binder: check offset alignment in binder_get_object()
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 4 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.
Summary
In the Linux kernel, the following vulnerability has been resolved: binder: check offset alignment in binder_get_object() Commit 6d98eb95b450 ("binder: avoid potential data leakage when copying txn") introduced changes to how binder objects are copied. In doing so, it unintentionally removed an offset alignment check done through calls to binder_alloc_copy_from_buffer() -> check_buffer(). These calls were replaced in binder_get_object() with copy_from_user(), so now an explicit offset alignment check is needed here. This avoids later complications when unwinding the objects gets harder. It is worth noting this check existed prior to commit 7a67a39320df ("binder: add function to copy binder object from buffer"), likely removed due to redundancy at the time.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
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 | 5.4.226 to before 5.4.275; 5.10.157 to before 5.10.216; 5.15.17 to before 5.15.157; 5.16.3 to before 5.17 | 5.4.275, 5.10.216, 5.15.157, 5.17 | Patch available | CNA |
| Linux | Linux | 5.17 and later | 5.4.275, 5.10.216, 5.15.157, 6.1.88, 6.6.29, 6.8.8, 6.9 | Patch available | CNA |
- Linux VendorLinux Affected 5.4.226 to before 5.4.275; 5.10.157 to before 5.10.216; 5.15.17 to before 5.15.157; 5.16.3 to before 5.17 Fixed in 5.4.275, 5.10.216, 5.15.157, 5.17 Patch available CNA
- Linux VendorLinux Affected 5.17 and later Fixed in 5.4.275, 5.10.216, 5.15.157, 6.1.88, 6.6.29, 6.8.8, 6.9 Patch available CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.4.226 to before 5.4.275; 5.10.157 to before 5.10.216; 5.15.17 to before 5.15.157; 5.16.3 to before 6.1.88; 6.2 to before 6.6.29; 6.7 to before 6.8.8 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:* | 6.9 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:* | 6.9 rc2 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.9:rc3:*:*:*:*:*:* | 6.9 rc3 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.9:rc4:*:*:*:*:*:* | 6.9 rc4 | Vulnerable | Linux |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | Debian |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.4.226 to before 5.4.275; 5.10.157 to before 5.10.216; 5.15.17 to before 5.15.157; 5.16.3 to before 6.1.88; 6.2 to before 6.6.29; 6.7 to before 6.8.8 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:* Versions 6.9 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:* Versions 6.9 rc2 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.9:rc3:*:*:*:*:*:* Versions 6.9 rc3 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.9:rc4:*:*:*:*:*:* Versions 6.9 rc4 Vulnerable ·Linux
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.4.275, 5.10.216, 5.15.157, 5.17
- Fix · CNA Linux (Linux) Fixed in 5.4.275, 5.10.216, 5.15.157, 6.1.88, 6.6.29, 6.8.8, 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 |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
Timeline
- 2026-10-02 Threatist record created from CVE-2024-26926
- 2026-10-03 Alias added: GHSA-g993-hcw2-pmmf
References
Patch 7
- https://git.kernel.org/stable/c/68a28f551e4690db2b27b3db716c7395f6fada12
- https://git.kernel.org/stable/c/48a1f83ca9c68518b1a783c62e6a8223144fa9fc
- https://git.kernel.org/stable/c/a2fd6dbc98be1105a1d8e9e31575da8873ef115c
- https://git.kernel.org/stable/c/a6d2a8b211c874971ee4cf3ddd167408177f6e76
- https://git.kernel.org/stable/c/1d7f1049035b2060342f11eff957cf567d810bdc
- https://git.kernel.org/stable/c/f01d6619045704d78613b14e2e0420bfdb7f1c15
- https://git.kernel.org/stable/c/aaef73821a3b0194a01bd23ca77774f704a04d40
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Sources
- CVE-2024-26926 · CVE Program
- CVE-2024-26926 · NVD
- FIRST EPSS
- GHSA-g993-hcw2-pmmf · GitHub Advisory Database · CC BY 4.0
- CVE-2024-26926 · Red Hat security data · CC BY 4.0
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