CVE-2026-90080
Last modified
CVE-2026-90080 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: octeontx2-pf: fix NULL deref of af_xdp_zc_qidx on rep setup af_xdp_zc_qidx tracks receive queues using AF_XDP zero-copy and is allocated during PF/VF probe. Representors and other non-AF_XDP paths leave the pointer NULL, but several call sites used test_bit() on it unconditionally. Switching to devlink eswitch mode creates representors and runs otx2_init_hw_resources(), which reaches otx2_pool_aq_init() and oopses when dereferencing the NULL bitmap.
Description
In the Linux kernel, the following vulnerability has been resolved: octeontx2-pf: fix NULL deref of af_xdp_zc_qidx on rep setup af_xdp_zc_qidx tracks receive queues using AF_XDP zero-copy and is allocated during PF/VF probe. Representors and other non-AF_XDP paths leave the pointer NULL, but several call sites used test_bit() on it unconditionally. Switching to devlink eswitch mode creates representors and runs otx2_init_hw_resources(), which reaches otx2_pool_aq_init() and oopses when dereferencing the NULL bitmap. Add NULL checks before every af_xdp_zc_qidx test_bit() use in the RSS, ethtool, XSK, and pool init paths.
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= efabce29015189cb5cd8066cf29eb1d754de6c3c, < b003d5b4e46ca5033859db601e12d36da24d0e40; >= efabce29015189cb5cd8066cf29eb1d754de6c3c, < 7e33c6bd049b532d2ec4916895ef07e538bed905; >= efabce29015189cb5cd8066cf29eb1d754de6c3c, < b09a0503c755b6609fad59a84cc7f05b6843a03c; 9bd7273cf1f9c5761d696cca821d25602e8f7009; >= 6.14.9, < 6.15 |
| Linux | Linux | 6.15 |
References
Timeline
- Published
- Last Modified
- Status
- Received
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