mtd: spinand: fix NULL pointer dereference with no ECC engine
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.
CVE-2026-98931
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-98931
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "f9d7c7265bcff7d9a17425a8cddf702e8fe159c2",
"lessThan": "77c449c9c946fc420008dc55cd30f53749c915e4",
"versionType": "git"
},
{
"status": "affected",
"version": "f9d7c7265bcff7d9a17425a8cddf702e8fe159c2",
"lessThan": "3c765fd5212c1bbc71568b1518a7ec963a7040b4",
"versionType": "git"
},
{
"status": "affected",
"version": "f9d7c7265bcff7d9a17425a8cddf702e8fe159c2",
"lessThan": "80e8b0ea73ba295e92dfb6cf1c41df9da64234c6",
"versionType": "git"
},
{
"status": "affected",
"version": "f9d7c7265bcff7d9a17425a8cddf702e8fe159c2",
"lessThan": "fc2f651f520394893b14b75281a01e502bfa73bb",
"versionType": "git"
},
{
"status": "affected",
"version": "f9d7c7265bcff7d9a17425a8cddf702e8fe159c2",
"lessThan": "b890e6163761ddb580cc74f43e15f8bbde15647e",
"versionType": "git"
}
],
"programFiles": [
"drivers/mtd/nand/ecc.c",
"drivers/mtd/nand/spi/core.c",
"include/linux/mtd/nand.h"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.18"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.18",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.113",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.56",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.10",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/mtd/nand/ecc.c",
"drivers/mtd/nand/spi/core.c",
"include/linux/mtd/nand.h"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98931
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #52791 · Revision 1
- Added to Heist Feed
- Publisher date