CVE-2026-43089
5.5 MEDIUMIn the Linux kernel, the following vulnerability has been resolved: xfrm_user: fix info leak in build_mapping() struct xfrm_usersa_id h...
Published: 2026-05-06 · Last updated: 2026-06-01
Severity and scoring
- CVSS
- 5.5 MEDIUM
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CWE
- CWE-401
Affected products
| Vendor | Product |
|---|---|
| linux | linux_kernel |
Description
In the Linux kernel, the following vulnerability has been resolved: xfrm_user: fix info leak in build_mapping() struct xfrm_usersa_id has a one-byte padding hole after the proto field, which ends up never getting set to zero before copying out to userspace. Fix that up by zeroing out the whole structure before setting individual variables.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-43089
- [Patch]https://git.kernel.org/stable/c/1beb76b2053b68c491b78370794b8ff63c8f8c02
- [Other]https://git.kernel.org/stable/c/521385cbd50ca9474396d88462fcdfa6489685d9
- [Patch]https://git.kernel.org/stable/c/5a1a4b049ddde41466ccac0daeec326254b133f2
- [Patch]https://git.kernel.org/stable/c/700c9622b23c33b5933e6dcea816492c064e4e10
- [Other]https://git.kernel.org/stable/c/72a8de41c3eb4dcf22bf3b674ea38fb2f75d6f32
- [Other]https://git.kernel.org/stable/c/c2779ae9a3e5a044e5ccd564681511bbbcc5fc0f
- [Patch]https://git.kernel.org/stable/c/d3125c541a96fb3c0fc7210112684baf22b6c24d
- [Patch]https://git.kernel.org/stable/c/f779a6b6cdb6e12baa0663063ac59ab2a8f20c0c
Related CVEs
Same vendor
- CVE-2026-46273 — In the Linux kernel, the following vulnerability has been resolved: ibmveth: Disable GSO for packets with small MSS Some physical adapt... (8.6 HIGH)
- CVE-2026-46272 — In the Linux kernel, the following vulnerability has been resolved: coresight: tmc-etr: Fix race condition between sysfs and perf mode ... (4.7 MEDIUM)
- CVE-2026-46271 — In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: do WoW offloads only on primary link In case of multi... (7.8 HIGH)
- CVE-2026-46270 — In the Linux kernel, the following vulnerability has been resolved: power: supply: rt9455: Fix use-after-free in power_supply_changed() ... (8.4 HIGH)
- CVE-2026-46269 — In the Linux kernel, the following vulnerability has been resolved: pinctrl: canaan: k230: Fix NULL pointer dereference when parsing dev... (5.5 MEDIUM)
Same CWE
- CVE-2026-0646 — A denial-of-service security issue exists within the 1794-AENTR adapter due to improper memory handling of CIP protocol requests
- CVE-2026-48059 — Netty is a network application framework for development of protocol servers and clients (7.5 HIGH)
- CVE-2026-48043 — Netty is a network application framework for development of protocol servers and clients (5.3 MEDIUM)
- CVE-2026-48006 — Netty is a network application framework for development of protocol servers and clients (7.5 HIGH)
- CVE-2026-20746 — Virtual attribute handling in Ping Identity PingDirectory in affected versions allows only authorized users to exhaust java memory heap w...