Riskcovery

CVE-2026-63860

RDMA/core: Prefer NLA_NUL_STRING

State
Published
Severity
8.4 High
Published
Jul 19, 2026
Updated
Oct 19, 2026
Reserved
Jul 19, 2026

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

RDMA/core: Prefer NLA_NUL_STRING

These attributes are evaluated as c-string (passed to strcmp), but NLA_STRING doesn't check for the presence of a \0 terminator.

Either this needs to switch to nla_strcmp() and needs to adjust printf fmt specifier to not use plain %s, or this needs to use NLA_NUL_STRING.

As the code has been this way for long time, it seems to me that userspace does include the terminating nul, even tough its not enforced so far, and thus NLA_NUL_STRING use is the simpler solution.

Scores

CVSSScoreVectorSource
3.18.4 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLinux

Weaknesses

Affected Products

ProductVersions
LinuxLinux
  • 30dc5e63d6a5ad24894b5512d10b228d73645a44 to before fcd07d3b8ee7a39b344d73aed69c1a68cd9eacdfAffected
  • 30dc5e63d6a5ad24894b5512d10b228d73645a44 to before 87111356d58d86edb221ba144d261ed83a5b8bbeAffected
  • 30dc5e63d6a5ad24894b5512d10b228d73645a44 to before abda65bdd13084c771842adaac1f652d0660dd82Affected
  • 30dc5e63d6a5ad24894b5512d10b228d73645a44 to before 137b5918931d4d05aa8ea8d3adf67f7224eef63cAffected
  • 30dc5e63d6a5ad24894b5512d10b228d73645a44 to before 5877c043398d5fa0e93919a3d837e5cd7a98a961Affected
  • 30dc5e63d6a5ad24894b5512d10b228d73645a44 to before f2c7b39dde2e61df8157066969cc2a408cd3dcd9Affected
  • 30dc5e63d6a5ad24894b5512d10b228d73645a44 to before c26a0052cceed4c4d380ee5808b699f937fb58d8Affected
  • 30dc5e63d6a5ad24894b5512d10b228d73645a44 to before 6ed3d14fc45d3da6025e7fe4a6a09066856698e2Affected
LinuxLinux
  • 3.16Affected
  • before 3.16Not affected
  • 5.10.258 through 5.10.*Not affected
  • 5.15.209 through 5.15.*Not affected
  • 6.1.175 through 6.1.*Not affected
  • 6.6.141 through 6.6.*Not affected
  • 6.12.91 through 6.12.*Not affected
  • 6.18.33 through 6.18.*Not affected
  • 7.0.10 through 7.0.*Not affected
  • 7.1 and laterNot affected

References

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