CVE-2026-43373
In the Linux kernel, the following vulnerability has been resolved: net: ncsi: fix skb leak in error paths Early return paths in NCSI RX and AEN handlers fail to release the received skb, resulting in a memory leak.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.50%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the Linux kernel, the following vulnerability has been resolved: net: ncsi: fix skb leak in error paths Early return paths in NCSI RX and AEN handlers fail to release the received skb, resulting in a memory leak. Specifically, ncsi_aen_handler() returns on invalid AEN packets without consuming the skb. Similarly, ncsi_rcv_rsp() exits early when failing to resolve the NCSI device, response handler, or request, leaving the skb unfreed.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.50% probability · 41th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-401
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/553366c271479c0d571dd1bb5d1bcde4747fb82ePatch
- https://git.kernel.org/stable/c/59962588197863d0d746879f193905c0c6b3df49Patch
- https://git.kernel.org/stable/c/5c3398a54266541610c8d0a7082e654e9ff3e259Patch
- https://git.kernel.org/stable/c/81d6aee32f8f7bbc175c05dbf61f4430bfb88c4aPatch
- https://git.kernel.org/stable/c/87138dde2d6937b12b967f28fe598a7d59000ae4Patch
- https://git.kernel.org/stable/c/9891d7f4f1ede473c54b49776ae07755083eef06Patch
- https://git.kernel.org/stable/c/b70c4e5e711931cdd56e6e905737b72f1e649189Patch
- https://git.kernel.org/stable/c/fef5aa6e3bcf3c8053307642663a63b7362d7552Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.