net: bcmgenet: fix off-by-one in bcmgenet_put_txcb
Priority MEDIUM 49CWE-193Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 2 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-193 and the CVSS impact.
Summary
In the Linux kernel, the following vulnerability has been resolved: net: bcmgenet: fix off-by-one in bcmgenet_put_txcb The write_ptr points to the next open tx_cb. We want to return the tx_cb that gets rewinded, so we must rewind the pointer first then return the tx_cb that it points to. That way the txcb can be correctly cleaned up.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00399 34th percentileScored 2026-11-07
Fix Partial Linux (Linux): 3.17, 5.10.258, 5.15.209 +6Red Hat: 2 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- 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 | 3.16.50 to before 3.17 | 3.17 | Patch available | CNA |
| Linux | Linux | 4.13 and later | 5.10.258, 5.15.209, 6.1.175, 6.6.141, 6.12.91, 6.18.33, 7.0.10, 7.1 | Patch available | CNA |
- Linux VendorLinux Affected 3.16.50 to before 3.17 Fixed in 3.17 Patch available CNA
- Linux VendorLinux Affected 4.13 and later Fixed in 5.10.258, 5.15.209, 6.1.175, 6.6.141, 6.12.91, 6.18.33, 7.0.10, 7.1 Patch available CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 3.16.50 to before 3.17; 4.13.1 to before 5.10.258; 5.11 to before 5.15.209; 5.16 to before 6.1.175; 6.2 to before 6.6.141; 6.7 to before 6.12.91; 6.13 to before 6.18.33; 6.19 to before 7.0.10 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:4.13:-:*:*:*:*:*:* | 4.13 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:4.13:rc2:*:*:*:*:*:* | 4.13 rc2 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:4.13:rc3:*:*:*:*:*:* | 4.13 rc3 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:4.13:rc4:*:*:*:*:*:* | 4.13 rc4 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:4.13:rc5:*:*:*:*:*:* | 4.13 rc5 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:4.13:rc6:*:*:*:*:*:* | 4.13 rc6 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:4.13:rc7:*:*:*:*:*:* | 4.13 rc7 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 3.16.50 to before 3.17; 4.13.1 to before 5.10.258; 5.11 to before 5.15.209; 5.16 to before 6.1.175; 6.2 to before 6.6.141; 6.7 to before 6.12.91; 6.13 to before 6.18.33; 6.19 to before 7.0.10 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:4.13:-:*:*:*:*:*:* Versions 4.13 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:4.13:rc2:*:*:*:*:*:* Versions 4.13 rc2 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:4.13:rc3:*:*:*:*:*:* Versions 4.13 rc3 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:4.13:rc4:*:*:*:*:*:* Versions 4.13 rc4 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:4.13:rc5:*:*:*:*:*:* Versions 4.13 rc5 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:4.13:rc6:*:*:*:*:*:* Versions 4.13 rc6 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:4.13:rc7:*:*:*:*:*:* Versions 4.13 rc7 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 3.17
- Fix · CNA Linux (Linux) Fixed in 5.10.258, 5.15.209, 6.1.175, 6.6.141, 6.12.91, 6.18.33, 7.0.10, 7.1
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
Not affected: 3 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
Timeline
- 2026-10-02 Threatist record created from CVE-2026-53088
- 2026-10-03 Alias added: GHSA-mqvv-mhq8-mx45
- 2026-10-14 EPSS moved to the below the 50th percentile
- 2026-10-16 CISA SSVC decision points changed
- 2026-10-19 Weakness changed · CISA ADP
References
Patch 8
- https://git.kernel.org/stable/c/14e9f86564fff7bcf7f45c1b69080e837b31d185
- https://git.kernel.org/stable/c/fb9a3c1f547d0ff024dbfe7b6f327626ddf0a3de
- https://git.kernel.org/stable/c/85f34ec320d3881badfd4edc5fee5cd5012bb54d
- https://git.kernel.org/stable/c/2a74590170427a3ca7cc4bb8690cdd559129c29c
- https://git.kernel.org/stable/c/29394f722f620281f2ee9a47f947734e53d72c90
- https://git.kernel.org/stable/c/4cab761fc51c65aef741fcece4a18f3554edbc09
- https://git.kernel.org/stable/c/72df896e31ddd06fcc5a789f025ad7a62a18bc9b
- https://git.kernel.org/stable/c/57f3f53d2c9c5a9e133596e2f7bc1c50688a6d38
More Linux Kernel vulnerabilities
- TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
- 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-2026-53088 · CVE Program
- CVE-2026-53088 · NVD
- FIRST EPSS
- GHSA-mqvv-mhq8-mx45 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-53088 · Red Hat security data · CC BY 4.0
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