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CVE-2026-89925

KVM: s390: Fix memory leak in guest debug handling

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110, and 2 more
None on Exploit-DB, Metasploit or GitHub

Summary

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: Fix memory leak in guest debug handling bp_data is freed only for the error case by kfree(bp_data). Every successful KVM_SET_GUEST_DEBUG will leak bp_data.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Linux Linux

    From 27291e2165b6de70c476b7b675308113edd69a60 · fixed in 39e7cebb889839b5762c9ad22e2d715b5883b288; From 27291e2165b6de70c476b7b675308113edd69a60 · fixed in 58b1b729a9f90c80b508fc3e2174cbc0ee50859e; From 27291e2165b6de70c476b7b675308113edd69a60 · fixed in 9071f75cbde3bf46119cb28e92cfbef830c4bf97; From 27291e2165b6de70c476b7b675308113edd69a60 · fixed in 5940418e4232a2ff1d30ba12e0d213dbf48f0a83; From 27291e2165b6de70c476b7b675308113edd69a60 · fixed in fc2034c431adcbaabf5f8a01912358f07355349e; From 27291e2165b6de70c476b7b675308113edd69a60 · fixed in 44bf3792c10f4bb3de507391f1837e020d92eaa2; From 27291e2165b6de70c476b7b675308113edd69a60 · fixed in 581be9f6085834188cef1ad2f07babf3b421e409; From 27291e2165b6de70c476b7b675308113edd69a60 · fixed in 121ea1de927c8b9bfdf53c31cad27b86d5de0293

  • Linux Linux

    3.16

  • KernelLinux

    From 3.16.0 · fixed in 5.10.270; From 5.11.0 · fixed in 5.15.221; From 5.16.0 · fixed in 6.1.188; From 6.2.0 · fixed in 6.6.157; From 6.7.0 · fixed in 6.12.110; From 6.13.0 · fixed in 6.18.51; From 6.19.0 · fixed in 7.2.5

References 8

git.kernel.org