CVE-2023-52619

Summary

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

pstore/ram: Fix crash when setting number of cpus to an odd number

When the number of cpu cores is adjusted to 7 or other odd numbers, the zone size will become an odd number. The address of the zone will become: addr of zone0 = BASE addr of zone1 = BASE + zone_size addr of zone2 = BASE + zone_size*2 … The address of zone1/3/5/7 will be mapped to non-alignment va. Eventually crashes will occur when accessing these va.

So, use ALIGN_DOWN() to make sure the zone size is even to avoid this bug.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxde83209249d64bad993f25d3ea4bba57683e2e2e < 8b69c30f4e8b69131d92096cb296dc1f217101e4affected
LinuxLinuxde83209249d64bad993f25d3ea4bba57683e2e2e < e9f6ac50890104fdf8194f2865680689239d30fbaffected
LinuxLinuxde83209249d64bad993f25d3ea4bba57683e2e2e < a63e48cd835c34c38ef671d344cc029b1ea5bf10affected
LinuxLinuxde83209249d64bad993f25d3ea4bba57683e2e2e < 2a37905d47bffec61e95d99f0c1cc5dc6377956caffected
LinuxLinuxde83209249d64bad993f25d3ea4bba57683e2e2e < 75b0f71b26b3ad833c5c0670109c0af6e021e86aaffected
LinuxLinuxde83209249d64bad993f25d3ea4bba57683e2e2e < 0593cfd321df9001142a9d2c58d4144917dff7eeaffected
LinuxLinuxde83209249d64bad993f25d3ea4bba57683e2e2e < cd40e43f870cf21726b22487a95ed223790b3542affected
LinuxLinuxde83209249d64bad993f25d3ea4bba57683e2e2e < d49270a04623ce3c0afddbf3e984cb245aa48e9caffected
LinuxLinux4.10affected
LinuxLinux0 < 4.10unaffected
LinuxLinux4.19.307 <= 4.19.*unaffected
LinuxLinux5.4.269 <= 5.4.*unaffected
LinuxLinux5.10.210 <= 5.10.*unaffected
LinuxLinux5.15.149 <= 5.15.*unaffected
LinuxLinux6.1.77 <= 6.1.*unaffected
LinuxLinux6.6.16 <= 6.6.*unaffected
LinuxLinux6.7.4 <= 6.7.*unaffected
LinuxLinux6.8 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

CVE Program Container

Additional References

References