CVE-2021-47116

Summary

In the Linux kernel, the following vulnerability has been resolved:

ext4: fix memory leak in ext4_mb_init_backend on error path.

Fix a memory leak discovered by syzbot when a file system is corrupted with an illegally large s_log_groups_per_flex.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxdf61d3cff422433527d3bc388f69484f0781d226 < 2050c6e5b161e5e25ce3c420fef58b24fa388a49affected
LinuxLinuxf91436d55a279f045987e8b8c1385585dca54be9 < 04fb2baa0b147f51db065a1b13a11954abe592d0affected
LinuxLinuxf91436d55a279f045987e8b8c1385585dca54be9 < a8867f4e3809050571c98de7a2d465aff5e4daf5affected
LinuxLinux9e7af67e9521fb5cbb5b01aca22921c313c2e48eaffected
LinuxLinux5.10.27 < 5.10.43affected
LinuxLinux5.11.11 < 5.12affected
LinuxLinux5.12affected
LinuxLinux0 < 5.12unaffected
LinuxLinux5.10.43 <= 5.10.*unaffected
LinuxLinux5.12.10 <= 5.12.*unaffected
LinuxLinux5.13 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

CVE Program Container

Additional References

References