syzkaller login: [ 45.702726] sshd (216) used greatest stack depth: 24160 bytes left Warning: Permanently added '[localhost]:63472' (ECDSA) to the list of known hosts. 2023/05/16 21:13:31 fuzzer started 2023/05/16 21:13:31 dialing manager at localhost:35573 2023/05/16 21:13:31 checking machine... 2023/05/16 21:13:31 checking revisions... [ 47.828634] kmemleak: Automatic memory scanning thread ended 2023/05/16 21:13:32 testing simple program... [ 47.905854] cgroup: Unknown subsys name 'net' [ 47.992491] cgroup: Unknown subsys name 'rlimit' executing program executing program executing program executing program [ 60.305214] audit: type=1400 audit(1684271624.566:6): 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 [ 61.442214] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 61.443940] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 61.445500] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 61.447983] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 61.449615] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 61.451412] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 61.853435] ------------[ cut here ]------------ [ 61.854086] sysctl net/ipv4/ipfrag_low_thresh: data points to kernel global data: ipfrag_low_thresh_unused [ 61.855923] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 61.857006] Modules linked in: [ 61.857447] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 61.859308] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 61.861299] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 61.862560] 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 [ 61.864619] RSP: 0018:ffff8880142cfc00 EFLAGS: 00010282 [ 61.865278] RAX: 0000000000000000 RBX: ffff88800c507440 RCX: 0000000000000000 [ 61.866085] RDX: ffff8880101ab680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 61.866926] RBP: ffff88800c507454 R08: 0000000000000001 R09: 0000000000000000 [ 61.867811] R10: 0000000000000001 R11: 0000000000000001 R12: dffffc0000000000 [ 61.868709] R13: ffffffff84e223a0 R14: ffff88800c507448 R15: ffffffff84d73340 [ 61.869612] FS: 0000555555ca6400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 61.870628] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.871407] CR2: 00007f8bc85f16f4 CR3: 000000000ddec000 CR4: 0000000000350ee0 [ 61.872304] Call Trace: [ 61.872640] [ 61.872935] ? __pfx_ipv4_frags_init_net+0x10/0x10 [ 61.873585] ipv4_frags_init_net+0x269/0x440 [ 61.874182] ops_init+0xbb/0x6b0 [ 61.874629] setup_net+0x3d9/0x990 [ 61.875083] ? down_read_killable+0x1d7/0x4e0 [ 61.875696] ? __pfx_setup_net+0x10/0x10 [ 61.876244] ? copy_net_ns+0x17c/0x770 [ 61.876755] copy_net_ns+0x321/0x770 [ 61.877263] create_new_namespaces+0x3f6/0xb30 [ 61.877846] unshare_nsproxy_namespaces+0xc1/0x200 [ 61.878496] ksys_unshare+0x44d/0x8e0 [ 61.878995] ? __pfx_ksys_unshare+0x10/0x10 [ 61.879593] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 61.880346] __x64_sys_unshare+0x31/0x40 [ 61.880867] do_syscall_64+0x3f/0x90 [ 61.881380] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 61.882018] RIP: 0033:0x7efcd60190d7 [ 61.882519] 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 [ 61.884721] RSP: 002b:00007ffc1294ff58 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 61.885659] RAX: ffffffffffffffda RBX: 00007ffc12950598 RCX: 00007efcd60190d7 [ 61.886553] RDX: 00007efcd608341f RSI: 00007ffc1294fef0 RDI: 0000000040000000 [ 61.887439] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc1294fd00 [ 61.888312] R10: 0000000000000000 R11: 0000000000000202 R12: 00007efcd612bbf0 [ 61.889203] R13: 00007ffc12950030 R14: 0000000000000000 R15: 00000000000000f8 [ 61.890078] [ 61.890409] irq event stamp: 10981 [ 61.890847] hardirqs last enabled at (10991): [] __up_console_sem+0x78/0x80 [ 61.891926] hardirqs last disabled at (11002): [] __up_console_sem+0x5d/0x80 [ 61.893001] softirqs last enabled at (10468): [] irq_exit_rcu+0x93/0xc0 [ 61.894041] softirqs last disabled at (10437): [] irq_exit_rcu+0x93/0xc0 [ 61.895054] ---[ end trace 0000000000000000 ]--- [ 61.900080] ------------[ cut here ]------------ [ 61.900688] sysctl net/ipv6/ip6frag_low_thresh: data points to kernel global data: ip6_frags_low_thresh_unused [ 61.902460] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 61.903624] Modules linked in: [ 61.904032] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 61.905183] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 61.906186] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 61.906816] 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 [ 61.908988] RSP: 0018:ffff8880142cfc00 EFLAGS: 00010282 [ 61.909679] RAX: 0000000000000000 RBX: ffff888008f07c40 RCX: 0000000000000000 [ 61.910565] RDX: ffff8880101ab680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 61.911439] RBP: ffff888008f07c54 R08: 0000000000000001 R09: 0000000000000000 [ 61.912337] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 61.913240] R13: ffffffff84e223a0 R14: ffff888008f07c48 R15: ffffffff84da62e0 [ 61.914143] FS: 0000555555ca6400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 61.915157] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.915876] CR2: 00007f8bc85f16f4 CR3: 000000000ddec000 CR4: 0000000000350ee0 [ 61.916777] Call Trace: [ 61.917142] [ 61.917441] ? __pfx_ipv6_frags_init_net+0x10/0x10 [ 61.918042] ipv6_frags_init_net+0x206/0x3c0 [ 61.918626] ops_init+0xbb/0x6b0 [ 61.919064] setup_net+0x3d9/0x990 [ 61.919558] ? down_read_killable+0x1d7/0x4e0 [ 61.920162] ? __pfx_setup_net+0x10/0x10 [ 61.920672] ? copy_net_ns+0x17c/0x770 [ 61.921219] copy_net_ns+0x321/0x770 [ 61.921701] create_new_namespaces+0x3f6/0xb30 [ 61.922319] unshare_nsproxy_namespaces+0xc1/0x200 [ 61.922941] ksys_unshare+0x44d/0x8e0 [ 61.923526] ? __pfx_ksys_unshare+0x10/0x10 [ 61.924061] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 61.924816] __x64_sys_unshare+0x31/0x40 [ 61.925358] do_syscall_64+0x3f/0x90 [ 61.925833] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 61.926511] RIP: 0033:0x7efcd60190d7 [ 61.926971] 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 [ 61.929146] RSP: 002b:00007ffc1294ff58 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 61.930060] RAX: ffffffffffffffda RBX: 00007ffc12950598 RCX: 00007efcd60190d7 [ 61.930962] RDX: 00007efcd608341f RSI: 00007ffc1294fef0 RDI: 0000000040000000 [ 61.931858] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc1294fd00 [ 61.932753] R10: 0000000000000000 R11: 0000000000000202 R12: 00007efcd612bbf0 [ 61.933669] R13: 00007ffc12950030 R14: 0000000000000000 R15: 00000000000000f8 [ 61.934586] [ 61.934886] irq event stamp: 12611 [ 61.935385] hardirqs last enabled at (12623): [] __up_console_sem+0x78/0x80 [ 61.936438] hardirqs last disabled at (12634): [] __up_console_sem+0x5d/0x80 [ 61.937497] softirqs last enabled at (11868): [] irq_exit_rcu+0x93/0xc0 [ 61.938541] softirqs last disabled at (11827): [] irq_exit_rcu+0x93/0xc0 [ 61.939599] ---[ end trace 0000000000000000 ]--- [ 61.940923] ------------[ cut here ]------------ [ 61.941550] sysctl net/netfilter/nf_conntrack_frag6_low_thresh: data points to kernel global data: nf_conntrack_frag6_low_thresh_unused [ 61.943667] WARNING: CPU: 1 PID: 258 at net/sysctl_net.c:155 register_net_sysctl+0x1e6/0x2c0 [ 61.944720] Modules linked in: [ 61.945167] CPU: 1 PID: 258 Comm: syz-executor.0 Tainted: G W 6.4.0-rc2-next-20230516 #1 [ 61.946348] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 [ 61.947364] RIP: 0010:register_net_sysctl+0x1e6/0x2c0 [ 61.947999] 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 [ 61.950180] RSP: 0018:ffff8880142cfbf0 EFLAGS: 00010286 [ 61.950837] RAX: 0000000000000000 RBX: ffff888008f06440 RCX: 0000000000000000 [ 61.951750] RDX: ffff8880101ab680 RSI: ffffffff81172af2 RDI: 0000000000000001 [ 61.952656] RBP: ffff888008f06454 R08: 0000000000000001 R09: 0000000000000000 [ 61.953549] R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 [ 61.954439] R13: ffffffff84e223a0 R14: ffff888008f06448 R15: ffffffff84daf020 [ 61.955373] FS: 0000555555ca6400(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 [ 61.956371] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.957064] CR2: 00007f8bc85f16f4 CR3: 000000000ddec000 CR4: 0000000000350ee0 [ 61.957966] Call Trace: [ 61.958334] [ 61.958635] nf_ct_net_init+0x224/0x3d0 [ 61.959192] ? __pfx_nf_ct_net_init+0x10/0x10 [ 61.959755] ops_init+0xbb/0x6b0 [ 61.960232] setup_net+0x3d9/0x990 [ 61.960681] ? down_read_killable+0x1d7/0x4e0 [ 61.961282] ? __pfx_setup_net+0x10/0x10 [ 61.961792] ? copy_net_ns+0x17c/0x770 [ 61.962333] copy_net_ns+0x321/0x770 [ 61.962809] create_new_namespaces+0x3f6/0xb30 [ 61.963458] unshare_nsproxy_namespaces+0xc1/0x200 [ 61.964067] ksys_unshare+0x44d/0x8e0 [ 61.964606] ? __pfx_ksys_unshare+0x10/0x10 [ 61.965190] ? __pfx_blkcg_maybe_throttle_current+0x10/0x10 [ 61.965885] __x64_sys_unshare+0x31/0x40 [ 61.966436] do_syscall_64+0x3f/0x90 [ 61.966902] entry_SYSCALL_64_after_hwframe+0x72/0xdc [ 61.967585] RIP: 0033:0x7efcd60190d7 [ 61.968053] 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 [ 61.970204] RSP: 002b:00007ffc1294ff58 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 61.971177] RAX: ffffffffffffffda RBX: 00007ffc12950598 RCX: 00007efcd60190d7 [ 61.972026] RDX: 00007efcd608341f RSI: 00007ffc1294fef0 RDI: 0000000040000000 [ 61.972924] RBP: 00000000ffffffff R08: 0000000000000000 R09: 00007ffc1294fd00 [ 61.973810] R10: 0000000000000000 R11: 0000000000000202 R12: 00007efcd612bbf0 [ 61.974701] R13: 00007ffc12950030 R14: 0000000000000000 R15: 00000000000000f8 [ 61.975652] [ 61.975955] irq event stamp: 13405 [ 61.976422] hardirqs last enabled at (13417): [] __up_console_sem+0x78/0x80 [ 61.977488] hardirqs last disabled at (13428): [] __up_console_sem+0x5d/0x80 [ 61.978563] softirqs last enabled at (13104): [] irq_exit_rcu+0x93/0xc0 [ 61.979617] softirqs last disabled at (13099): [] irq_exit_rcu+0x93/0xc0 [ 61.980644] ---[ end trace 0000000000000000 ]--- executing program [ 63.529765] Bluetooth: hci0: command 0x0409 tx timeout [ 65.577278] Bluetooth: hci0: command 0x041b tx timeout executing program [ 67.625195] Bluetooth: hci0: command 0x040f tx timeout executing program [ 69.673190] Bluetooth: hci0: command 0x0419 tx timeout executing program VM DIAGNOSIS: 21:13:42 Registers: info registers vcpu 0 RAX=000000000002278b 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=00007f75e3bbca80 CR3=0000000015d62000 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=0f23cc18404256b04449fa45e41d7f7b XMM02=6b1e99b806172e3b00000000000aea28 XMM03=ac8bc31478ec851100000000000aefa0 XMM04=c3a8905a47baecd9000000000013ca70 XMM05=d3fdd5f48436fbd700000000000aead0 XMM06=a51fc129eb19d53500000000000ae988 XMM07=a1fcdcf819d7e1e500000000000ae728 XMM08=44495f474f4c5359530069253d595449 XMM09=00000000000000000000000000000000 XMM10=00000000000000000020202000000000 XMM11=00000000000000000000000000000000 XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 info registers vcpu 1 RAX=0000000000000031 RBX=00000000000003f8 RCX=0000000000000000 RDX=00000000000003f8 RSI=ffffffff82507685 RDI=ffffffff87f27c00 RBP=ffffffff87f27bc0 RSP=ffff8880142cf5e0 R8 =0000000000000001 R9 =000000000000000a R10=0000000000000031 R11=0000000000000001 R12=0000000000000031 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 0000555555ca6400 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=00007f8bc85f16f4 CR3=000000000ddec000 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