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CVE-2026-98931

UnknownEPSS 0.17%

Last modified

CVE-2026-98931 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: mtd: spinand: fix NULL pointer dereference with no ECC engine When "nand-no-ecc-engine" is set in DT, nanddev_get_ecc_engine() takes the NAND_ECC_ENGINE_TYPE_NONE path and returns success while leaving nand->ecc.engine NULL. The SPI-NAND code nevertheless dereferences it unconditionally to test for a pipelined engine, so probing such a device oopses immediately. Rather than open-coding the test three times, add a nand_ecc_is_pipelined() helper to the NAND core that folds the NULL check into the integration comparison, and use it everywhere. EPSS estimates a 0.17% chance of exploitation in the next 30 days.

Description

In the Linux kernel, the following vulnerability has been resolved: mtd: spinand: fix NULL pointer dereference with no ECC engine When "nand-no-ecc-engine" is set in DT, nanddev_get_ecc_engine() takes the NAND_ECC_ENGINE_TYPE_NONE path and returns success while leaving nand->ecc.engine NULL. The SPI-NAND code nevertheless dereferences it unconditionally to test for a pipelined engine, so probing such a device oopses immediately. Rather than open-coding the test three times, add a nand_ecc_is_pipelined() helper to the NAND core that folds the NULL check into the integration comparison, and use it everywhere. Future callers then cannot reintroduce the problem.

Metrics

EPSS Probability
0.17%

6.2th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= f9d7c7265bcff7d9a17425a8cddf702e8fe159c2, < ab781c7840bb8a210156e25eb0c027d6097fb74d; >= f9d7c7265bcff7d9a17425a8cddf702e8fe159c2, < 77c449c9c946fc420008dc55cd30f53749c915e4; >= f9d7c7265bcff7d9a17425a8cddf702e8fe159c2, < 3c765fd5212c1bbc71568b1518a7ec963a7040b4; >= f9d7c7265bcff7d9a17425a8cddf702e8fe159c2, < 80e8b0ea73ba295e92dfb6cf1c41df9da64234c6; >= f9d7c7265bcff7d9a17425a8cddf702e8fe159c2, < fc2f651f520394893b14b75281a01e502bfa73bb; >= f9d7c7265bcff7d9a17425a8cddf702e8fe159c2, < b890e6163761ddb580cc74f43e15f8bbde15647e
LinuxLinux5.18

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-98931?
In the Linux kernel, the following vulnerability has been resolved: mtd: spinand: fix NULL pointer dereference with no ECC engine When "nand-no-ecc-engine" is set in DT, nanddev_get_ecc_engine() takes the NAND_ECC_ENGINE_TYPE_NONE path and returns success while leaving nand->ecc.engine NULL. The SPI-NAND code nevertheless dereferences it unconditionally to test for a pipelined engine, so probing such a device oopses immediately. Rather than open-coding the test three times, add a nand_ecc_is_pipelined() helper to the NAND core that folds the NULL check into the integration comparison, and use it everywhere. Future callers then cannot reintroduce the problem.
How severe is CVE-2026-98931?
Severity scoring for CVE-2026-98931 is pending analysis. The EPSS model estimates a 0.17% probability of exploitation in the next 30 days.
How do I fix CVE-2026-98931?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST