btrfs: send: handle path ref underflow in header iterate_inode_ref()
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Partial Red Hat: 2 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-209.
Summary
In the Linux kernel, the following vulnerability has been resolved: btrfs: send: handle path ref underflow in header iterate_inode_ref() Change BUG_ON to proper error handling if building the path buffer fails. The pointers are not printed so we don't accidentally leak kernel addresses.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 3.6 and later | 4.19.312, 5.4.274, 5.10.215, 5.15.155, 6.1.86, 6.6.27, 6.8.6, 6.9 | Patch available | CNA |
- Linux VendorLinux Affected 3.6 and later Fixed in 4.19.312, 5.4.274, 5.10.215, 5.15.155, 6.1.86, 6.6.27, 6.8.6, 6.9 Patch available CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | before 4.19.312; 4.20 to before 5.4.274; 5.5 to before 5.10.215; 5.11 to before 5.15.155; 5.16 to before 6.1.86; 6.2 to before 6.6.27; 6.7 to before 6.8.6 | Vulnerable | Linux |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | Debian |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 4.19.312; 4.20 to before 5.4.274; 5.5 to before 5.10.215; 5.11 to before 5.15.155; 5.16 to before 6.1.86; 6.2 to before 6.6.27; 6.7 to before 6.8.6 Vulnerable ·Linux
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
Remediation
- Fix · CNA Linux (Linux) Fixed in 4.19.312, 5.4.274, 5.10.215, 5.15.155, 6.1.86, 6.6.27, 6.8.6, 6.9
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
Not affected: 2 products
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2024-35935
- 2026-10-03 Alias added: GHSA-95jp-3qwq-rj66
References
Patch 8
- https://git.kernel.org/stable/c/be2b6bcc936ae17f42fff6494106a5660b35d8d3
- https://git.kernel.org/stable/c/024529c27c8b4b273325a169e078337c8279e229
- https://git.kernel.org/stable/c/4720d590c4cb5d9ffa0060b89743651cc7e995f9
- https://git.kernel.org/stable/c/2f6174fd4ccf403b42b3d5f0d1b6b496a0e5330a
- https://git.kernel.org/stable/c/9ae356c627b493323e1433dcb27a26917668c07c
- https://git.kernel.org/stable/c/c1363ed8867b81ea169fba2ccc14af96a85ed183
- https://git.kernel.org/stable/c/03938619a1e718b6168ae4528e1b0f979293f1a5
- https://git.kernel.org/stable/c/3c6ee34c6f9cd12802326da26631232a61743501
More Linux Kernel vulnerabilities
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- TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2024-35935 · CVE Program
- CVE-2024-35935 · NVD
- FIRST EPSS
- GHSA-95jp-3qwq-rj66 · GitHub Advisory Database · CC BY 4.0
- CVE-2024-35935 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences