nfp: hold IPsec RX state under the XArray lock

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-98561
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-18 16:17:08 UTC
Updated2026-10-18 16:17:08 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: nfp: hold IPsec RX state under the XArray lock nfp_net_ipsec_rx() drops the XArray lock before taking a reference to the xfrm_state it found. The delete path can erase the entry and drop the last state reference in that interval. RX can then try to increment a zero refcount after the state has been queued for destruction. The driver queues firmware invalidation asynchronously; the delete path does not wait for the command to complete or drain pending RX processing. The XFRM garbage collector waits for an RCU grace period before freeing the state. That delays reclamation but does not make acquiring a reference from zero valid. Take the xfrm_state reference before releasing the XArray lock so xa_erase() cannot run between lookup and reference acquisition.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 57f273adbcd44172cbe0bd10b8b7408dd255699f c1b1639fb138db52fcfbd1747e92f2454076c6d5 git Not specified
CNA Linux Linux affected 57f273adbcd44172cbe0bd10b8b7408dd255699f dd765023bb54f9650f8b9137906fb2c4a554dd1d git Not specified
CNA Linux Linux affected 57f273adbcd44172cbe0bd10b8b7408dd255699f 8468d05aa08dc430b5675beadf6f6fb8943f170b git Not specified
CNA Linux Linux affected 57f273adbcd44172cbe0bd10b8b7408dd255699f fe6c8ea8bfd5d1253bb0de682b1fcc2c4bb92488 git Not specified
CNA Linux Linux affected 57f273adbcd44172cbe0bd10b8b7408dd255699f 1a983a4e14c635c40354be110cd9a1a5c94e01e6 git Not specified
CNA Linux Linux affected 6.2 Not specified
CNA Linux Linux unaffected 6.2 semver Not specified
CNA Linux Linux unaffected 6.6.158 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.112 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.55 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.9 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc5 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/8468d05aa08dc430b5675beadf6f6fb8943f170b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/c1b1639fb138db52fcfbd1747e92f2454076c6d5 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/1a983a4e14c635c40354be110cd9a1a5c94e01e6 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/dd765023bb54f9650f8b9137906fb2c4a554dd1d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/fe6c8ea8bfd5d1253bb0de682b1fcc2c4bb92488 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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