Description
In the Linux kernel, the following vulnerability has been resolved:
ecryptfs: pass packet set buffer size to parser
ecryptfs_parse_packet_set() receives a pointer into the file header, but it calculates the remaining packet buffer size from PAGE_SIZE - 8. For version 1 headers the packet set starts later in the header, so this can overstate the available buffer.
Pass the actual packet set buffer length from the caller and calculate per-packet limits from the remaining bytes in that buffer. Recompute the remaining length after consuming a tag 3 packet before parsing the following tag 11 packet.
Metrics
CVSS 3.1 7.1/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HAffected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 237fead619984cc48818fe12ee0ceada3f55b012, < e7573b0e3058c6bbdfe81673f22c09900fde9e65; >= 237fead619984cc48818fe12ee0ceada3f55b012, < 66a87559ecb26afe80ad512faf728a158e2b81da; >= 237fead619984cc48818fe12ee0ceada3f55b012, < 3bd9bb3e167a7c14a50423f6ff03ee0fb007199d; >= 237fead619984cc48818fe12ee0ceada3f55b012, < 749fa08d8f1b318bd8f4669a14a8a4a8c1bbdaac; >= 237fead619984cc48818fe12ee0ceada3f55b012, < 329de8b9e988b152b938f09224670d97bada0b96; >= 237fead619984cc48818fe12ee0ceada3f55b012, < e5d254e654f2311a3c4b9c791d7f216554bcd17a; >= 237fead619984cc48818fe12ee0ceada3f55b012, < 747fd45be396a6aea3420ab657a0ab4e60185b05; >= 237fead619984cc48818fe12ee0ceada3f55b012, < 2602b79c5b3e2f6fce12e38a670f8e3fda4e46a2 |
| Linux | Linux | 2.6.19 |
References
- https://git.kernel.org/stable/c/2602b79c5b3e2f6fce12e38a670f8e3fda4e46a2
- https://git.kernel.org/stable/c/329de8b9e988b152b938f09224670d97bada0b96
- https://git.kernel.org/stable/c/3bd9bb3e167a7c14a50423f6ff03ee0fb007199d
- https://git.kernel.org/stable/c/66a87559ecb26afe80ad512faf728a158e2b81da
- https://git.kernel.org/stable/c/747fd45be396a6aea3420ab657a0ab4e60185b05
- https://git.kernel.org/stable/c/749fa08d8f1b318bd8f4669a14a8a4a8c1bbdaac
- https://git.kernel.org/stable/c/e5d254e654f2311a3c4b9c791d7f216554bcd17a
- https://git.kernel.org/stable/c/e7573b0e3058c6bbdfe81673f22c09900fde9e65
Timeline
- Published
- Sep 11, 2026
- Last modified
- Oct 19, 2026
- NVD status
- Received