CVE-2022-48627

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Source
https://cve.org/CVERecord?id=CVE-2022-48627
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-48627.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2022-48627
Downstream
Related
Published
2024-03-02T21:31:48.383Z
Modified
2026-03-14T11:56:13.877118Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
Summary
vt: fix memory overlapping when deleting chars in the buffer
Details

In the Linux kernel, the following vulnerability has been resolved:

vt: fix memory overlapping when deleting chars in the buffer

A memory overlapping copy occurs when deleting a long line. This memory overlapping copy can cause data corruption when scr_memcpyw is optimized to memcpy because memcpy does not ensure its behavior if the destination buffer overlaps with the source buffer. The line buffer is not always broken, because the memcpy utilizes the hardware acceleration, whose result is not deterministic.

Fix this problem by using replacing the scrmemcpyw with scrmemmovew.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/48xxx/CVE-2022-48627.json",
    "cna_assigner": "Linux"
}
References

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
Introduced
81732c3b2fede049a692e58a7ceabb6d18ffb18c
Fixed
c8686c014b5e872ba7e334f33ca553f14446fc29
Fixed
815be99d934e3292906536275f2b8d5131cdf52c
Fixed
bfee93c9a6c395f9aa62268f1cedf64999844926
Fixed
57964a5710252bc82fe22d9fa98c180c58c20244
Fixed
14d2cc21ca622310babf373e3a8f0b40acfe8265
Fixed
39cdb68c64d84e71a4a717000b6e5de208ee60cc

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-48627.json"