ipv6: sr: fix memleak in seg6_hmac_init_algo
In the Linux kernel, the following vulnerability has been resolved: ipv6: sr: fix memleak in seg6_hmac_init_algo seg6_hmac_init_algo returns without cleaning up the previous allocations if one fails, so it's going to leak all that memory and the crypto tfms. Update seg6_hmac_exit to only free the memory when allocated, so we can reuse the code directly.
- Published
- Jul 10, 2024
- Updated
- Jun 17, 2026
- EPSS
- 0.2% · 14th percentile
- CWE
- CWE-401
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Report tools
Action score
22
Monitor
Low priority for now.
- CVSS
- 22 / 40 · 5.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.2%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpAffected systems
| Vendor | Product | CPE |
|---|---|---|
| linux | linux kernel | cpe:2.3:o:linux:linux_kernel |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- linux linux kernel4.10 and later · before 4.19.316
- linux linux kernel4.20 and later · before 5.4.278
- linux linux kernel5.5 and later · before 5.10.219
- linux linux kernel5.11 and later · before 5.15.161
- linux linux kernel5.16 and later · before 6.1.93
- linux linux kernel6.2 and later · before 6.6.33
- linux linux kernel6.7 and later · before 6.9.4
Versions reported by the vendor
Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.
Linux Linux
- 4.10affected
- bf355b8d2c30a289232042cacc1cfaea4923936c and later · before afd5730969aec960a2fee4e5ee839a6014643976affected · git
- bf355b8d2c30a289232042cacc1cfaea4923936c and later · before 4a3fcf53725b70010d1cf869a2ba549fed6b8fb3affected · git
- bf355b8d2c30a289232042cacc1cfaea4923936c and later · before daf341e0a2318b813427d5a78788c86f4a7f02beaffected · git
- bf355b8d2c30a289232042cacc1cfaea4923936c and later · before 61d31ac85b4572d11f8071855c0ccb4f32d76c0caffected · git
- bf355b8d2c30a289232042cacc1cfaea4923936c and later · before 599a5654215092ac22bfc453f4fd3959c55ea821affected · git
- bf355b8d2c30a289232042cacc1cfaea4923936c and later · before 0e44d6cbe8de983470c3d2f978649783384fdcb6affected · git
- bf355b8d2c30a289232042cacc1cfaea4923936c and later · before f6a99ef4e056c20a138a95cc51332b2b96c8f383affected · git
- bf355b8d2c30a289232042cacc1cfaea4923936c and later · before efb9f4f19f8e37fde43dfecebc80292d179f56c6affected · git
- before 4.10not affected · semver
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | linux | before 6.1.94-1 | 6.1.94-1 |
| Debian:13 | linux | before 6.9.7-1 | 6.9.7-1 |
Same product
linux: all recordsOther highest-scoring records for the same primary product.
- CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV89Now
- CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV85Now
- CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV83Now
- CVE-2019-13272In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to creKEV77This week
- CVE-2013-6282The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the v6k and v7 ARM platforms do not validate certain addKEV77This week
- CVE-2013-2094The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9 uses an incorrect integer data type, which allows loKEV77This week
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| Linux Linux | 0e44d6cbe8de983470c3d2f978649783384fdcb6 | Vendor (CNA) |
| Linux Linux | 4a3fcf53725b70010d1cf869a2ba549fed6b8fb3 | Vendor (CNA) |
| Linux Linux | 599a5654215092ac22bfc453f4fd3959c55ea821 | Vendor (CNA) |
| Linux Linux | 61d31ac85b4572d11f8071855c0ccb4f32d76c0c | Vendor (CNA) |
| Linux Linux | afd5730969aec960a2fee4e5ee839a6014643976 | Vendor (CNA) |
| Linux Linux | daf341e0a2318b813427d5a78788c86f4a7f02be | Vendor (CNA) |
| Linux Linux | efb9f4f19f8e37fde43dfecebc80292d179f56c6 | Vendor (CNA) |
| Linux Linux | f6a99ef4e056c20a138a95cc51332b2b96c8f383 | Vendor (CNA) |
| azl3 kernel 6.6.22.1-2 on Azure Linux 3.0 | 6.6.35.1-5 · CBL-Mariner Releases | Microsoft (MSRC) |
| azl3 kernel 6.6.35.1-5 on Azure Linux 3.0 | - · CBL-Mariner Releases | Microsoft (MSRC) |
| cbl2 kernel 5.15.160.1-1 on CBL Mariner 2.0 | 5.15.162.2-1 · CBL-Mariner Releases | Microsoft (MSRC) |
| cbl2 kernel 5.15.160.1-1 on CBL-Mariner 2.0 | 5.15.162.2-1 · CBL-Mariner Releases | Microsoft (MSRC) |
| cbl2 kernel 5.15.162.2-1 on CBL Mariner 2.0 | 5.15.162.2-1 · CBL-Mariner Releases | Microsoft (MSRC) |
| debian:linux | 6.1.94-1 · Debian:12 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
National notice (Türkiye Cybersecurity Directorate / USOM)
Official security notices citing this record; remediation advice is on the agency's page.
- TR-24-0936 · Jul 11, 2024(Linux Kernel Güncellemesi)
Technical details
Attack conditions
- Someone with local access to the system can trigger it.
- A low-privileged account is enough.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- high · the service can be disrupted
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
CWE-401 · Missing Release of Memory after Effective LifetimeCVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- git.kernel.org/stable/c/0e44d6cbe8de983470c3d2f978649783384fdcb6
- git.kernel.org/stable/c/4a3fcf53725b70010d1cf869a2ba549fed6b8fb3
- git.kernel.org/stable/c/599a5654215092ac22bfc453f4fd3959c55ea821
- git.kernel.org/stable/c/61d31ac85b4572d11f8071855c0ccb4f32d76c0c
- git.kernel.org/stable/c/afd5730969aec960a2fee4e5ee839a6014643976
- git.kernel.org/stable/c/daf341e0a2318b813427d5a78788c86f4a7f02be
- git.kernel.org/stable/c/efb9f4f19f8e37fde43dfecebc80292d179f56c6
- git.kernel.org/stable/c/f6a99ef4e056c20a138a95cc51332b2b96c8f383
- cert-portal.siemens.com/productcert/html/ssa-265688.html
- cert-portal.siemens.com/productcert/html/ssa-398330.html
- cert-portal.siemens.com/productcert/html/ssa-613116.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.