CVE-2023-52679
In the Linux kernel, the following vulnerability has been resolved: of: Fix double free in of_parse_phandle_with_args_map In of_parse_phandle_with_args_map() the inner loop that iterates through the map entries calls of_node_put(new) to free the…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.25%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the Linux kernel, the following vulnerability has been resolved: of: Fix double free in of_parse_phandle_with_args_map In of_parse_phandle_with_args_map() the inner loop that iterates through the map entries calls of_node_put(new) to free the reference acquired by the previous iteration of the inner loop. This assumes that the value of "new" is NULL on the first iteration of the inner loop. Make sure that this is true in all iterations of the outer loop by setting "new" to NULL after its value is assigned to "cur". Extend the unittest to detect the double free and add an additional test case that actually triggers this path.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.25% probability · 16th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-415
- Affected
- linux/linux kernel · debian/debian linux
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/26b4d702c44f9e5cf3c5c001ae619a4a001889dbPatch
- https://git.kernel.org/stable/c/4541004084527ce9e95a818ebbc4e6b293ffca21Patch
- https://git.kernel.org/stable/c/4dde83569832f9377362e50f7748463340c5db6bPatch
- https://git.kernel.org/stable/c/a0a061151a6200c13149dbcdb6c065203c8425d2Patch
- https://git.kernel.org/stable/c/b64d09a4e8596f76d27f4b4a90a1cf6baf6a82f8Patch
- https://git.kernel.org/stable/c/b9d760dae5b10e73369b769073525acd7b3be2bdPatch
- https://git.kernel.org/stable/c/cafa992134124e785609a406da4ff2b54052aff7Patch
- https://git.kernel.org/stable/c/d5f490343c77e6708b6c4aa7dbbfbcbb9546adeaPatch
- https://git.kernel.org/stable/c/26b4d702c44f9e5cf3c5c001ae619a4a001889dbPatch
- https://git.kernel.org/stable/c/4541004084527ce9e95a818ebbc4e6b293ffca21Patch
- https://git.kernel.org/stable/c/4dde83569832f9377362e50f7748463340c5db6bPatch
- https://git.kernel.org/stable/c/a0a061151a6200c13149dbcdb6c065203c8425d2Patch
- https://git.kernel.org/stable/c/b64d09a4e8596f76d27f4b4a90a1cf6baf6a82f8Patch
- https://git.kernel.org/stable/c/b9d760dae5b10e73369b769073525acd7b3be2bdPatch
- https://git.kernel.org/stable/c/cafa992134124e785609a406da4ff2b54052aff7Patch
- https://git.kernel.org/stable/c/d5f490343c77e6708b6c4aa7dbbfbcbb9546adeaPatch
- https://lists.debian.org/debian-lts-announce/2024/06/msg00016.htmlMailing List
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.htmlMailing List
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.