UBUNTU-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 mm->ioctx_table will be set to NULL. [[email protected]: fix 80 column issue]
02 / AFFECTED SOFTWARE
Affected packages
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23 explicit affected versions
56 explicit affected versions
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76 explicit affected versions
55 explicit affected versions
43 explicit affected versions
22 explicit affected versions
127 explicit affected versions
10 explicit affected versions
8 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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. [[email protected]: fix 80 column issue]
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/81e9d6f8647650a7bead74c5f926e29970e834d1
- https://git.kernel.org/stable/c/178993157e8c50aef7f35d7d6d3b44bb428199e1
- https://git.kernel.org/stable/c/4326d0080f7e84fba775da41d158f46cf9d3f1c2
- https://git.kernel.org/stable/c/808f1e4b5723ae4eda724d2ad6f6638905eefd95
- https://git.kernel.org/stable/c/81e9d6f8647650a7bead74c5f926e29970e834d1
- https://git.kernel.org/stable/c/af126acf01a12bdb04986fd26fc2eb3b40249e0d
- https://git.kernel.org/stable/c/c261f798f7baa8080cf0214081d43d5f86bb073f
- https://git.kernel.org/stable/c/d8dca1bfe9adcae38b35add64977818c0c13dd22
- https://ubuntu.com/security/CVE-2023-52646
- https://ubuntu.com/security/notices/USN-8548-1
- https://ubuntu.com/security/notices/USN-8548-2
- https://www.cve.org/CVERecord?id=CVE-2023-52646