CVE-2026-53088
Critical · CVSS 9.8Linux Kernel bcmgenet — off-by-one error in TX control block pointer management
- CVSS
- 9.8
- nvd
- EPSS
- —
- KEV
- No
- Class
- oss containerizable
- CWE-193
Description
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.
Search profile — drives PoC discovery
Symbols bcmgenet_put_txcbwrite_ptrtx_cbbcmgenettxcb
Keywords CVE-2026-53088bcmgenet_put_txcboff-by-onebcmgenettx_cbwrite_ptrLinux kernelnet bcmgenet
Versions: Linux kernel versions prior to fixes in commits 14e9f86564ff, 29394f722f62, 2a74590170427, 4cab761fc51c, 57f3f53d2c9c
Affected packages
| Linux | Kernel | 4.13.0 → 5.10.258 |
| Linux | Kernel | 5.11.0 → 5.15.209 |
| Linux | Kernel | 5.16.0 → 6.1.175 |
| Linux | Kernel | 6.13.0 → 6.18.33 |
| Linux | Kernel | 6.19.0 → 7.0.10 |
| Linux | Kernel | 6.2.0 → 6.6.141 |
| Linux | Kernel | 6.7.0 → 6.12.91 |
References
- https://git.kernel.org/stable/c/14e9f86564fff7bcf7f45c1b69080e837b31d185
- https://git.kernel.org/stable/c/29394f722f620281f2ee9a47f947734e53d72c90
- https://git.kernel.org/stable/c/2a74590170427a3ca7cc4bb8690cdd559129c29c
- https://git.kernel.org/stable/c/4cab761fc51c65aef741fcece4a18f3554edbc09
- https://git.kernel.org/stable/c/57f3f53d2c9c5a9e133596e2f7bc1c50688a6d38
- https://git.kernel.org/stable/c/72df896e31ddd06fcc5a789f025ad7a62a18bc9b
- https://git.kernel.org/stable/c/85f34ec320d3881badfd4edc5fee5cd5012bb54d
- https://git.kernel.org/stable/c/fb9a3c1f547d0ff024dbfe7b6f327626ddf0a3de
Status: enriched · ingested 2026-07-14T18:00:20.000Z · profiled 2026-07-14T18:30:20.000Z