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CVE-2023-52619

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

Description (CNA)

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 (CNA)

Vendor / productVersions
Linux / Linuxaffected de83209249d64bad993f25d3ea4bba57683e2e2e before 8b69c30f4e8b69131d92096cb296dc1f217101e4; affected de83209249d64bad993f25d3ea4bba57683e2e2e before e9f6ac50890104fdf8194f2865680689239d30fb; affected de83209249d64bad993f25d3ea4bba57683e2e2e before a63e48cd835c34c38ef671d344cc029b1ea5bf10; affected de83209249d64bad993f25d3ea4bba57683e2e2e before 2a37905d47bffec61e95d99f0c1cc5dc6377956c; affected de83209249d64bad993f25d3ea4bba57683e2e2e before 75b0f71b26b3ad833c5c0670109c0af6e021e86a; affected de83209249d64bad993f25d3ea4bba57683e2e2e before 0593cfd321df9001142a9d2c58d4144917dff7ee; affected de83209249d64bad993f25d3ea4bba57683e2e2e before cd40e43f870cf21726b22487a95ed223790b3542; affected de83209249d64bad993f25d3ea4bba57683e2e2e before d49270a04623ce3c0afddbf3e984cb245aa48e9c
Linux / Linuxaffected 4.10; unaffected 0 before 4.10; unaffected 4.19.307 through 4.19.*; unaffected 5.4.269 through 5.4.*; unaffected 5.10.210 through 5.10.*; unaffected 5.15.149 through 5.15.*; unaffected 6.1.77 through 6.1.*; unaffected 6.6.16 through 6.6.*; unaffected 6.7.4 through 6.7.*; unaffected 6.8 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.