CVE-2023-52646
In the Linux kernel, the following vulnerability has been resolved: aio: fix mremap after fork null-deref Commit e4a0d3e720e7 ("aio: Make it possible to remap aio ring") introduced a null-deref if mremap is called on an old aio mapping after fork as…
Does this matter?
Lower severity and a low EPSS score (0.24%). Track it; it rarely justifies an emergency change on its own.
Description
In the Linux kernel, the following vulnerability has been resolved: aio: fix mremap after fork null-deref Commit e4a0d3e720e7 ("aio: Make it possible to remap aio ring") introduced a null-deref if mremap is called on an old aio mapping after fork as mm->ioctx_table will be set to NULL. [jmoyer@redhat.com: fix 80 column issue]
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.24% probability · 15th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/178993157e8c50aef7f35d7d6d3b44bb428199e1Patch
- https://git.kernel.org/stable/c/4326d0080f7e84fba775da41d158f46cf9d3f1c2Patch
- https://git.kernel.org/stable/c/808f1e4b5723ae4eda724d2ad6f6638905eefd95Patch
- https://git.kernel.org/stable/c/81e9d6f8647650a7bead74c5f926e29970e834d1Patch
- https://git.kernel.org/stable/c/af126acf01a12bdb04986fd26fc2eb3b40249e0dPatch
- https://git.kernel.org/stable/c/c261f798f7baa8080cf0214081d43d5f86bb073fPatch
- https://git.kernel.org/stable/c/d8dca1bfe9adcae38b35add64977818c0c13dd22Patch
- https://git.kernel.org/stable/c/178993157e8c50aef7f35d7d6d3b44bb428199e1Patch
- https://git.kernel.org/stable/c/4326d0080f7e84fba775da41d158f46cf9d3f1c2Patch
- https://git.kernel.org/stable/c/808f1e4b5723ae4eda724d2ad6f6638905eefd95Patch
- https://git.kernel.org/stable/c/81e9d6f8647650a7bead74c5f926e29970e834d1Patch
- https://git.kernel.org/stable/c/af126acf01a12bdb04986fd26fc2eb3b40249e0dPatch
- https://git.kernel.org/stable/c/c261f798f7baa8080cf0214081d43d5f86bb073fPatch
- https://git.kernel.org/stable/c/d8dca1bfe9adcae38b35add64977818c0c13dd22Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.