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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-53082 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: net: hamradio: 6pack: fix uninit-value in sixpack_receive_buf sixpack_receive_buf() does not properly skip bytes with TTY error flags. The while loop iterates through the flags buffer but never advances the data pointer (cp), and passes the original count (including error bytes) to sixpack_decode(). This causes sixpack_decode() to process bytes that should have been skipped due to TTY errors. The TTY layer does not guarantee that cp[i] holds a meaningful value when fp[i] is set, so passing those positions to sixpack_decode() results in KMSAN reporting an uninit-value read. Fix this by processing bytes one at a time, advancing cp on each iteration, and only passing valid (non-error) bytes to sixpack_decode(). This matches the pattern used by slip_receive_buf() and mkiss_receive_buf() for the same purpose.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/1d3abf0c3ddeefc6f6d913aa129acc06fce8240a kernel.org
https://git.kernel.org/stable/c/2951656b0de00153f2687f3a093890bce72b6215 kernel.org
https://git.kernel.org/stable/c/578f3aba427c938fecfa0d8c83d9acb213a9b24a kernel.org
https://git.kernel.org/stable/c/987af7625ceb1ee59d70eb0abd7af11c75e45d79 kernel.org
https://git.kernel.org/stable/c/bf9a38803b2626b01cc769aaf13485d8650f576f kernel.org
https://git.kernel.org/stable/c/d4cceb5184538613572fb79319453f281b1eeacb kernel.org
https://git.kernel.org/stable/c/d9ce2a4b679122397d7f35bad7be46913ad1ca80 kernel.org
https://git.kernel.org/stable/c/e9cf4018d74237d142cd66243c821d13593270f0 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-53082
NVD Published Date:
06/24/2026
NVD Last Modified:
06/24/2026
Source:
kernel.org