Debian GNU/Linux 11 syzkaller ttyS0 syzkaller login: [ 40.359270] sshd (223) used greatest stack depth: 24160 bytes left Warning: Permanently added '[localhost]:50756' (ECDSA) to the list of known hosts. 2023/05/17 20:07:24 fuzzer started 2023/05/17 20:07:24 dialing manager at localhost:44319 2023/05/17 20:07:24 checking machine... 2023/05/17 20:07:24 checking revisions... [ 41.537344] kmemleak: Automatic memory scanning thread ended 2023/05/17 20:07:25 testing simple program... [ 41.601388] cgroup: Unknown subsys name 'net' [ 41.667355] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 54.803267] audit: type=1400 audit(1684354058.331:6): avc: denied { execmem } for pid=257 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 55.968213] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 55.969824] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 55.971262] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 55.974317] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 55.976195] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 55.977457] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 56.337994] ------------[ cut here ]------------ [ 56.338613] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 56.340709] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 56.341796] Modules linked in: [ 56.342346] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 56.344198] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 56.346734] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 56.348372] 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 [ 56.350489] RSP: 0018:ffff8880204afc00 EFLAGS: 00010282 [ 56.351194] RAX: 0000000000000000 RBX: ffff88800b37d040 RCX: 0000000000000000 [ 56.352051] RDX: ffff8880147e8000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 56.352851] RBP: ffff88800b37d054 R08: 0000000000000001 R09: 0000000000000000 [ 56.353691] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 56.354537] R13: ffffffff84e23fe0 R14: ffff88800b37d048 R15: ffffffff84d74dc0 [ 56.355367] FS: 0000555555765400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 56.356303] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.356966] CR2: 00007ff5dd8726f4 CR3: 000000000bb12000 CR4: 0000000000350ee0 [ 56.357797] Call Trace: [ 56.358130] [ 56.358417] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 56.358992] ipv4_frags_init_net+0x269/0x440 [ 56.359566] ops_init+0xbb/0x6b0 [ 56.359986] setup_net+0x3d9/0x990 [ 56.360448] ? down_read_killable+0x1d7/0x4e0 [ 56.360978] ? __pfx_setup_net+0x10/0x10 [ 56.361485] ? copy_net_ns+0x17c/0x770 [ 56.361964] copy_net_ns+0x321/0x770 [ 56.362450] create_new_namespaces+0x3f6/0xb30 [ 56.363030] unshare_nsproxy_namespaces+0xc1/0x200 [ 56.363616] ksys_unshare+0x44d/0x8e0 [ 56.364108] ? __pfx_ksys_unshare+0x10/0x10 [ 56.364615] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 56.365306] __x64_sys_unshare+0x31/0x40 [ 56.365792] do_syscall_64+0x3f/0x90 [ 56.366271] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 56.366878] RIP: 0033:0x7fc34ecec0d7 [ 56.367345] 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 [ 56.369386] RSP: 002b:00007fffde82f718 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 56.370266] RAX: ffffffffffffffda RBX: 00007fffde82fd58 RCX: 00007fc34ecec0d7 [ 56.371097] RDX: 00007fc34ed5641f RSI: 00007fffde82f6b0 RDI: 0000000040000000 [ 56.371892] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffde82f4c0 [ 56.372714] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fc34edfebf0 [ 56.373535] R13: 00007fffde82f7f0 R14: 0000000000000000 R15: 00000000000000f8 [ 56.374388] [ 56.374668] irq event stamp: 9895 [ 56.375096] hardirqs last enabled at (9907): [] __up_console_sem+0x78/0x80 [ 56.376097] hardirqs last disabled at (9918): [] __up_console_sem+0x5d/0x80 [ 56.377084] softirqs last enabled at (9448): [] irq_exit_rcu+0x93/0xc0 [ 56.378062] softirqs last disabled at (9419): [] irq_exit_rcu+0x93/0xc0 [ 56.378988] ---[ end trace 0000000000000000 ]--- [ 56.385729] ------------[ cut here ]------------ [ 56.386394] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 56.388106] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 56.389095] Modules linked in: [ 56.389474] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 56.390609] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 56.391562] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 56.392205] 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 [ 56.394244] RSP: 0018:ffff8880204afc00 EFLAGS: 00010282 [ 56.394897] RAX: 0000000000000000 RBX: ffff88800ebbee40 RCX: 0000000000000000 [ 56.395798] RDX: ffff8880147e8000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 56.396630] RBP: ffff88800ebbee54 R08: 0000000000000001 R09: 0000000000000000 [ 56.397462] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 56.398293] R13: ffffffff84e23fe0 R14: ffff88800ebbee48 R15: ffffffff84da7d60 [ 56.399125] FS: 0000555555765400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 56.400062] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.400727] CR2: 00007ff5dd8726f4 CR3: 000000000bb12000 CR4: 0000000000350ee0 [ 56.401562] Call Trace: [ 56.401870] [ 56.402181] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 56.402754] ipv6_frags_init_net+0x206/0x3c0 [ 56.403311] ops_init+0xbb/0x6b0 [ 56.403758] setup_net+0x3d9/0x990 [ 56.404220] ? down_read_killable+0x1d7/0x4e0 [ 56.404759] ? __pfx_setup_net+0x10/0x10 [ 56.405269] ? copy_net_ns+0x17c/0x770 [ 56.405747] copy_net_ns+0x321/0x770 [ 56.406229] create_new_namespaces+0x3f6/0xb30 [ 56.406776] unshare_nsproxy_namespaces+0xc1/0x200 [ 56.407379] ksys_unshare+0x44d/0x8e0 [ 56.407850] ? __pfx_ksys_unshare+0x10/0x10 [ 56.408392] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 56.409086] __x64_sys_unshare+0x31/0x40 [ 56.409571] do_syscall_64+0x3f/0x90 [ 56.410048] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 56.410652] RIP: 0033:0x7fc34ecec0d7 [ 56.411115] 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 [ 56.413144] RSP: 002b:00007fffde82f718 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 56.414048] RAX: ffffffffffffffda RBX: 00007fffde82fd58 RCX: 00007fc34ecec0d7 executing program [ 56.414851] RDX: 00007fc34ed5641f RSI: 00007fffde82f6b0 RDI: 0000000040000000 [ 56.415878] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffde82f4c0 [ 56.416763] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fc34edfebf0 [ 56.417654] R13: 00007fffde82f7f0 R14: 0000000000000000 R15: 00000000000000f8 [ 56.418565] [ 56.418863] irq event stamp: 11901 [ 56.419330] hardirqs last enabled at (11913): [] __up_console_sem+0x78/0x80 [ 56.420405] hardirqs last disabled at (11924): [] __up_console_sem+0x5d/0x80 [ 56.421456] softirqs last enabled at (11440): [] irq_exit_rcu+0x93/0xc0 [ 56.422479] softirqs last disabled at (11435): [] irq_exit_rcu+0x93/0xc0 [ 56.423525] ---[ end trace 0000000000000000 ]--- [ 56.424835] ------------[ cut here ]------------ [ 56.425480] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 56.427438] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 56.428505] Modules linked in: [ 56.428911] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230517 #1 [ 56.430070] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 56.431078] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 56.431726] 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 [ 56.433891] RSP: 0018:ffff8880204afbf0 EFLAGS: 00010286 [ 56.434570] RAX: 0000000000000000 RBX: ffff88800ebbe840 RCX: 0000000000000000 [ 56.435463] RDX: ffff8880147e8000 RSI: ffffffff81171ad2 RDI: 0000000000000001 [ 56.436359] RBP: ffff88800ebbe854 R08: 0000000000000001 R09: 0000000000000000 [ 56.437255] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 56.438133] R13: ffffffff84e23fe0 R14: ffff88800ebbe848 R15: ffffffff84db0aa0 [ 56.438986] FS: 0000555555765400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 56.439991] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.440732] CR2: 00007ff5dd8726f4 CR3: 000000000bb12000 CR4: 0000000000350ee0 [ 56.441610] Call Trace: [ 56.441933] [ 56.442262] nf_ct_net_init+0x224/0x3d0 [ 56.442779] ? __pfx_nf_ct_net_init+0x10/0x10 [ 56.443378] ops_init+0xbb/0x6b0 [ 56.443831] setup_net+0x3d9/0x990 [ 56.444316] ? down_read_killable+0x1d7/0x4e0 [ 56.444884] ? __pfx_setup_net+0x10/0x10 [ 56.445420] ? copy_net_ns+0x17c/0x770 [ 56.445926] copy_net_ns+0x321/0x770 [ 56.446437] create_new_namespaces+0x3f6/0xb30 [ 56.447043] unshare_nsproxy_namespaces+0xc1/0x200 [ 56.447673] ksys_unshare+0x44d/0x8e0 [ 56.448187] ? __pfx_ksys_unshare+0x10/0x10 [ 56.448734] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 56.449467] __x64_sys_unshare+0x31/0x40 [ 56.449981] do_syscall_64+0x3f/0x90 [ 56.450500] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 56.451177] RIP: 0033:0x7fc34ecec0d7 [ 56.451657] 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 [ 56.453830] RSP: 002b:00007fffde82f718 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 [ 56.454777] RAX: ffffffffffffffda RBX: 00007fffde82fd58 RCX: 00007fc34ecec0d7 [ 56.455681] RDX: 00007fc34ed5641f RSI: 00007fffde82f6b0 RDI: 0000000040000000 [ 56.456565] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007fffde82f4c0 [ 56.457455] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fc34edfebf0 [ 56.458348] R13: 00007fffde82f7f0 R14: 0000000000000000 R15: 00000000000000f8 [ 56.459253] [ 56.459560] irq event stamp: 12709 [ 56.459993] hardirqs last enabled at (12719): [] __up_console_sem+0x78/0x80 [ 56.461070] hardirqs last disabled at (12732): [] __up_console_sem+0x5d/0x80 [ 56.462137] softirqs last enabled at (12616): [] irq_exit_rcu+0x93/0xc0 [ 56.463172] softirqs last disabled at (12609): [] irq_exit_rcu+0x93/0xc0 [ 56.464213] ---[ end trace 0000000000000000 ]--- [ 57.991670] Bluetooth: hci0: command 0x0409 tx timeout executing program [ 60.039665] Bluetooth: hci0: command 0x041b tx timeout [ 62.086083] Bluetooth: hci0: command 0x040f tx timeout executing program [ 64.134079] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 20:07:33 Registers: info registers vcpu 0 RAX=000000000001f677 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=00007fe794f1c028 CR3=000000000e9a6000 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=682881b773ec68bb024b822d6743e1c3 XMM02=6b1e99b806172e3b00000000000aea28 XMM03=ac8bc31478ec851100000000000aefa0 XMM04=d35f14e95510c1f6000000000010eb90 XMM05=d3fdd5f48436fbd700000000000aead0 XMM06=6d8775f73be4060b00000000000ae988 XMM07=a1fcdcf819d7e1e500000000000ae728 XMM08=44495f474f4c5359530069253d595449 XMM09=00000000000000000000000000000000 XMM10=00000000000000000020000000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000030 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507f85 RDI=ffffffff87f2dc00 RBP=ffffffff87f2dbc0 RSP=ffff8880204af5e0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000030 R11=0000000000000001 R12=0000000000000030 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 0000555555765400 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=00007ff5dd8726f4 CR3=000000000bb12000 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