Kernel crash in find_vfsmount() which is belonging to the third-party modlule [ilocker]

Solution Verified - Updated -

Issue

  • Kernel crash at find_vfsmount+0x43 when running "sosreport":
PID: 12345   TASK: ffff8e9e4fa54000  CPU: 6    COMMAND: "sosreport"
 #0 [ffffaf91c4fcbb48] machine_kexec at ffffffffb2e650ce
 #1 [ffffaf91c4fcbba0] __crash_kexec at ffffffffb2fa527d
 #2 [ffffaf91c4fcbc68] crash_kexec at ffffffffb2fa616d
 #3 [ffffaf91c4fcbc80] oops_end at ffffffffb2e264cd
 #4 [ffffaf91c4fcbca0] general_protection at ffffffffb38010ee
    [exception RIP: find_vfsmount+0x43]
    RIP: ffffffffc0a10d73  RSP: ffffaf91c4fcbd50  RFLAGS: 00010293
    RAX: ffff8e9f46e36e40  RBX: ffff8e9f8735a3c0  RCX: ffff8e9f46e36e40
    RDX: 00000000000007c8  RSI: 0000000000000000  RDI: ffff8e9f8735a3c0
    RBP: 0000000000000000   R8: dead000000000100   R9: ffff8e9f4005c8a8
    R10: ffff8e9f4005c880  R11: ffff8e9f46e36e40  R12: 0000000000000000
    R13: 0000000000000000  R14: 0000000000000000  R15: ffffaf91c4fcbe68
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
 #5 [ffffaf91c4fcbd50] get_path_from_dentry at ffffffffc0a10f16 [ilocker]
 #6 [ffffaf91c4fcbd78] ccs_path_permissionx at ffffffffc0a10f53 [ilocker]
 #7 [ffffaf91c4fcbda8] probe_security_bprm_committed_creds at ffffffffc0a10a42 [ilocker]
 #8 [ffffaf91c4fcbdd8] security_inode_setattr at ffffffffb3208864
 #9 [ffffaf91c4fcbdf8] notify_change at ffffffffb315f3ef
#10 [ffffaf91c4fcbe58] chmod_common at ffffffffb313a999
#11 [ffffaf91c4fcbee8] do_fchmodat at ffffffffb313bde8
#12 [ffffaf91c4fcbf30] __x64_sys_chmod at ffffffffb313be87
#13 [ffffaf91c4fcbf38] do_syscall_64 at ffffffffb2e0430b
#14 [ffffaf91c4fcbf50] entry_SYSCALL_64_after_hwframe at ffffffffb38000ad
    RIP: 00007f807823719b  RSP: 00007f805919bc98  RFLAGS: 00000246
    RAX: ffffffffffffffda  RBX: 0000000000000000  RCX: 00007f807823719b
    RDX: 0000000000000000  RSI: 00000000000001a4  RDI: 00007f805b29adf8
    RBP: 00007f805919bcc0   R8: 0000000000000000   R9: 00007f80791846a3
    R10: 0000000000000002  R11: 0000000000000246  R12: 0000000000000001
    R13: 00000000ffffff9c  R14: 0000000000000000  R15: 00000000000001a4
    ORIG_RAX: 000000000000005a  CS: 0033  SS: 002b

Environment

  • Red Hat Enterprise Linux 8
  • Kernel-4.18.0-372.9.1.el8
  • Third-party module [ilocker]

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