CVEvulnerability

CVE-2023-52615

5.5 MEDIUM Published 2024-03-18 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2024-03-18
Last modified
2026-06-17
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-667

Description

In the Linux kernel, the following vulnerability has been resolved: hwrng: core - Fix page fault dead lock on mmap-ed hwrng There is a dead-lock in the hwrng device read path. This triggers when the user reads from /dev/hwrng into memory also mmap-ed from /dev/hwrng. The resulting page fault triggers a recursive read which then dead-locks. Fix this by using a stack buffer when calling copy_to_user.

Affected configurations

• linux linux kernel (>= 2.6.33 < 4.19.307) • linux linux kernel (>= 4.20 < 5.4.269) • linux linux kernel (>= 5.5 < 5.10.210) • linux linux kernel (>= 5.11 < 5.15.149) • linux linux kernel (>= 5.16 < 6.1.76) • linux linux kernel (>= 6.2 < 6.6.15) • linux linux kernel (>= 6.7 < 6.7.3)

Related

Weakness · CWE (1)

  • CWE-667 Improper Locking weakness

References