5.5

CVE-2024-26710: powerpc/kasan: Limit KASAN thread size increase to 32KB

Modified
AliasesUBUNTU-CVE-2024-26710DEBIAN-CVE-2024-26710
Published 03-04-2024Last modified 11-05-2026

Vulnerability summary

CVE-2024-26710 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 15.8% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.24%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 5 · Related 5
USN-6895-1USN-6895-2USN-6895-3USN-6895-4USN-6900-1

Timeline

  1. 03-04-2024
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: powerpc/kasan: Limit KASAN thread size increase to 32KB KASAN is seen to increase stack usage, to the point that it was reported to lead to stack overflow on some 32-bit machines (see link). To avoid overflows the stack size was doubled for KASAN builds in commit 3e8635fb2e07 ("powerpc/kasan: Force thread size increase with KASAN"). However with a 32KB stack size to begin with, the doubling leads to a 64KB stack, which causes build errors: arch/powerpc/kernel/switch.S:249: Error: operand out of range (0x000000000000fe50 is not between 0xffffffffffff8000 and 0x0000000000007fff) Although the asm could be reworked, in practice a 32KB stack seems sufficient even for KASAN builds - the additional usage seems to be in the 2-3KB range for a 64-bit KASAN build. So only increase the stack for KASAN if the stack size is < 32KB.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

16%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.24% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu75 products
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
  • linux-aws-5.13All versions (No fix recorded)
  • linux-aws-5.19All versions (No fix recorded)
Linux2 products
  • linux≥ 9ccf64e763aca088b0d25c1274af42b1a6a45135, < f9a4c401bf4c5af3437ad221c0a5880a518068d4 | ≥ b38014874530d3776de75679315e8c1fe04aa89b, < 4cc31fa07445879a13750cb061bb8c2654975fcb | ≥ 58f396513cb1fa4ef91838c78698d458100cc27c, < b29b16bd836a838b7690f80e37f8376414c74cbe | ≥ 18f14afe281648e31ed35c9ad2fcb724c4838ad9, < f1acb109505d983779bbb7e20a1ee6244d2b5736 | ≥ 6.1.75, < 6.1.76 | ≥ 6.6.14, < 6.6.18 | ≥ 6.7.2, < 6.7.6
  • linux_kernel≥ 6.1.75, < 6.1.79 | ≥ 6.6.14, < 6.6.18 | ≥ 6.7.2, < 6.7.6
Debian1 product
  • linux< 6.8.9-1

3 vendors · 78 products

References

14 links
Show all 14 references