7.8

CVE-2024-26749: linux Use After Free

CVSS: 7.8v3.1HighAnalyzed
AliasesUBUNTU-CVE-2024-26749DEBIAN-CVE-2024-26749
Published 03-04-2024Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2024-26749 is a high (CVSS 7.8) Use After Free vulnerability in linux. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 14.5% 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
0.24%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 17 · Related 15
DLA-3842-1DSA-5681-1SUSE-SU-2024:1490-1SUSE-SU-2024:1659-1SUSE-SU-2024:1663-1USN-6820-1

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: usb: cdns3: fixed memory use after free at cdns3_gadget_ep_disable() ... cdns3_gadget_ep_free_request(&priv_ep->endpoint, &priv_req->request); list_del_init(&priv_req->list); ... 'priv_req' actually free at cdns3_gadget_ep_free_request(). But list_del_init() use priv_req->list after it. [ 1542.642868][ T534] BUG: KFENCE: use-after-free read in __list_del_entry_valid+0x10/0xd4 [ 1542.642868][ T534] [ 1542.653162][ T534] Use-after-free read at 0x000000009ed0ba99 (in kfence-#3): [ 1542.660311][ T534] __list_del_entry_valid+0x10/0xd4 [ 1542.665375][ T534] cdns3_gadget_ep_disable+0x1f8/0x388 [cdns3] [ 1542.671571][ T534] usb_ep_disable+0x44/0xe4 [ 1542.675948][ T534] ffs_func_eps_disable+0x64/0xc8 [ 1542.680839][ T534] ffs_func_set_alt+0x74/0x368 [ 1542.685478][ T534] ffs_func_disable+0x18/0x28 Move list_del_init() before cdns3_gadget_ep_free_request() to resolve this problem.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

15%

Versus all other CVEs

30-day change

0.00 pp

From 0.24% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.24%

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

Ubuntu112 products
  • linux< 5.4.0-186.206 | < 5.15.0-112.122
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.4.0-1126.136 | < 5.15.0-1063.69
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 7733f6c32e36ff9d7adadf40001039bf219b1cbe, < cfa9abb5570c489dabf6f7fb3a066cc576fc8824 | ≥ 7733f6c32e36ff9d7adadf40001039bf219b1cbe, < b40328eea93c75a5645891408010141a0159f643 | ≥ 7733f6c32e36ff9d7adadf40001039bf219b1cbe, < 4e5c73b15d95452c1ba9c771dd013a3fbe052ff3 | ≥ 7733f6c32e36ff9d7adadf40001039bf219b1cbe, < 2134e9906e17b1e5284300fab547869ebacfd7d9 | ≥ 7733f6c32e36ff9d7adadf40001039bf219b1cbe, < 29e42e1578a10c611b3f1a38f3229b2d664b5d16 | ≥ 7733f6c32e36ff9d7adadf40001039bf219b1cbe, < 9a07244f614bc417de527b799da779dcae780b5d | ≥ 7733f6c32e36ff9d7adadf40001039bf219b1cbe, < cd45f99034b0c8c9cb346dd0d6407a95ca3d36f6 | 5.4
  • linux_kernel≥ 5.4, < 5.4.270 | ≥ 5.5, < 5.10.211 | ≥ 5.11, < 5.15.150 | ≥ 5.16, < 6.1.80 | ≥ 6.2, < 6.6.19 | ≥ 6.7, < 6.7.7 | 6.8:rc1 | 6.8:rc2 | 6.8:rc3 | 6.8:rc4 | 6.8:rc5
Debian1 product
  • linux< 6.1.82-1 | < 6.7.7-1

3 vendors · 115 products

References

24 links
Show all 24 references