut here ]------------ [ 44.364114] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 44.365853] WARNING: CPU: 1 PID: 257 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 44.367146] Modules linked in: [ 44.367585] CPU: 1 PID: 257 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 44.372317] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 44.373550] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 44.374414] 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 [ 44.376974] RSP: 0018:ffff88801f7e7c00 EFLAGS: 00010282 [ 44.377731] RAX: 0000000000000000 RBX: ffff88800ba20c40 RCX: 0000000000000000 [ 44.378822] RDX: ffff88800df73680 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 44.380016] RBP: ffff88800ba20c54 R08: 0000000000000001 R09: 0000000000000000 [ 44.381107] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 44.382158] R13: ffffffff84e23fe0 R14: ffff88800ba20c48 R15: ffffffff84d74dc0 [ 44.383178] FS: 0000555555d5b400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 44.384304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 44.385118] CR2: 00007f214d3636f4 CR3: 0000000016f4c000 CR4: 0000000000350ee0 [ 44.386108] Call Trace: [ 44.386479] [ 44.386804] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 44.387533] ipv4_frags_init_net+0x269/0x440 [ 44.388188] ops_init+0xbb/0x6b0 [ 44.388680] setup_net+0x3d9/0x990 [ 44.389227] ? down_read_killable+0x1d7/0x4e0 [ 44.389875] ? __pfx_setup_net+0x10/0x10 [ 44.390490] ? copy_net_ns+0x17c/0x770 [ 44.391091] copy_net_ns+0x321/0x770 [ 44.391630] create_new_namespaces+0x3f6/0xb30 [ 44.392332] unshare_nsproxy_namespaces+0xc1/0x200 [ 44.393051] ksys_unshare+0x44d/0x8e0 [ 44.393592] ? __pfx_ksys_unshare+0x10/0x10 [ 44.394241] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 44.395089] __x64_sys_unshare+0x31/0x40 [ 44.395666] do_syscall_64+0x3f/0x90 [ 44.396237] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 44.396986] RIP: 0033:0x7f49f77e30d7 [ 44.397506] 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 [ 44.399972] RSP: 002b:00007ffd014008b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 44.401050] RAX: ffffffffffffffda RBX: 00007ffd01400ef8 RCX: 00007f49f77e30d7 [ 44.402045] RDX: 00007f49f784d41f RSI: 00007ffd01400850 RDI: 0000000040000000 [ 44.403036] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd01400660 [ 44.404035] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f49f78f5bf0 [ 44.405017] R13: 00007ffd01400990 R14: 0000000000000000 R15: 00000000000000f8 [ 44.406028] [ 44.406363] irq event stamp: 7795 [ 44.406840] hardirqs last enabled at (7805): [] __up_console_sem+0x78/0x80 [ 44.408030] hardirqs last disabled at (7816): [] __up_console_sem+0x5d/0x80 [ 44.409213] softirqs last enabled at (7428): [] irq_exit_rcu+0x93/0xc0 [ 44.410384] softirqs last disabled at (7413): [] irq_exit_rcu+0x93/0xc0 [ 44.411544] ---[ end trace 0000000000000000 ]--- [ 44.421544] ------------[ cut here ]------------ [ 44.422250] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 44.424129] WARNING: CPU: 1 PID: 257 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 44.425273] Modules linked in: [ 44.425708] CPU: 1 PID: 257 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 44.426964] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 44.428095] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 44.428816] 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 [ 44.431261] RSP: 0018:ffff88801f7e7c00 EFLAGS: 00010282 [ 44.432029] RAX: 0000000000000000 RBX: ffff88800ef23240 RCX: 0000000000000000 [ 44.433026] RDX: ffff88800df73680 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 44.434022] RBP: ffff88800ef23254 R08: 0000000000000001 R09: 0000000000000000 [ 44.435042] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 44.436047] R13: ffffffff84e23fe0 R14: ffff88800ef23248 R15: ffffffff84da7d60 [ 44.437049] FS: 0000555555d5b400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 44.438163] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 44.439017] CR2: 00007f34bf6fb908 CR3: 0000000016f4c000 CR4: 0000000000350ee0 [ 44.440019] Call Trace: [ 44.440380] [ 44.440708] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 44.441432] ipv6_frags_init_net+0x206/0x3c0 [ 44.442086] ops_init+0xbb/0x6b0 [ 44.442605] setup_net+0x3d9/0x990 [ 44.443152] ? down_read_killable+0x1d7/0x4e0 [ 44.443790] ? __pfx_setup_net+0x10/0x10 [ 44.444390] ? copy_net_ns+0x17c/0x770 [ 44.445004] copy_net_ns+0x321/0x770 [ 44.445537] create_new_namespaces+0x3f6/0xb30 [ 44.446229] unshare_nsproxy_namespaces+0xc1/0x200 [ 44.446962] ksys_unshare+0x44d/0x8e0 [ 44.447508] ? __pfx_ksys_unshare+0x10/0x10 [ 44.448156] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 44.448979] __x64_sys_unshare+0x31/0x40 [ 44.449564] do_syscall_64+0x3f/0x90 [ 44.450137] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 44.450871] RIP: 0033:0x7f49f77e30d7 [ 44.451428] 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 [ 44.453869] RSP: 002b:00007ffd014008b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 44.454946] RAX: ffffffffffffffda RBX: 00007ffd01400ef8 RCX: 00007f49f77e30d7 [ 44.455884] RDX: 00007f49f784d41f RSI: 00007ffd01400850 RDI: 0000000040000000 [ 44.456864] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd01400660 [ 44.457806] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f49f78f5bf0 [ 44.458761] R13: 00007ffd01400990 R14: 0000000000000000 R15: 00000000000000f8 [ 44.459746] [ 44.460094] irq event stamp: 11531 [ 44.460555] hardirqs last enabled at (11541): [] __up_console_sem+0x78/0x80 [ 44.461699] hardirqs last disabled at (11552): [] __up_console_sem+0x5d/0x80 [ 44.462876] softirqs last enabled at (11402): [] irq_exit_rcu+0x93/0xc0 [ 44.464024] softirqs last disabled at (11397): [] irq_exit_rcu+0x93/0xc0 [ 44.465128] ---[ end trace 0000000000000000 ]--- [ 44.466604] ------------[ cut here ]------------ [ 44.467309] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 44.469406] WARNING: CPU: 1 PID: 257 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 44.470604] Modules linked in: [ 44.471081] CPU: 1 PID: 257 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 44.472352] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 44.473460] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 44.474203] 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 [ 44.476598] RSP: 0018:ffff88801f7e7bf0 EFLAGS: 00010286 [ 44.477341] RAX: 0000000000000000 RBX: ffff88800ef22c40 RCX: 0000000000000000 [ 44.478330] RDX: ffff88800df73680 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 44.479320] RBP: ffff88800ef22c54 R08: 0000000000000001 R09: 0000000000000000 [ 44.480303] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 44.481270] R13: ffffffff84e23fe0 R14: ffff88800ef22c48 R15: ffffffff84db0aa0 [ 44.482243] FS: 0000555555d5b400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 44.483355] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 44.484162] CR2: 00007f34bf6fb908 CR3: 0000000016f4c000 CR4: 0000000000350ee0 [ 44.485137] Call Trace: [ 44.485491] [ 44.485815] nf_ct_net_init+0x224/0x3d0 [ 44.486432] ? __pfx_nf_ct_net_init+0x10/0x10 [ 44.487098] ops_init+0xbb/0x6b0 [ 44.487584] setup_net+0x3d9/0x990 [ 44.488124] ? down_read_killable+0x1d7/0x4e0 [ 44.488746] ? __pfx_setup_net+0x10/0x10 [ 44.489347] ? copy_net_ns+0x17c/0x770 [ 44.489940] copy_net_ns+0x321/0x770 [ 44.490499] create_new_namespaces+0x3f6/0xb30 [ 44.491179] unshare_nsproxy_namespaces+0xc1/0x200 [ 44.491857] ksys_unshare+0x44d/0x8e0 [ 44.492426] ? __pfx_ksys_unshare+0x10/0x10 [ 44.493058] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 44.493837] __x64_sys_unshare+0x31/0x40 [ 44.494457] do_syscall_64+0x3f/0x90 [ 44.495018] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 44.495720] RIP: 0033:0x7f49f77e30d7 [ 44.496269] 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 [ 44.498669] RSP: 002b:00007ffd014008b8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 44.499708] RAX: ffffffffffffffda RBX: 00007ffd01400ef8 RCX: 00007f49f77e30d7 [ 44.500723] RDX: 00007f49f784d41f RSI: 00007ffd01400850 RDI: 0000000040000000 [ 44.501710] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffd01400660 [ 44.502708] R10: 0000000000000000 R11: 0000000000000206 R12: 00007f49f78f5bf0 [ 44.503689] R13: 00007ffd01400990 R14: 0000000000000000 R15: 00000000000000f8 [ 44.504680] [ 44.505042] irq event stamp: 12369 [ 44.505517] hardirqs last enabled at (12379): [] __up_console_sem+0x78/0x80 [ 44.506697] hardirqs last disabled at (12390): [] __up_console_sem+0x5d/0x80 [ 44.507877] softirqs last enabled at (12304): [] irq_exit_rcu+0x93/0xc0 [ 44.509043] softirqs last disabled at (12299): [] irq_exit_rcu+0x93/0xc0 [ 44.510179] ---[ end trace 0000000000000000 ]--- [ 46.020620] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 48.067990] Bluetooth: hci0: command 0x041b tx timeout executing program [ 50.116004] Bluetooth: hci0: command 0x040f tx timeout executing program [ 52.163986] Bluetooth: hci0: command 0x0419 tx timeout VM DIAGNOSIS: 23:23:15 Registers: info registers vcpu 0 RAX=000000000002ae11 RBX=0000000000000000 RCX=ffffffff844d0a0e RDX=0000000000000000 RSI=0000000000000000 RDI=ffffffff81287415 RBP=dffffc0000000000 RSP=ffffffff85407e10 R8 =0000000000000001 R9 =ffffed100d9c69f8 R10=ffff88806ce34fc3 R11=0000000000000001 R12=ffffffff85d35a10 R13=1ffffffff0a80fc7 R14=0000000000000000 R15=0000000000000000 RIP=ffffffff844d199f 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=00007f34bf68bc50 CR3=0000000015b1c000 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=2036313a33323a33322037312079614d XMM01=5d3335383536332e34342020205b203a XMM02=74656e20746120373532203a44495020 XMM03=735f74656e5f72657473696765722035 XMM04=7379735f74656e5f7265747369676572 XMM05=732f74656e20746120373532203a4449 XMM06=57205d3335383536332e34342020205b XMM07=79732036313a33323a33322037312079 XMM08=7475636578652d7a7973223d6d6d6f63 XMM09=00000000000000000000000000000000 XMM10=00000000000000000000000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000020 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507f85 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff88801f7e75f0 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 0000555555d5b400 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=00007f214d3636f4 CR3=0000000016f4c000 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