CVE-2024-49877 json
ocfs2: fix possible null-ptr-deref in ocfs2_set_buffer_uptodate
published 2024-10-21 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-43783
- cvss
- 5.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 16%
- public exploits
- 0
- none known
Summary
In the Linux kernel, the following vulnerability has been resolved:
ocfs2: fix possible null-ptr-deref in ocfs2_set_buffer_uptodate
When doing cleanup, if flags without OCFS2_BH_READAHEAD, it may trigger NULL pointer dereference in the following ocfs2_set_buffer_uptodate() if bh is NULL.
Patch / fix
- Linux Linux 4.5, 4.10, 4.15, 4.19.323, 5.4.285, 5.10.227, 5.15.168, 6.1.113, 6.6.55, 6.10.14, 6.11.3, 6.12
- linux Debian 12 6.1.115-1
- linux Debian 14, Debian 13 6.11.4-1
debian advisories DEBIAN-CVE-2024-49877
- linux Ubuntu 20.04 LTS 5.4.0-208.228
- linux Ubuntu 22.04 LTS 5.15.0-127.137
- linux Ubuntu 24.04 LTS 6.8.0-54.56
- linux-aws Ubuntu 20.04 LTS 5.4.0-1140.150
- linux-aws Ubuntu 22.04 LTS 5.15.0-1073.79
- linux-aws Ubuntu 24.04 LTS 6.8.0-1023.25
- linux-gcp Ubuntu 20.04 LTS 5.4.0-1143.152
- linux-gcp Ubuntu 22.04 LTS 5.15.0-1072.80
ubuntu advisories UBUNTU-CVE-2024-49877
Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
- kernel-source Linux Micro 6.1, Linux Micro 6.0 6.4.0-24.1
- kernel-default Linux Micro 6.1, Linux Micro 6.0 6.4.0-24.1
- kernel-kvmsmall Linux Micro 6.1, Linux Micro 6.0 6.4.0-24.1
- kernel-default-base Linux Micro 6.1, Linux Micro 6.0 6.4.0-24.1.21.4
- kernel-livepatch-MICRO-6-0_Update_4 Linux Micro 6.1, Linux Micro 6.0 1-1.2
- kernel-rt Linux Micro 6.1, Linux Micro 6.0 6.4.0-22.1
- kernel-source-rt Linux Micro 6.1, Linux Micro 6.0 6.4.0-22.1
- kernel-livepatch-MICRO-6-0-RT_Update_4 Linux Micro 6.1, Linux Micro 6.0 1-1.1
suse advisories SUSE-SU-2025:20164-1SUSE-SU-2025:20247-1SUSE-SU-2025:20163-1SUSE-SU-2025:20246-1SUSE-SU-2025:0034-1SUSE-SU-2024:4387-1
- kernel-source-longterm openSUSE Tumbleweed 6.12.11-1.1
- kernel-source openSUSE Tumbleweed 6.11.8-1.1
opensuse advisories openSUSE-SU-2025:14705-1openSUSE-SU-2024:14500-1
- kernel CBL-Mariner 2.0 5.15.173.1-1
- kernel Azure Linux 3.0 6.6.56.1-5
azure linux advisories AZL-51193AZL-51276
Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT
- git.kernel.org/stable/c/190d98bcd61117a78fe185222d162180f061a6ca commit
- git.kernel.org/stable/c/e68c8323355e8cedfbe0bec7d5a39009f61640b6 commit
- git.kernel.org/stable/c/61b84013e560382cbe7dd56758be3154d43a3988 commit
- git.kernel.org/stable/c/df944dc46d06af65a75191183d52be017e6b9dbe commit
- git.kernel.org/stable/c/01cb2e751cc61ade454c9bc1aaa2eac1f8197112 commit
- git.kernel.org/stable/c/d52c5652e7dcb7a0648bbb8642cc3e617070ab49 commit
- git.kernel.org/stable/c/46b1edf0536a5291a8ad2337f88c926214b209d9 commit
- git.kernel.org/stable/c/4846e72ab5a0726e49ad4188b9d9df091ae78c64 commit
- git.kernel.org/stable/c/33b525cef4cff49e216e4133cc48452e11c0391e commit
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2024-49877 updated cvss 5.5
kernel: ocfs2: fix possible null-ptr-deref in ocfs2_set_buffer_uptodate
-
Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more Red Hat Enterprise Linux 8 perf, kernel, bpftool, kernel-rt, kernel-core, kernel-tools, +29 more Red Hat Enterprise Linux 9 rv, perf, rtla, kernel, bpftool, libperf, +83 morenot affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
cisa ICSA-25-226-07 updated
Siemens Third-Party Components in SINEC OS
-
Siemens RUGGEDCOM RST2428P (6GK6242-6PA00) Siemens SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family Siemens SCALANCE XCM-/XRM-/XCH-/XRH-300 familynot affected
Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.25% chance of exploitation in the next 30 days, higher than 16% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Affected products
- Linux Linux
Classification
- Weakness
-
- CWE-476 NULL Pointer Dereference
- Technology feeds
References
- git.kernel.org /stable/c/190d98bcd61117a78fe185222d162180f061a6ca
- git.kernel.org /stable/c/e68c8323355e8cedfbe0bec7d5a39009f61640b6
-
git.kernel.org
/stable/c/61b84013e560382cbe7dd56758be3154d43a3988
patch
-
git.kernel.org
/stable/c/df944dc46d06af65a75191183d52be017e6b9dbe
patch
-
git.kernel.org
/stable/c/01cb2e751cc61ade454c9bc1aaa2eac1f8197112
patch
-
git.kernel.org
/stable/c/d52c5652e7dcb7a0648bbb8642cc3e617070ab49
patch
-
git.kernel.org
/stable/c/46b1edf0536a5291a8ad2337f88c926214b209d9
patch
-
git.kernel.org
/stable/c/4846e72ab5a0726e49ad4188b9d9df091ae78c64
patch
-
git.kernel.org
/stable/c/33b525cef4cff49e216e4133cc48452e11c0391e
patch
- lists.debian.org /debian-lts-announce/2025/03/msg00002.html
- lists.debian.org /debian-lts-announce/2025/01/msg00001.html
Sources
- CVE List CVE-2024-49877
- NVD CVE-2024-49877
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.