[ 52.939446][ T31] audit: type=1400 audit(52.860:68): avc: denied { read write } for pid=2996 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 [ 52.941014][ T31] audit: type=1400 audit(52.860:69): avc: denied { open } for pid=2996 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 Warning: Permanently added '[localhost]:1525' (ED25519) to the list of known hosts. [ 97.060587][ T31] audit: type=1400 audit(96.970:70): avc: denied { execute } for pid=3005 comm="sh" name="syz-executor57434816" dev="vda" ino=682 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:etc_runtime_t tclass=file permissive=1 [ 97.147480][ T31] audit: type=1400 audit(97.040:71): avc: denied { execute_no_trans } for pid=3005 comm="sh" path="/syz-executor57434816" dev="vda" ino=682 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:etc_runtime_t tclass=file permissive=1 [ 97.453745][ T31] audit: type=1400 audit(97.370:72): avc: denied { execmem } for pid=3005 comm="syz-executor574" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 executing program executing program executing program [ 97.909659][ T3010] usercopy: Kernel memory overwrite attempt detected to SLUB object 'task_struct' (offset 80, size 116)! [ 97.912268][ T3010] ------------[ cut here ]------------ [ 97.912752][ T3010] kernel BUG at mm/usercopy.c:102! [ 97.913055][ T3010] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP ARM [ 97.913574][ T3010] Modules linked in: [ 97.914615][ T3010] CPU: 1 PID: 3010 Comm: syz-executor574 Not tainted 6.10.0-rc5-syzkaller #0 [ 97.915475][ T3010] Hardware name: ARM-Versatile Express [ 97.917221][ T3010] PC is at usercopy_abort+0x98/0x9c [ 97.918209][ T3010] LR is at __wake_up_klogd.part.0+0x7c/0xac [ 97.918670][ T3010] pc : [<818db348>] lr : [<802bc47c>] psr: 60000013 [ 97.918931][ T3010] sp : df985d90 ip : df985cd8 fp : df985db4 [ 97.919214][ T3010] r10: 81a00568 r9 : 00000078 r8 : 83dc1850 [ 97.919460][ T3010] r7 : dde83f00 r6 : 00000000 r5 : 00000074 r4 : 00000050 [ 97.919744][ T3010] r3 : 8416d400 r2 : 00000000 r1 : 00000000 r0 : 00000066 [ 97.920101][ T3010] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none [ 97.920416][ T3010] Control: 30c5387d Table: 843ce280 DAC: 00000000 [ 97.921847][ T3010] Register r0 information: non-paged memory [ 97.922446][ T3010] Register r1 information: NULL pointer [ 97.922617][ T3010] Register r2 information: NULL pointer [ 97.922814][ T3010] Register r3 information: slab task_struct start 8416d400 pointer offset 0 size 3072 [ 97.923720][ T3010] Register r4 information: non-paged memory [ 97.924464][ T3010] Register r5 information: non-paged memory [ 97.924704][ T3010] Register r6 information: NULL pointer [ 97.924941][ T3010] Register r7 information: non-slab/vmalloc memory [ 97.925299][ T3010] Register r8 information: slab task_struct start 83dc1800 pointer offset 80 size 3072 [ 97.925701][ T3010] Register r9 information: non-paged memory [ 97.925945][ T3010] Register r10 information: non-slab/vmalloc memory [ 97.926186][ T3010] Register r11 information: 2-page vmalloc region starting at 0xdf984000 allocated at kernel_clone+0xac/0x3e4 [ 97.926620][ T3010] Register r12 information: 2-page vmalloc region starting at 0xdf984000 allocated at kernel_clone+0xac/0x3e4 [ 97.926990][ T3010] Process syz-executor574 (pid: 3010, stack limit = 0xdf984000) [ 97.927502][ T3010] Stack: (0xdf985d90 to 0xdf986000) [ 97.927768][ T3010] 5d80: 81fff420 81fd1ad8 81fe61b8 00000050 [ 97.928055][ T3010] 5da0: 00000074 00000078 df985de4 df985db8 804c0c00 818db2bc 00000074 df985dc8 [ 97.929616][ T3010] 5dc0: 802161c0 83dc1850 00000074 00000000 83dc18c4 dde83f00 df985e1c df985de8 [ 97.929951][ T3010] 5de0: 804f91e4 804c0b34 00000074 20000084 df985e0c 83dc1850 00000074 20000084 [ 97.930293][ T3010] 5e00: 00000074 81a005a0 00000078 81a00568 df985e4c df985e20 80209d80 804f8f5c [ 97.930599][ T3010] 5e20: 804e3ba8 818f3e08 df985e54 df985e38 80480f00 80209cf0 83dc1800 20000084 [ 97.930902][ T3010] 5e40: df985ef4 df985e50 8025455c 80209cfc 00000000 20000000 20000000 81a0057c [ 97.931244][ T3010] 5e60: 818ff8e0 00000000 df985eb4 df985e78 8020d074 8020bfec 8020c004 00000000 [ 97.931561][ T3010] 5e80: 80280128 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 97.931865][ T3010] 5ea0: 00000000 8416d400 df985edc df985eb8 8027e6bc 802ae26c 80282830 00000000 [ 97.932209][ T3010] 5ec0: 00000000 4c35cf55 83dc1800 20000080 00004202 00000002 00000000 20000080 [ 97.932522][ T3010] 5ee0: 8416d400 0000001a df985f6c df985ef8 8020a1b4 80254254 83dc1800 83dc2084 [ 97.932823][ T3010] 5f00: df985f1c df985f10 818ffd8c 8027ccbc df985f6c df985f20 80282990 818ffd68 [ 97.933143][ T3010] 5f20: df985f54 00000000 8027e6bc 60000013 818ad610 818c48c4 df985f54 4c35cf55 [ 97.933448][ T3010] 5f40: 83dc1800 00004205 83dc1800 4c35cf55 00004205 83dc1800 00000002 00000000 [ 97.933951][ T3010] 5f60: df985fa4 df985f70 80253f00 8020a110 80216088 4c35cf55 00000000 00000000 [ 97.935113][ T3010] 5f80: 00000000 0008e050 0000001a 8020029c 8416d400 0000001a 00000000 df985fa8 [ 97.935617][ T3010] 5fa0: 80200060 80253cd4 00000000 00000000 00004205 00000bc3 00000002 20000080 [ 97.936164][ T3010] 5fc0: 00000000 00000000 0008e050 0000001a 00000000 7e941c84 00002710 00000000 [ 97.936663][ T3010] 5fe0: 7e941c70 7e941c60 00010650 0002e7a0 00000010 00004205 00000000 00000000 [ 97.937390][ T3010] Call trace: [ 97.937900][ T3010] [<818db2b0>] (usercopy_abort) from [<804c0c00>] (__check_heap_object+0xd8/0xf4) [ 97.938798][ T3010] [<804c0b28>] (__check_heap_object) from [<804f91e4>] (__check_object_size+0x294/0x310) [ 97.940253][ T3010] r8:dde83f00 r7:83dc18c4 r6:00000000 r5:00000074 r4:83dc1850 [ 97.940797][ T3010] [<804f8f50>] (__check_object_size) from [<80209d80>] (fpa_set+0x90/0x118) [ 97.941705][ T3010] r10:81a00568 r9:00000078 r8:81a005a0 r7:00000074 r6:20000084 r5:00000074 [ 97.942164][ T3010] r4:83dc1850 [ 97.942366][ T3010] [<80209cf0>] (fpa_set) from [<8025455c>] (ptrace_request+0x314/0xa70) [ 97.942849][ T3010] r6:20000084 r5:83dc1800 r4:80209cf0 [ 97.943183][ T3010] [<80254248>] (ptrace_request) from [<8020a1b4>] (arch_ptrace+0xb0/0x424) [ 97.943907][ T3010] r10:0000001a r9:8416d400 r8:20000080 r7:00000000 r6:00000002 r5:00004202 [ 97.944621][ T3010] r4:20000080 [ 97.944825][ T3010] [<8020a104>] (arch_ptrace) from [<80253f00>] (sys_ptrace+0x238/0x4e0) [ 97.945303][ T3010] r7:00000000 r6:00000002 r5:83dc1800 r4:00004205 [ 97.945604][ T3010] [<80253cc8>] (sys_ptrace) from [<80200060>] (ret_fast_syscall+0x0/0x1c) [ 97.946048][ T3010] Exception stack(0xdf985fa8 to 0xdf985ff0) [ 97.946356][ T3010] 5fa0: 00000000 00000000 00004205 00000bc3 00000002 20000080 [ 97.946714][ T3010] 5fc0: 00000000 00000000 0008e050 0000001a 00000000 7e941c84 00002710 00000000 [ 97.947093][ T3010] 5fe0: 7e941c70 7e941c60 00010650 0002e7a0 [ 97.947464][ T3010] r10:0000001a r9:8416d400 r8:8020029c r7:0000001a r6:0008e050 r5:00000000 [ 97.947826][ T3010] r4:00000000 [ 97.948409][ T3010] Code: e30f0424 e34801ff e58dc000 ebfff359 (e7f001f2) [ 97.949220][ T3010] ---[ end trace 0000000000000000 ]--- [ 97.949888][ T3010] Kernel panic - not syncing: Fatal exception [ 97.951938][ T3010] Rebooting in 86400 seconds.. VM DIAGNOSIS: 19:07:35 Registers: info registers vcpu 0 CPU#0 R00=827b0a70 R01=81fe15cc R02=00000000 R03=818f4674 R04=828a3680 R05=00004be2 R06=00004be2 R07=95a68a00 R08=00000000 R09=8261ad80 R10=00000000 R11=82601e2c R12=82601e30 R13=82601e20 R14=811ad47c R15=818f4684 PSR=60000193 -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=005027e9 s17=00000000 d08=00000000005027e9 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=df8b1e79 s33=eb7167ac d16=eb7167acdf8b1e79 s34=204f29c9 s35=336400b4 d17=336400b4204f29c9 s36=acced0dd s37=c0c0b699 d18=c0c0b699acced0dd s38=17dbe7d2 s39=f610ed98 d19=f610ed9817dbe7d2 s40=5b0879f3 s41=5acb1949 d20=5acb19495b0879f3 s42=df9d24c3 s43=cd45187e d21=cd45187edf9d24c3 s44=15a7e85f s45=1435c3f8 d22=1435c3f815a7e85f s46=71e099b8 s47=d2c89f38 d23=d2c89f3871e099b8 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 info registers vcpu 1 CPU#1 R00=81fe15cc R01=8416d400 R02=00400040 R03=00000000 R04=81fe15cc R05=81fe15cc R06=827e5ae7 R07=82860150 R08=00000001 R09=00000bc2 R10=8416d400 R11=df985c14 R12=00000000 R13=df985bb0 R14=818a8d2c R15=8026abb4 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