CVE-2026-98561nfp: hold IPsec RX state under the XArray lock
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In 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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 18, 2026
- First seen by InfoSec Signals
- Oct 18, 2026
Affected products
Linux Linux linux:linux (from the name) | from 57f273adbcd44172cbe0bd10b8b7408dd255699f before c1b1639fb138db52fcfbd1747e92f2454076c6d5; from 57f273adbcd44172cbe0bd10b8b7408dd255699f before dd765023bb54f9650f8b9137906fb2c4a554dd1d; from 57f273adbcd44172cbe0bd10b8b7408dd255699f before 8468d05aa08dc430b5675beadf6f6fb8943f170b; from 57f273adbcd44172cbe0bd10b8b7408dd255699f before fe6c8ea8bfd5d1253bb0de682b1fcc2c4bb92488; 57f273adbcd44172cbe0bd10b8b7408dd255699f builds before 1a983a4e14c635c40354be110cd9a1a5c94e01e6 | CNA record |
References
- https://git.kernel.org/stable/c/c1b1639fb138db52fcfbd1747e92f2454076c6d5
- https://git.kernel.org/stable/c/dd765023bb54f9650f8b9137906fb2c4a554dd1d
- https://git.kernel.org/stable/c/8468d05aa08dc430b5675beadf6f6fb8943f170b
- https://git.kernel.org/stable/c/fe6c8ea8bfd5d1253bb0de682b1fcc2c4bb92488
- https://git.kernel.org/stable/c/1a983a4e14c635c40354be110cd9a1a5c94e01e6
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.