7.8

CVE-2024-40901: linux Out-of-bounds Write

CVSS: 7.8v3.1HighModified
AliasesUBUNTU-CVE-2024-40901DEBIAN-CVE-2024-40901
Published 12-07-2024Last modified 15-10-2026
Open JSON

Vulnerability summary

CVE-2024-40901 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in linux. EPSS estimates a 0.32% chance of exploitation in the next 30 days, higher than 23% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
0.32%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 39 · Related 32
DLA-4008-1DSA-5730-1DSA-5731-1RHSA-2024:7000RHSA-2024:7001RHSA-2024:9315

Timeline

  1. 12-07-2024
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: mpt3sas: Avoid test/set_bit() operating in non-allocated memory There is a potential out-of-bounds access when using test_bit() on a single word. The test_bit() and set_bit() functions operate on long values, and when testing or setting a single word, they can exceed the word boundary. KASAN detects this issue and produces a dump: BUG: KASAN: slab-out-of-bounds in _scsih_add_device.constprop.0 (./arch/x86/include/asm/bitops.h:60 ./include/asm-generic/bitops/instrumented-atomic.h:29 drivers/scsi/mpt3sas/mpt3sas_scsih.c:7331) mpt3sas Write of size 8 at addr ffff8881d26e3c60 by task kworker/u1536:2/2965 For full log, please look at [1]. Make the allocation at least the size of sizeof(unsigned long) so that set_bit() and test_bit() have sufficient room for read/write operations without overwriting unallocated memory. [1] Link: https://lore.kernel.org/all/ZkNcALr3W3KGYYJG@gmail.com/

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.32%

Chance of exploitation in the next 30 days

Percentile

23%

Versus all other CVEs

30-day change

+0.01 pp

From 0.31% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.32%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu127 products
  • linux< 4.15.0-230.242 | < 5.4.0-195.215 | < 5.15.0-121.131 | < 6.8.0-44.44
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 4.15.0-1174.187 | < 5.4.0-1132.142 | < 5.15.0-1069.75 | < 6.8.0-1015.16
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ c696f7b83edeac804e898952058089143f49ca0a, < e9bce7c751f6d6c7be88c0bc081a66aaf61a23ee | ≥ c696f7b83edeac804e898952058089143f49ca0a, < 19649e49a6df07cd2e03e0a11396fd3a99485ec2 | ≥ c696f7b83edeac804e898952058089143f49ca0a, < 0081d2b3ae0a17a86b8cc0fa3c8bdc54e233ba16 | ≥ c696f7b83edeac804e898952058089143f49ca0a, < 521f333e644c4246ca04a4fc4772edc53dd2a801 | ≥ c696f7b83edeac804e898952058089143f49ca0a, < 46bab2bcd771e725ff5ca3a68ba68cfeac45676c | ≥ c696f7b83edeac804e898952058089143f49ca0a, < 9079338c5a0d1f1fee34fb1c9e99b754efe414c5 | ≥ c696f7b83edeac804e898952058089143f49ca0a, < 18abb5db0aa9b2d48f7037a88b41af2eef821674 | ≥ c696f7b83edeac804e898952058089143f49ca0a, < 4254dfeda82f20844299dca6c38cbffcfd499f41 | 4.10
  • linux_kernel≥ 4.10, < 4.19.317 | ≥ 4.20, < 5.4.279 | ≥ 5.5, < 5.10.221 | ≥ 5.11, < 5.15.162 | ≥ 5.16, < 6.1.95 | ≥ 6.2, < 6.6.35 | ≥ 6.7, < 6.9.6 | 6.10:rc1 | 6.10:rc2 | 6.10:rc3
Debian1 product
  • linux< 6.1.99-1 | < 6.9.7-1

3 vendors · 130 products

References

36 links
Show all 36 references