syzkaller login: [ 50.039151][ T31] kauditd_printk_skb: 5 callbacks suppressed [ 50.040798][ T31] audit: type=1400 audit(49.950:68): avc: denied { read write } for pid=2995 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 [ 50.102512][ T31] audit: type=1400 audit(50.010:69): avc: denied { open } for pid=2995 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 [ 64.563373][ T1161] aoe: packet could not be sent on bond0. consider increasing tx_queue_len [ 64.564581][ T1161] aoe: packet could not be sent on teql0. consider increasing tx_queue_len [ 64.565297][ T1161] aoe: packet could not be sent on tunl0. consider increasing tx_queue_len [ 64.565684][ T1161] aoe: packet could not be sent on gre0. consider increasing tx_queue_len [ 64.566041][ T1161] aoe: packet could not be sent on gretap0. consider increasing tx_queue_len [ 64.566398][ T1161] aoe: packet could not be sent on erspan0. consider increasing tx_queue_len [ 64.566764][ T1161] aoe: packet could not be sent on ip_vti0. consider increasing tx_queue_len [ 64.567126][ T1161] aoe: packet could not be sent on ip6_vti0. consider increasing tx_queue_len [ 64.567496][ T1161] aoe: packet could not be sent on sit0. consider increasing tx_queue_len [ 64.567823][ T1161] aoe: packet could not be sent on ip6tnl0. consider increasing tx_queue_len Warning: Permanently added '[localhost]:16645' (ED25519) to the list of known hosts. [ 88.312189][ T31] audit: type=1400 audit(88.220:70): avc: denied { execute } for pid=3004 comm="sh" name="syz-executor2476057106" dev="vda" ino=682 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:etc_runtime_t tclass=file permissive=1 [ 88.322417][ T31] audit: type=1400 audit(88.230:71): avc: denied { execute_no_trans } for pid=3004 comm="sh" path="/syz-executor2476057106" dev="vda" ino=682 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:etc_runtime_t tclass=file permissive=1 [ 88.948780][ T31] audit: type=1400 audit(88.860:72): avc: denied { execmem } for pid=3004 comm="syz-executor247" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 89.066781][ T31] audit: type=1400 audit(88.980:73): avc: denied { create } for pid=3005 comm="syz-executor247" anonclass=[userfaultfd] scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:sysadm_t tclass=anon_inode permissive=1 [ 89.070221][ T31] audit: type=1400 audit(88.980:74): avc: denied { ioctl } for pid=3005 comm="syz-executor247" path="anon_inode:[userfaultfd]" dev="anon_inodefs" ino=1863 ioctlcmd=0xaa3f scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:sysadm_t tclass=anon_inode permissive=1 executing program [ 89.685127][ T3005] ------------[ cut here ]------------ [ 89.685699][ T3005] WARNING: CPU: 1 PID: 3005 at mm/highmem.c:611 kunmap_local_indexed+0x20c/0x224 [ 89.687108][ T3005] Modules linked in: [ 89.687757][ T3005] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 89.688765][ T3005] CPU: 1 PID: 3005 Comm: syz-executor247 Not tainted 6.10.0-rc2-syzkaller #0 [ 89.689898][ T3005] Hardware name: ARM-Versatile Express [ 89.690779][ T3005] Call trace: [ 89.691214][ T3005] [<818d4178>] (dump_backtrace) from [<818d4274>] (show_stack+0x18/0x1c) [ 89.692275][ T3005] r7:00000000 r6:82622d44 r5:00000000 r4:81fe12b8 [ 89.693126][ T3005] [<818d425c>] (show_stack) from [<818f189c>] (dump_stack_lvl+0x54/0x7c) [ 89.693711][ T3005] [<818f1848>] (dump_stack_lvl) from [<818f18dc>] (dump_stack+0x18/0x1c) [ 89.694959][ T3005] r5:00000000 r4:8285fd18 [ 89.695710][ T3005] [<818f18c4>] (dump_stack) from [<818d4d1c>] (panic+0x120/0x358) [ 89.696376][ T3005] [<818d4bfc>] (panic) from [<80243dcc>] (print_tainted+0x0/0xa0) [ 89.696901][ T3005] r3:8260c5c4 r2:00000001 r1:81fc9f28 r0:81fd1b78 [ 89.697230][ T3005] r7:80481370 [ 89.697429][ T3005] [<80243d58>] (check_panic_on_warn) from [<80243fc0>] (__warn+0x7c/0x180) [ 89.697797][ T3005] [<80243f44>] (__warn) from [<8024423c>] (warn_slowpath_fmt+0x178/0x1f4) [ 89.698889][ T3005] r8:00000009 r7:81ff8910 r6:df981d14 r5:840e4800 r4:00000000 [ 89.699416][ T3005] [<802440c8>] (warn_slowpath_fmt) from [<80481370>] (kunmap_local_indexed+0x20c/0x224) [ 89.700040][ T3005] r10:ffedc0a8 r9:84139b00 r8:20508000 r7:fffffffe r6:00000003 r5:840e4800 [ 89.700484][ T3005] r4:ffedc000 [ 89.700819][ T3005] [<80481164>] (kunmap_local_indexed) from [<804f2bf8>] (move_pages+0x7e8/0x14a0) [ 89.701820][ T3005] r7:fffffffe r6:00000000 r5:84633810 r4:ffeda840 [ 89.702162][ T3005] [<804f2410>] (move_pages) from [<8056b0f8>] (userfaultfd_ioctl+0x1278/0x2314) [ 89.702849][ T3005] r10:20c16000 r9:df981e98 r8:20000080 r7:84139b00 r6:00000001 r5:00000000 [ 89.703182][ T3005] r4:844e1000 [ 89.703437][ T3005] [<80569e80>] (userfaultfd_ioctl) from [<8051a69c>] (sys_ioctl+0x134/0xda4) [ 89.704336][ T3005] r10:840e4800 r9:00000003 r8:844d2c00 r7:20000080 r6:844d2c00 r5:00000000 [ 89.704696][ T3005] r4:c028aa05 [ 89.704889][ T3005] [<8051a568>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x1c) [ 89.705583][ T3005] Exception stack(0xdf981fa8 to 0xdf981ff0) [ 89.706571][ T3005] 1fa0: ffffffff 00000000 00000003 c028aa05 20000080 0000011a [ 89.707002][ T3005] 1fc0: ffffffff 00000000 0008e058 00000036 000f4240 00000000 00000001 00003a97 [ 89.707390][ T3005] 1fe0: 7ea81c70 7ea81c60 00010720 0002e880 [ 89.708204][ T3005] r10:00000036 r9:840e4800 r8:8020029c r7:00000036 r6:0008e058 r5:00000000 [ 89.709105][ T3005] r4:ffffffff [ 89.710594][ T3005] Rebooting in 86400 seconds.. VM DIAGNOSIS: 08:19:11 Registers: info registers vcpu 0 CPU#0 R00=00000000 R01=81fe12b8 R02=0004bef1 R03=8021b4c0 R04=8261ad80 R05=8260c5d0 R06=00000000 R07=8260c5f8 R08=00000000 R09=00000000 R10=00000000 R11=82601f34 R12=82601f38 R13=82601f28 R14=80208978 R15=8021b4c8 PSR=60000093 -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=00000000 s17=00000000 d08=0000000000000000 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 info registers vcpu 1 CPU#1 R00=8412d840 R01=00000039 R02=eb947000 R03=eb947018 R04=828622a1 R05=8412d840 R06=809b14e0 R07=828622d3 R08=82862298 R09=0000003c R10=60000093 R11=df981a74 R12=00000002 R13=df981a68 R14=827531c0 R15=809b14f0 PSR=80000093 N--- 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=005527e9 s17=00000000 d08=00000000005527e9 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=d3252772 s33=98d3f13f d16=98d3f13fd3252772 s34=382ff8a0 s35=6616776d d17=6616776d382ff8a0 s36=1fa10d19 s37=24c2dac6 d18=24c2dac61fa10d19 s38=be422a72 s39=dab9ba0c d19=dab9ba0cbe422a72 s40=fa3f9a64 s41=dca47515 d20=dca47515fa3f9a64 s42=3fb8bbd6 s43=b48dac1c d21=b48dac1c3fb8bbd6 s44=6110539d s45=7ccc54ef d22=7ccc54ef6110539d s46=a9600eb9 s47=1d6d0842 d23=1d6d0842a9600eb9 s48=00000001 s49=00000000 d24=0000000000000001 s50=00000000 s51=00000000 d25=0000000000000000 s52=5e43d1bb s53=b716fd61 d26=b716fd615e43d1bb s54=0b9270b8 s55=99f61d1f d27=99f61d1f0b9270b8 s56=0a0d51e3 s57=c8e64fe2 d28=c8e64fe20a0d51e3 s58=0ef66732 s59=0c98f770 d29=0c98f7700ef66732 s60=ac7d73fe s61=479d34fd d30=479d34fdac7d73fe s62=00000069 s63=00000068 d31=0000006800000069 FPSCR: 00000000