syzkaller login: [ 75.365130][ T31] kauditd_printk_skb: 6 callbacks suppressed [ 75.365565][ T31] audit: type=1400 audit(75.290:58): avc: denied { read write } for pid=3093 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 [ 75.365894][ T31] audit: type=1400 audit(75.290:59): avc: denied { open } for pid=3093 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]:9041' (ED25519) to the list of known hosts. [ 107.496643][ T31] audit: type=1400 audit(107.420:60): avc: denied { execute } for pid=3105 comm="sh" name="syz-executor50926218" dev="vda" ino=807 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:etc_runtime_t tclass=file permissive=1 [ 107.500755][ T31] audit: type=1400 audit(107.430:61): avc: denied { execute_no_trans } for pid=3105 comm="sh" path="/syz-executor50926218" dev="vda" ino=807 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:etc_runtime_t tclass=file permissive=1 [ 107.931562][ T31] audit: type=1400 audit(107.850:62): avc: denied { execmem } for pid=3105 comm="syz-executor509" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 108.097307][ T31] audit: type=1400 audit(108.010:63): avc: denied { prog_load } for pid=3106 comm="syz-executor509" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 executing program [ 108.112474][ T31] audit: type=1400 audit(108.040:64): avc: denied { bpf } for pid=3106 comm="syz-executor509" capability=39 scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=capability2 permissive=1 [ 108.112714][ T31] audit: type=1400 audit(108.040:65): avc: denied { perfmon } for pid=3106 comm="syz-executor509" capability=38 scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=capability2 permissive=1 [ 108.146623][ T3106] ------------[ cut here ]------------ [ 108.147882][ T3106] WARNING: CPU: 0 PID: 3106 at kernel/bpf/verifier.c:20723 bpf_check+0x2d58/0x2ed4 [ 108.155402][ T3106] Modules linked in: [ 108.160889][ T3106] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 108.165280][ T3106] CPU: 0 UID: 0 PID: 3106 Comm: syz-executor509 Not tainted 6.15.0-rc6-syzkaller #0 PREEMPT [ 108.168671][ T3106] Hardware name: ARM-Versatile Express [ 108.170285][ T3106] Call trace: [ 108.173682][ T3106] [<802019e4>] (dump_backtrace) from [<80201ae0>] (show_stack+0x18/0x1c) [ 108.177951][ T3106] r7:00000000 r6:828227fc r5:00000000 r4:82257e84 [ 108.179119][ T3106] [<80201ac8>] (show_stack) from [<8021ff7c>] (dump_stack_lvl+0x54/0x7c) [ 108.180266][ T3106] [<8021ff28>] (dump_stack_lvl) from [<8021ffbc>] (dump_stack+0x18/0x1c) [ 108.183660][ T3106] r5:00000000 r4:82a70d4c [ 108.185614][ T3106] [<8021ffa4>] (dump_stack) from [<802025f8>] (panic+0x120/0x374) [ 108.188616][ T3106] [<802024d8>] (panic) from [<802619e8>] (get_taint+0x0/0x1c) [ 108.188986][ T3106] r3:8280c604 r2:00000001 r1:8223ea4c r0:8224654c [ 108.189235][ T3106] r7:804020d0 [ 108.189381][ T3106] [<80261974>] (check_panic_on_warn) from [<80261b4c>] (__warn+0x80/0x188) [ 108.189557][ T3106] [<80261acc>] (__warn) from [<80261dcc>] (warn_slowpath_fmt+0x178/0x1f4) [ 108.189805][ T3106] r8:00000009 r7:8225e3a4 r6:df999c44 r5:83b0c800 r4:00000000 [ 108.189943][ T3106] [<80261c58>] (warn_slowpath_fmt) from [<804020d0>] (bpf_check+0x2d58/0x2ed4) [ 108.190176][ T3106] r10:00000002 r9:84210000 r8:00000004 r7:00000002 r6:00000003 r5:000000c3 [ 108.190377][ T3106] r4:ffffffff [ 108.190470][ T3106] [<803ff378>] (bpf_check) from [<803d66d0>] (bpf_prog_load+0x68c/0xc20) [ 108.190711][ T3106] r10:83b0c800 r9:841fa330 r8:00000048 r7:df999d90 r6:00000000 r5:00000000 [ 108.190924][ T3106] r4:df999ec0 [ 108.191007][ T3106] [<803d6044>] (bpf_prog_load) from [<803d7e24>] (__sys_bpf+0x578/0x1fd0) [ 108.191235][ T3106] r10:b5403587 r9:2000e000 r8:00000000 r7:00000000 r6:00000005 r5:df999e90 [ 108.191515][ T3106] r4:00000048 [ 108.191593][ T3106] [<803d78ac>] (__sys_bpf) from [<803d9e1c>] (sys_bpf+0x2c/0x48) [ 108.191803][ T3106] r10:00000182 r9:83b0c800 r8:8020029c r7:00000182 r6:0008e048 r5:00000000 [ 108.191970][ T3106] r4:ffffffff [ 108.192061][ T3106] [<803d9df0>] (sys_bpf) from [<80200060>] (ret_fast_syscall+0x0/0x1c) [ 108.192315][ T3106] Exception stack(0xdf999fa8 to 0xdf999ff0) [ 108.192594][ T3106] 9fa0: ffffffff 00000000 00000005 2000e000 00000048 00000000 [ 108.192824][ T3106] 9fc0: ffffffff 00000000 0008e048 00000182 00000002 0000fd90 000f4240 00000000 [ 108.193004][ T3106] 9fe0: 7e974c70 7e974c60 000106bc 0002e810 [ 108.196355][ T3106] Rebooting in 86400 seconds.. VM DIAGNOSIS: 15:15:35 Registers: info registers vcpu 0 CPU#0 R00=00000000 R01=82257e84 R02=00000000 R03=81a50e08 R04=00000006 R05=828fac48 R06=00000000 R07=828fac40 R08=83b0c800 R09=00000028 R10=828fac48 R11=df999a4c R12=df999a50 R13=df999a40 R14=803480f4 R15=81a50e18 PSR=80000093 N--- A S svc32 s00=696d7265 s01=76697373 d00=76697373696d7265 s02=74786574 s03=6f6f723d d01=6f6f723d74786574 s04=79733a74 s05=6d646173 d02=6d64617379733a74 s06=733a725f s07=64617379 d03=64617379733a725f s08=20745f6d s09=6e6f6374 d04=6e6f637420745f6d s10=74786574 s11=6f6f723d d05=6f6f723d74786574 s12=79733a74 s13=6d646173 d06=6d64617379733a74 s14=733a725f s15=64617379 d07=64617379733a725f 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=bdcad000 R01=df979000 R02=00000001 R03=80239b98 R04=7f00b000 R05=00000001 R06=82ac15a0 R07=7f00b000 R08=df979000 R09=8280c928 R10=82ac21c4 R11=df931da4 R12=df931da8 R13=df931d78 R14=80230ad0 R15=80239bb0 PSR=80070013 N--- A S svc32 s00=7974696c s01=65702032 d00=657020327974696c s02=73202038 s03=746e6f63 d01=746e6f6373202038 s04=3d747865 s05=746f6f72 d02=746f6f723d747865 s06=7379733a s07=5f6d6461 d03=5f6d64617379733a s08=79733a72 s09=6d646173 d04=6d64617379733a72 s10=7420745f s11=746e6f63 d05=746e6f637420745f s12=3d747865 s13=746f6f72 d06=746f6f723d747865 s14=7379733a s15=5f6d6461 d07=5f6d64617379733a 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