[ 36.641077][ T31] audit: type=1400 audit(36.580:58): avc: denied { read write } for pid=3091 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 [ 36.642143][ T31] audit: type=1400 audit(36.590:59): avc: denied { open } for pid=3091 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]:58962' (ED25519) to the list of known hosts. [ 70.846244][ T31] audit: type=1400 audit(70.790:60): avc: denied { execute } for pid=3103 comm="sh" name="syz-executor1037942025" dev="vda" ino=807 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:etc_runtime_t tclass=file permissive=1 [ 70.861487][ T31] audit: type=1400 audit(70.800:61): avc: denied { execute_no_trans } for pid=3103 comm="sh" path="/syz-executor1037942025" dev="vda" ino=807 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:etc_runtime_t tclass=file permissive=1 [ 71.623311][ T31] audit: type=1400 audit(71.570:62): avc: denied { execmem } for pid=3103 comm="syz-executor103" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 71.640300][ T31] audit: type=1400 audit(71.580:63): avc: denied { create } for pid=3104 comm="syz-executor103" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=sctp_socket permissive=1 [ 71.641436][ T31] audit: type=1400 audit(71.580:64): avc: denied { allowed } for pid=3104 comm="syz-executor103" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=io_uring permissive=1 [ 71.644993][ T31] audit: type=1400 audit(71.590:65): avc: denied { create } for pid=3104 comm="syz-executor103" anonclass=[io_uring] scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:sysadm_t tclass=anon_inode permissive=1 executing program [ 71.648751][ T31] audit: type=1400 audit(71.590:66): avc: denied { map } for pid=3104 comm="syz-executor103" path="anon_inode:[io_uring]" dev="anon_inodefs" ino=1840 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:sysadm_t tclass=anon_inode permissive=1 [ 71.649116][ T31] audit: type=1400 audit(71.590:67): avc: denied { read write } for pid=3104 comm="syz-executor103" path="anon_inode:[io_uring]" dev="anon_inodefs" ino=1840 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:sysadm_t tclass=anon_inode permissive=1 [ 71.660059][ T3104] 8<--- cut here --- [ 71.661968][ T3104] Unable to handle kernel NULL pointer dereference at virtual address 0000000e when read [ 71.662669][ T3104] [0000000e] *pgd=849b1003, *pmd=df115003 [ 71.663905][ T31] audit: type=1400 audit(71.610:68): avc: denied { read } for pid=2908 comm="syslogd" name="log" dev="vda" ino=795 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:var_t tclass=lnk_file permissive=1 [ 71.665126][ T31] audit: type=1400 audit(71.610:69): avc: denied { search } for pid=2908 comm="syslogd" name="/" dev="tmpfs" ino=1 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 71.667979][ T3104] Internal error: Oops: 205 [#1] SMP ARM [ 71.668433][ T3104] Modules linked in: [ 71.669004][ T3104] CPU: 1 UID: 0 PID: 3104 Comm: syz-executor103 Not tainted 6.15.0-rc5-syzkaller #0 PREEMPT [ 71.669457][ T3104] Hardware name: ARM-Versatile Express [ 71.669729][ T3104] PC is at io_ring_buffers_peek+0x24/0x258 [ 71.670577][ T3104] LR is at io_buffers_peek+0x68/0x8c [ 71.670994][ T3104] pc : [<8088956c>] lr : [<80889cb0>] psr: 20000013 [ 71.671376][ T3104] sp : df971dc0 ip : df971e08 fp : df971e04 [ 71.671639][ T3104] r10: 00000242 r9 : 00000000 r8 : 8499d580 [ 71.671881][ T3104] r7 : 8498780c r6 : 84987800 r5 : df971e44 r4 : 84990000 [ 71.672124][ T3104] r3 : 00000001 r2 : 8498780c r1 : df971e44 r0 : 84990000 [ 71.672395][ T3104] Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none [ 71.672640][ T3104] Control: 30c5387d Table: 8499d100 DAC: 00000000 [ 71.672883][ T3104] Register r0 information: slab io_kiocb start 84990000 pointer offset 0 size 192 [ 71.673652][ T3104] Register r1 information: 2-page vmalloc region starting at 0xdf970000 allocated at kernel_clone+0xac/0x3e4 [ 71.674128][ T3104] Register r2 information: slab kmalloc-256 start 84987800 pointer offset 12 size 256 [ 71.674577][ T3104] Register r3 information: non-paged memory [ 71.674864][ T3104] Register r4 information: slab io_kiocb start 84990000 pointer offset 0 size 192 [ 71.675241][ T3104] Register r5 information: 2-page vmalloc region starting at 0xdf970000 allocated at kernel_clone+0xac/0x3e4 [ 71.675615][ T3104] Register r6 information: slab kmalloc-256 start 84987800 pointer offset 0 size 256 [ 71.676001][ T3104] Register r7 information: slab kmalloc-256 start 84987800 pointer offset 12 size 256 [ 71.676364][ T3104] Register r8 information: slab kmalloc-64 start 8499d580 pointer offset 0 size 64 [ 71.676674][ T3104] Register r9 information: NULL pointer [ 71.676854][ T3104] Register r10 information: non-paged memory [ 71.677045][ T3104] Register r11 information: 2-page vmalloc region starting at 0xdf970000 allocated at kernel_clone+0xac/0x3e4 [ 71.677364][ T3104] Register r12 information: 2-page vmalloc region starting at 0xdf970000 allocated at kernel_clone+0xac/0x3e4 [ 71.677705][ T3104] Process syz-executor103 (pid: 3104, stack limit = 0xdf970000) [ 71.678115][ T3104] Stack: (0xdf971dc0 to 0xdf972000) [ 71.678405][ T3104] 1dc0: 81a4be54 8030cb0c 8494e900 00000001 00010000 8498780c 00000000 84990000 [ 71.678655][ T3104] 1de0: df971e44 84987800 8498780c 00000000 80000001 00000242 df971e1c df971e08 [ 71.678885][ T3104] 1e00: 80889cb0 80889554 83752500 84990000 df971e84 df971e20 808931e0 80889c54 [ 71.679114][ T3104] 1e20: df971e4c df971e30 8089ec2c 8050a4c4 00010001 00000001 8057abbc 00000000 [ 71.679352][ T3104] 1e40: 00000000 8498780c 00000000 00000000 00010001 c805563e 80886a40 84990000 [ 71.679584][ T3104] 1e60: 81cf0ca0 00000000 80000001 81cf0b5c 0000001b 840ba400 df971ebc df971e88 [ 71.679818][ T3104] 1e80: 80886bd8 80892f38 849903c0 84990480 84990540 8494e800 8499006c 84990000 [ 71.680050][ T3104] 1ea0: 84920000 00000000 00000000 840ba400 df971f14 df971ec0 808877a8 80886b7c [ 71.680301][ T3104] 1ec0: 8088e164 81a4bdf8 849f3db8 8499d108 00000800 00000800 81cf0b5c 00000800 [ 71.680535][ T3104] 1ee0: 8494e800 c805563e 847d56c0 00000000 8494e800 00003516 847d56c0 00000000 [ 71.680880][ T3104] 1f00: 840ba400 00000000 df971fa4 df971f18 80888250 808875a8 df971f74 8494e840 [ 71.681236][ T3104] 1f20: 00000000 00000000 df971fac 847d56c0 00000003 00020000 df971f5c df971f48 [ 71.681547][ T3104] 1f40: 80553b94 844cd800 76f96000 8281d1f0 00000a0f 76f96000 df971fb0 80234108 [ 71.681781][ T3104] 1f60: 00000000 0008a270 df971fac df971f78 8023478c c805563e 000000c0 00000000 [ 71.682011][ T3104] 1f80: 00000000 0008e068 000001aa 8020029c 840ba400 000001aa 00000000 df971fa8 [ 71.682273][ T3104] 1fa0: 80200060 80888124 00000000 00000000 00000004 00003516 00000000 00000000 [ 71.682508][ T3104] 1fc0: 00000000 00000000 0008e068 000001aa 76fb6000 00000000 0008a270 00000001 [ 71.682780][ T3104] 1fe0: 7eb14c70 7eb14c60 00010860 0002f8f0 40000010 00000004 00000000 00000000 [ 71.683068][ T3104] Call trace: [ 71.683344][ T3104] [<80889548>] (io_ring_buffers_peek) from [<80889cb0>] (io_buffers_peek+0x68/0x8c) [ 71.683774][ T3104] r10:00000242 r9:80000001 r8:00000000 r7:8498780c r6:84987800 r5:df971e44 [ 71.684024][ T3104] r4:84990000 [ 71.684200][ T3104] [<80889c48>] (io_buffers_peek) from [<808931e0>] (io_recv+0x2b4/0x46c) [ 71.684442][ T3104] r5:84990000 r4:83752500 [ 71.684564][ T3104] [<80892f2c>] (io_recv) from [<80886bd8>] (io_issue_sqe+0x68/0x658) [ 71.684807][ T3104] r10:840ba400 r9:0000001b r8:81cf0b5c r7:80000001 r6:00000000 r5:81cf0ca0 [ 71.685026][ T3104] r4:84990000 [ 71.685133][ T3104] [<80886b70>] (io_issue_sqe) from [<808877a8>] (io_submit_sqes+0x20c/0x938) [ 71.685383][ T3104] r10:840ba400 r9:00000000 r8:00000000 r7:84920000 r6:84990000 r5:8499006c [ 71.685590][ T3104] r4:8494e800 [ 71.685691][ T3104] [<8088759c>] (io_submit_sqes) from [<80888250>] (sys_io_uring_enter+0x138/0x780) [ 71.685972][ T3104] r10:00000000 r9:840ba400 r8:00000000 r7:847d56c0 r6:00003516 r5:8494e800 [ 71.686209][ T3104] r4:00000000 [ 71.686347][ T3104] [<80888118>] (sys_io_uring_enter) from [<80200060>] (ret_fast_syscall+0x0/0x1c) [ 71.686614][ T3104] Exception stack(0xdf971fa8 to 0xdf971ff0) [ 71.686788][ T3104] 1fa0: 00000000 00000000 00000004 00003516 00000000 00000000 [ 71.687023][ T3104] 1fc0: 00000000 00000000 0008e068 000001aa 76fb6000 00000000 0008a270 00000001 [ 71.687261][ T3104] 1fe0: 7eb14c70 7eb14c60 00010860 0002f8f0 [ 71.687428][ T3104] r10:000001aa r9:840ba400 r8:8020029c r7:000001aa r6:0008e068 r5:00000000 [ 71.687642][ T3104] r4:00000000 [ 71.687902][ T3104] Code: e1a08002 e5912000 e50b2030 e1a05001 (e1d920be) [ 71.688885][ T3104] ---[ end trace 0000000000000000 ]--- [ 71.689836][ T3104] Kernel panic - not syncing: Fatal exception [ 71.691992][ T3104] Rebooting in 86400 seconds.. VM DIAGNOSIS: 13:17:02 Registers: info registers vcpu 0 CPU#0 R00=00000000 R01=00000000 R02=00000004 R03=81a50408 R04=00000006 R05=828fac48 R06=00000000 R07=828fac40 R08=83258c00 R09=00000028 R10=828fac48 R11=df8dde04 R12=df8dde08 R13=df8dddf8 R14=803481f4 R15=81a50418 PSR=600f0093 -ZC- A S svc32 s00=72656820 s01=2d2d2065 d00=2d2d206572656820 s02=00000000 s03=00000000 d01=0000000000000000 s04=ef0cee00 s05=ef0cee00 d02=ef0cee00ef0cee00 s06=08040200 s07=80402000 d03=8040200008040200 s08=00000c00 s09=c0200c03 d04=c0200c0300000c00 s10=08040201 s11=80402000 d05=8040200008040201 s12=08040201 s13=80402010 d06=8040201008040201 s14=08040201 s15=80402010 d07=8040201008040201 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=00000003 R01=7efd1858 R02=00000105 R03=00004000 R04=00000000 R05=00000000 R06=7efd1858 R07=00000121 R08=7efd1858 R09=000000ea R10=00000105 R11=00000000 R12=00000001 R13=7efd1770 R14=00000000 R15=76dfa590 PSR=20090010 --C- A S usr32 s00=72657020 s01=7373696d d00=7373696d72657020 s02=755f6d65 s03=6a626f3a d01=6a626f3a755f6d65 s04=65747379 s05=3a755f6d d02=3a755f6d65747379 s06=74737973 s07=725f6d65 d03=725f6d6574737973 s08=7379733a s09=64676f6c d04=64676f6c7379733a s10=7420745f s11=746e6f63 d05=746e6f637420745f s12=3d747865 s13=74737973 d06=747379733d747865 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