syzkaller login: [ 43.286414][ T31] kauditd_printk_skb: 5 callbacks suppressed [ 43.286467][ T31] audit: type=1400 audit(43.220:68): avc: denied { read write } for pid=2994 comm="sftp-server" name="null" dev="devtmpfs" ino=4 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 43.287697][ T31] audit: type=1400 audit(43.220:69): avc: denied { open } for pid=2994 comm="sftp-server" path="/dev/null" dev="devtmpfs" ino=4 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 64.548584][ T1161] aoe: packet could not be sent on bond0. consider increasing tx_queue_len [ 64.549677][ T1161] aoe: packet could not be sent on teql0. consider increasing tx_queue_len [ 64.550235][ T1161] aoe: packet could not be sent on tunl0. consider increasing tx_queue_len [ 64.550557][ T1161] aoe: packet could not be sent on gre0. consider increasing tx_queue_len [ 64.550855][ T1161] aoe: packet could not be sent on gretap0. consider increasing tx_queue_len [ 64.551163][ T1161] aoe: packet could not be sent on erspan0. consider increasing tx_queue_len [ 64.551473][ T1161] aoe: packet could not be sent on ip_vti0. consider increasing tx_queue_len [ 64.551783][ T1161] aoe: packet could not be sent on ip6_vti0. consider increasing tx_queue_len [ 64.552081][ T1161] aoe: packet could not be sent on sit0. consider increasing tx_queue_len [ 64.552376][ T1161] aoe: packet could not be sent on ip6tnl0. consider increasing tx_queue_len Warning: Permanently added '[localhost]:53873' (ED25519) to the list of known hosts. [ 86.172279][ T31] audit: type=1400 audit(86.080:70): avc: denied { execute } for pid=3003 comm="sh" name="syz-executor2964350080" dev="vda" ino=682 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:etc_runtime_t tclass=file permissive=1 [ 86.206590][ T31] audit: type=1400 audit(86.140:71): avc: denied { execute_no_trans } for pid=3003 comm="sh" path="/syz-executor2964350080" dev="vda" ino=682 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:etc_runtime_t tclass=file permissive=1 [ 86.636427][ T31] audit: type=1400 audit(86.570:72): avc: denied { execmem } for pid=3003 comm="syz-executor296" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 executing program [ 86.752072][ T31] audit: type=1400 audit(86.680:73): avc: denied { mount } for pid=3004 comm="syz-executor296" name="/" dev="tmpfs" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:tmpfs_t tclass=filesystem permissive=1 [ 86.765796][ T31] audit: type=1400 audit(86.690:74): avc: denied { create } for pid=3004 comm="syz-executor296" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_netfilter_socket permissive=1 [ 86.958885][ T3004] ------------[ cut here ]------------ [ 86.960044][ T3004] WARNING: CPU: 0 PID: 3004 at lib/string_helpers.c:1029 __fortify_report+0x6c/0x74 [ 86.963321][ T3004] strnlen: detected buffer overflow: 17 byte read of buffer size 16 [ 86.963687][ T3004] Modules linked in: [ 86.966106][ T3004] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 86.966702][ T3004] CPU: 0 PID: 3004 Comm: syz-executor296 Not tainted 6.9.0-syzkaller #0 [ 86.967049][ T3004] Hardware name: ARM-Versatile Express [ 86.967326][ T3004] Call trace: [ 86.967605][ T3004] [<818df678>] (dump_backtrace) from [<818df774>] (show_stack+0x18/0x1c) [ 86.968023][ T3004] r7:00000000 r6:82622e04 r5:00000000 r4:81fe2534 [ 86.968227][ T3004] [<818df75c>] (show_stack) from [<818fcdd8>] (dump_stack_lvl+0x54/0x7c) [ 86.968465][ T3004] [<818fcd84>] (dump_stack_lvl) from [<818fce18>] (dump_stack+0x18/0x1c) [ 86.968721][ T3004] r5:00000000 r4:82860d18 [ 86.968851][ T3004] [<818fce00>] (dump_stack) from [<818e021c>] (panic+0x120/0x358) [ 86.969123][ T3004] [<818e00fc>] (panic) from [<80243d54>] (print_tainted+0x0/0xa0) [ 86.969377][ T3004] r3:8260c5c4 r2:00000001 r1:81fcb130 r0:81fd2d44 [ 86.969553][ T3004] r7:8080fe7c [ 86.969677][ T3004] [<80243ce0>] (check_panic_on_warn) from [<80243f48>] (__warn+0x7c/0x180) [ 86.969897][ T3004] [<80243ecc>] (__warn) from [<80244234>] (warn_slowpath_fmt+0x1e8/0x1f4) [ 86.970106][ T3004] r8:00000009 r7:8202fe0c r6:df969db4 r5:836e6c00 r4:00000000 [ 86.970339][ T3004] [<80244050>] (warn_slowpath_fmt) from [<8080fe7c>] (__fortify_report+0x6c/0x74) [ 86.970575][ T3004] r10:8271c1c8 r9:00000005 r8:df969ec3 r7:8372e000 r6:00000000 r5:836be478 [ 86.970836][ T3004] r4:82e27000 [ 86.970961][ T3004] [<8080fe10>] (__fortify_report) from [<818e9a40>] (__fortify_panic+0x10/0x14) [ 86.971175][ T3004] [<818e9a30>] (__fortify_panic) from [<8062a3b0>] (ext4_fileattr_get+0x0/0x78) [ 86.971403][ T3004] [<8062829c>] (__ext4_ioctl) from [<8062aaac>] (ext4_ioctl+0x10/0x14) [ 86.971601][ T3004] r10:836e6c00 r9:00000005 r8:845e7900 r7:00000000 r6:845e7900 r5:00000000 [ 86.971807][ T3004] r4:81009431 [ 86.971893][ T3004] [<8062aa9c>] (ext4_ioctl) from [<80518930>] (sys_ioctl+0x134/0xda4) [ 86.972140][ T3004] [<805187fc>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x1c) [ 86.972385][ T3004] Exception stack(0xdf969fa8 to 0xdf969ff0) [ 86.972695][ T3004] 9fa0: 00000000 00000000 00000005 81009431 00000000 00000000 [ 86.973050][ T3004] 9fc0: 00000000 00000000 0008e060 00000036 000f4240 00000000 00000001 00003a97 [ 86.973314][ T3004] 9fe0: 7e98ac70 7e98ac60 00010764 0002e8c0 [ 86.973550][ T3004] r10:00000036 r9:836e6c00 r8:8020029c r7:00000036 r6:0008e060 r5:00000000 [ 86.973802][ T3004] r4:00000000 [ 86.975662][ T3004] Rebooting in 86400 seconds.. VM DIAGNOSIS: 10:52:30 Registers: info registers vcpu 0 CPU#0 R00=00000000 R01=81fe2534 R02=00000000 R03=818feb6c R04=826f59c8 R05=826f59c0 R06=00000028 R07=00000006 R08=826f59c8 R09=00000000 R10=81fd2c54 R11=df969ba4 R12=df969ba8 R13=df969b98 R14=818fd7fc R15=818feb7c PSR=80000093 N--- A S svc32 s00=6a9da18d s01=2325b608 d00=2325b6086a9da18d s02=51739c95 s03=ef4a1965 d01=ef4a196551739c95 s04=c2615434 s05=aab8eecb d02=aab8eecbc2615434 s06=790f046c s07=b0731ac7 d03=b0731ac7790f046c s08=a052242b s09=61ae3dfb d04=61ae3dfba052242b s10=6efa348a s11=fa07c893 d05=fa07c8936efa348a s12=fee6f0fc s13=275edb25 d06=275edb25fee6f0fc s14=0394ac82 s15=822726be d07=822726be0394ac82 s16=0fad5fb4 s17=3573155e d08=3573155e0fad5fb4 s18=bc5ed093 s19=2dfded94 d09=2dfded94bc5ed093 s20=043370bb s21=dd237ff4 d10=dd237ff4043370bb s22=22e786a1 s23=599f1a55 d11=599f1a5522e786a1 s24=739620f9 s25=0c5571b4 d12=0c5571b4739620f9 s26=c10d33bf s27=9e653e01 d13=9e653e01c10d33bf s28=748f82ee s29=78a5636f d14=78a5636f748f82ee s30=84c87814 s31=8cc70208 d15=8cc7020884c87814 s32=90befffa s33=a4506ceb d16=a4506ceb90befffa s34=bef9a3f7 s35=c67178f2 d17=c67178f2bef9a3f7 s36=14e1a719 s37=da53a16a d18=da53a16a14e1a719 s38=f3c2ac9e s39=86ceca9b d19=86ceca9bf3c2ac9e s40=8fa5f0f6 s41=cbaf4810 d20=cbaf48108fa5f0f6 s42=c28e5079 s43=48989fb0 d21=48989fb0c28e5079 s44=d61f5da3 s45=318e3ef5 d22=318e3ef5d61f5da3 s46=bc1482a7 s47=e5e19f18 d23=e5e19f18bc1482a7 s48=bc55430f s49=a12fb148 d24=a12fb148bc55430f s50=c9afa7d2 s51=b5ac5c81 d25=b5ac5c81c9afa7d2 s52=6c15773c s53=76269070 d26=762690706c15773c s54=7fa58f35 s55=4091a9de d27=4091a9de7fa58f35 s56=6b46f090 s57=062a48bc d28=062a48bc6b46f090 s58=aa2bce27 s59=59cb8f68 d29=59cb8f68aa2bce27 s60=7a22d7b8 s61=bb239327 d30=bb2393277a22d7b8 s62=3d1aeaa8 s63=7c723e42 d31=7c723e423d1aeaa8 FPSCR: 00000000 info registers vcpu 1 CPU#1 R00=84221c40 R01=011bd506 R02=00000000 R03=35392e36 R04=00000056 R05=ec565ea8 R06=b5403587 R07=84221c00 R08=011bd4b0 R09=00000000 R10=843fb240 R11=ec565dbc R12=0000002d R13=ec565dc0 R14=2d2d2d2d R15=8168dee4 PSR=60000013 -ZC- A S svc32 s00=00000000 s01=00000000 d00=0000000000000000 s02=00000000 s03=00000000 d01=0000000000000000 s04=00000000 s05=00000000 d02=0000000000000000 s06=00000000 s07=00000000 d03=0000000000000000 s08=00000000 s09=00000000 d04=0000000000000000 s10=00000000 s11=00000000 d05=0000000000000000 s12=00000000 s13=00000000 d06=0000000000000000 s14=00000000 s15=00000000 d07=0000000000000000 s16=76f6a21a s17=00000000 d08=0000000076f6a21a s18=00000000 s19=00000000 d09=0000000000000000 s20=00000000 s21=00000000 d10=0000000000000000 s22=00000000 s23=00000000 d11=0000000000000000 s24=00000000 s25=00000000 d12=0000000000000000 s26=00000000 s27=00000000 d13=0000000000000000 s28=00000000 s29=00000000 d14=0000000000000000 s30=00000000 s31=00000000 d15=0000000000000000 s32=00000000 s33=00000000 d16=0000000000000000 s34=00000000 s35=00000000 d17=0000000000000000 s36=00000000 s37=00000000 d18=0000000000000000 s38=00000000 s39=00000000 d19=0000000000000000 s40=00000000 s41=00000000 d20=0000000000000000 s42=00000000 s43=00000000 d21=0000000000000000 s44=00000000 s45=00000000 d22=0000000000000000 s46=00000000 s47=00000000 d23=0000000000000000 s48=00000000 s49=00000000 d24=0000000000000000 s50=00000000 s51=00000000 d25=0000000000000000 s52=00000000 s53=00000000 d26=0000000000000000 s54=00000000 s55=00000000 d27=0000000000000000 s56=00000000 s57=00000000 d28=0000000000000000 s58=00000000 s59=00000000 d29=0000000000000000 s60=00000000 s61=00000000 d30=0000000000000000 s62=00000000 s63=00000000 d31=0000000000000000 FPSCR: 00000000