CVE-2024-50199: linux
Vulnerability summary
CVE-2024-50199 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 12.1% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 58 · Related 57Timeline
- 08-11-2024PublishedVulnerability first disclosed.
- 11-05-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: mm/swapfile: skip HugeTLB pages for unuse_vma I got a bad pud error and lost a 1GB HugeTLB when calling swapoff. The problem can be reproduced by the following steps: 1. Allocate an anonymous 1GB HugeTLB and some other anonymous memory. 2. Swapout the above anonymous memory. 3. run swapoff and we will get a bad pud error in kernel message: mm/pgtable-generic.c:42: bad pud 00000000743d215d(84000001400000e7) We can tell that pud_clear_bad is called by pud_none_or_clear_bad in unuse_pud_range() by ftrace. And therefore the HugeTLB pages will never be freed because we lost it from page table. We can skip HugeTLB pages for unuse_vma to fix it.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.22%
Chance of exploitation in the next 30 days
Percentile
12%
Versus all other CVEs
30-day change
0.00 pp
From 0.22% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Ubuntu134 products
- linuxAll versions (No fix recorded) | < 5.4.0-208.228 | < 5.15.0-133.144 | < 6.8.0-56.58
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.4.0-1140.150 | < 5.15.0-1078.85 | < 6.8.0-1025.27
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 0fe6e20b9c4c53b3e97096ee73a0857f60aad43f, < ba7f982cdb37ff5a7739dec85d7325ea66fc1496 | ≥ 0fe6e20b9c4c53b3e97096ee73a0857f60aad43f, < 417d5838ca73c6331ae2fe692fab6c25c00d9a0b | ≥ 0fe6e20b9c4c53b3e97096ee73a0857f60aad43f, < e41710f5a61aca9d6baaa8f53908a927dd9e7aa7 | ≥ 0fe6e20b9c4c53b3e97096ee73a0857f60aad43f, < 6ec0fe3756f941f42f8c57156b8bdf2877b2ebaf | ≥ 0fe6e20b9c4c53b3e97096ee73a0857f60aad43f, < bed2b9037806c62166a0ef9a559a1e7e3e1275b8 | ≥ 0fe6e20b9c4c53b3e97096ee73a0857f60aad43f, < eb66a833cdd2f7302ee05d05e0fa12a2ca32eb87 | ≥ 0fe6e20b9c4c53b3e97096ee73a0857f60aad43f, < 7528c4fb1237512ee18049f852f014eba80bbe8d | 2.6.36
- linux_kernel≥ 2.6.36, < 5.4.285 | ≥ 5.5, < 5.10.228 | ≥ 5.11, < 5.15.169 | ≥ 5.16, < 6.1.114 | ≥ 6.2, < 6.6.58 | ≥ 6.7, < 6.11.5 | 6.12:rc1 | 6.12:rc2 | 6.12:rc3
Debian1 product
- linux< 6.1.115-1 | < 6.11.5-1
3 vendors · 137 products