CVE-2026-90135

In the Linux kernel, the following vulnerability has been resolved: net: add missing ref_tracker_dir_exit() to alloc_netdev_mqs() sashiko is reporting that trying to read /sys/kernel/debug/ref_tracker/* causes use-afer-free crash when either alloc_percpu() or dev_addr_init() in alloc_netdev_mqs() failed, for commit 4d92b95ff2f9 ("net: add net device refcount tracker infrastructure") added ref_tracker_dir_exit() to only free_netdev() path.

CVSS

No CVSS.

References

Link	Resource
https://git.kernel.org/stable/c/0b1c2af8a22c35cb099c735c2f63ea3ba757557d
https://git.kernel.org/stable/c/2775bf36be7872834a7f8c0a0d9681a1a3e1cd4c
https://git.kernel.org/stable/c/5fe03b5257095e2beef0bc79e1f068fbd09a24c7
https://git.kernel.org/stable/c/63ab05e8f9654aa100d366c0236399fda6ffaab1

Configurations

No configuration.

History

17 Sep 2026, 17:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-17 17:17

Updated : 2026-09-17 17:17

NVD link : CVE-2026-90135

Mitre link : CVE-2026-90135

CVE.ORG link : CVE-2026-90135

JSON object : View

Products Affected

No product.

CWE

No CWE.

{"id": "CVE-2026-90135", "cveTags": [], "metrics": {}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "4d92b95ff2f95f13df9bad0b5a25a9f60e72758d", "lessThan": "2775bf36be7872834a7f8c0a0d9681a1a3e1cd4c", "versionType": "git"}, {"status": "affected", "version": "4d92b95ff2f95f13df9bad0b5a25a9f60e72758d", "lessThan": "5fe03b5257095e2beef0bc79e1f068fbd09a24c7", "versionType": "git"}, {"status": "affected", "version": "4d92b95ff2f95f13df9bad0b5a25a9f60e72758d", "lessThan": "63ab05e8f9654aa100d366c0236399fda6ffaab1", "versionType": "git"}, {"status": "affected", "version": "4d92b95ff2f95f13df9bad0b5a25a9f60e72758d", "lessThan": "0b1c2af8a22c35cb099c735c2f63ea3ba757557d", "versionType": "git"}], "programFiles": ["net/core/dev.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.17"}, {"status": "unaffected", "version": "0", "lessThan": "5.17", "versionType": "semver"}, {"status": "unaffected", "version": "6.12.110", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.52", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.2.6", "versionType": "semver", "lessThanOrEqual": "7.2.*"}, {"status": "unaffected", "version": "7.3-rc1", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["net/core/dev.c"], "defaultStatus": "affected"}]}], "published": "2026-09-17T17:17:06.053", "references": [{"url": "https://git.kernel.org/stable/c/0b1c2af8a22c35cb099c735c2f63ea3ba757557d", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/2775bf36be7872834a7f8c0a0d9681a1a3e1cd4c", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/5fe03b5257095e2beef0bc79e1f068fbd09a24c7", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/63ab05e8f9654aa100d366c0236399fda6ffaab1", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Received", "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: add missing ref_tracker_dir_exit() to alloc_netdev_mqs()\n\nsashiko is reporting that trying to read /sys/kernel/debug/ref_tracker/*\ncauses use-afer-free crash when either alloc_percpu() or dev_addr_init()\nin alloc_netdev_mqs() failed, for commit 4d92b95ff2f9 (\"net: add net device\nrefcount tracker infrastructure\") added ref_tracker_dir_exit() to only\nfree_netdev() path."}], "lastModified": "2026-09-17T17:17:06.053", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}