What’s Vulnerable › Vulnerabilities

CVE-2024-46777: udf: Avoid excessive partition lengths

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-09-18 · updated 2026-08-04

Description

In the Linux kernel, the following vulnerability has been resolved: udf: Avoid excessive partition lengths Avoid mounting filesystems where the partition would overflow the 32-bits used for block number. Also refuse to mount filesystems where the partition length is so large we cannot safely index bits in a block bitmap.

Affected products

• Linux kernel: before 4.19.322; from 4.20 before 5.4.284; from 5.5 before 5.10.226; from 5.11 before 5.15.167; from 5.16 before 6.1.110; from 6.2 before 6.6.51 — fixed in 4.19.322, 5.10.226, 5.15.167, 5.4.284, 6.1.110, 6.10.10

How to fix

Upgrade to a fixed version: Linux kernel 4.19.322, 5.10.226, 5.15.167, 5.4.284. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0173999123082280cf904bd640015951f194a294
• https://git.kernel.org/stable/c/1497a4484cdb2cf6c37960d788fb6ba67567bdb7
• https://git.kernel.org/stable/c/2ddf831451357c6da4b64645eb797c93c1c054d1
• https://git.kernel.org/stable/c/551966371e17912564bc387fbeb2ac13077c3db1
• https://git.kernel.org/stable/c/925fd8ee80d5348a5e965548e5484d164d19221d
• https://git.kernel.org/stable/c/a56330761950cb83de1dfb348479f20c56c95f90
• https://git.kernel.org/stable/c/c0c23130d38e8bc28e9ef581443de9b1fc749966
• https://git.kernel.org/stable/c/ebbe26fd54a9621994bc16b14f2ba8f84c089693
• https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html
• https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

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