CVE-2023-53987
- Source
- https://cve.org/CVERecord?id=CVE-2023-53987
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53987.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2023-53987
- Downstream
- Published
- 2025-12-24T10:55:27Z
- Modified
- 2026-10-08T02:48:35Z
- Summary
- ping: Fix potentail NULL deref for /proc/net/icmp.
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
ping: Fix potentail NULL deref for /proc/net/icmp.
After commit dbca1596bbb0 ("ping: convert to RCU lookups, get rid of rwlock"), we use RCU for ping sockets, but we should use spinlock for /proc/net/icmp to avoid a potential NULL deref mentioned in the previous patch.
Let's go back to using spinlock there.
Note we can convert ping sockets to use hlist instead of hlist_nulls because we do not use SLAB_TYPESAFE_BY_RCU for ping sockets.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53987.json" }- References
-
- https://git.kernel.org/stable/c/176cbb6da28f36506cc60a4bec4ab8df0c16713a
- https://git.kernel.org/stable/c/5a08a32e624908890aa0a2eb442bb6a7669891a8
- https://git.kernel.org/stable/c/ab5fb73ffa01072b4d8031cc05801fa1cb653bee
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53987.json
- https://nvd.nist.gov/vuln/detail/CVE-2023-53987
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduceddbca1596bbb08318f5e3b3b99f8ca0a0d3830a65Fixed5a08a32e624908890aa0a2eb442bb6a7669891a8Fixed176cbb6da28f36506cc60a4bec4ab8df0c16713aFixedab5fb73ffa01072b4d8031cc05801fa1cb653bee
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced5.19.2Fixed5.20
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedde3d723a3985f282a8c9e468d1e198616eb291c8