CVE-2023-52502: net: nfc: fix races in nfc_llcp_sock_get() and nfc_llcp_sock_get_sn()
First published: Sat Mar 02 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: net: nfc: fix races in nfc_llcp_sock_get() and nfc_llcp_sock_get_sn() Sili Luo reported a race in nfc_llcp_sock_get(), leading to UAF. Getting a reference on the socket found in a lookup while holding a lock should happen before releasing the lock. nfc_llcp_sock_get_sn() has a similar problem. Finally nfc_llcp_recv_snl() needs to make sure the socket found by nfc_llcp_sock_from_sn() does not disappear.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.112-1 6.11.9-1 6.11.10-1 |
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Reference Links
- https://git.kernel.org/stable/c/31c07dffafce914c1d1543c135382a11ff058d93
- https://git.kernel.org/stable/c/6ac22ecdaad2ecc662048f8c6b0ceb1ca0699ef9
- https://git.kernel.org/stable/c/7adcf014bda16cdbf804af5c164d94d5d025db2d
- https://git.kernel.org/stable/c/d1af8a39cf839d93c8967fdd858f6bbdc3e4a15c
- https://git.kernel.org/stable/c/d888d3f70b0de32b4f51534175f039ddab15eef8
- https://git.kernel.org/stable/c/e4f2611f07c87b3ddb57c4b9e8efcd1e330fc3dc
- https://git.kernel.org/stable/c/e863f5720a5680e50c4cecf12424d7cc31b3eb0a
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52502
- https://nvd.nist.gov/vuln/detail/CVE-2023-52502
- https://launchpad.net/bugs/cve/CVE-2023-52502
- https://security-tracker.debian.org/tracker/CVE-2023-52502
- https://ubuntu.com/security/CVE-2023-52502
- https://git.kernel.org/linus/31c07dffafce914c1d1543c135382a11ff058d93
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