5.5

CVE-2024-49850: linux NULL Pointer Dereference

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2024-49850DEBIAN-CVE-2024-49850
Published 21-10-2024Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2024-49850 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 10.1% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.21%
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 28 · Related 27
DLA-4008-1MGASA-2024-0344MGASA-2024-0345OPENSUSE-SU-2024:14500-1OPENSUSE-SU-2025:14705-1SUSE-SU-2024:3984-1

Timeline

  1. 21-10-2024
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: bpf: correctly handle malformed BPF_CORE_TYPE_ID_LOCAL relos In case of malformed relocation record of kind BPF_CORE_TYPE_ID_LOCAL referencing a non-existing BTF type, function bpf_core_calc_relo_insn would cause a null pointer deference. Fix this by adding a proper check upper in call stack, as malformed relocation records could be passed from user space. Simplest reproducer is a program: r0 = 0 exit With a single relocation record: .insn_off = 0, /* patch first instruction */ .type_id = 100500, /* this type id does not exist */ .access_str_off = 6, /* offset of string "0" */ .kind = BPF_CORE_TYPE_ID_LOCAL, See the link for original reproducer or next commit for a test case.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

10%

Versus all other CVEs

30-day change

0.00 pp

From 0.21% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.21%

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

Ubuntu94 products
  • linux< 6.8.0-54.56
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 6.8.0-1023.25
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 74753e1462e77349525daf9eb60ea21ed92d3a97, < dc7ce14f00bcd50641f2110b7a32aa6552e0780f | ≥ 74753e1462e77349525daf9eb60ea21ed92d3a97, < 2288b54b96dcb55bedebcef3572bb8821fc5e708 | ≥ 74753e1462e77349525daf9eb60ea21ed92d3a97, < 584cd3ff792e1edbea20b2a7df55897159b0be3e | ≥ 74753e1462e77349525daf9eb60ea21ed92d3a97, < e7e9c5b2dda29067332df2a85b0141a92b41f218 | ≥ 74753e1462e77349525daf9eb60ea21ed92d3a97, < 3d2786d65aaa954ebd3fcc033ada433e10da21c4 | 5.17
  • linux_kernel≥ 5.17, < 6.1.113 | ≥ 6.2, < 6.6.54 | ≥ 6.7, < 6.10.13 | ≥ 6.11, < 6.11.2
Debian1 product
  • linux< 6.1.115-1 | < 6.11.2-1

3 vendors · 97 products

References

25 links
Show all 25 references