CVE-2026-98405: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix missing iov bounds check in parse_posix_sids() In parse_posix_sids(), sidsbuf_end is calculated using the server-supplied out_len without being validated against the actual length of the received iov (iov_len). If a server provides an inflated out_len, sidsbuf_end will point past the end of the iov. This defeats the bounds guards in posix_info_sid_size(), allowing out-of-bounds reads into adjacent kernel memory. Fix this by rejecting responses where the calculated sidsbuf_end would exceed the received iov boundaries or cause pointer wraparound.

Засегнати продукти

• Linux Linux: a90f37e3d7acfd9824f162830583bbf7846fe252 преди d91b9a3b2b38e5ac1b51e9e5b23fe53ad7b49644; 858e74876c5cbff1dfd5bace99e32fbce2abd4b5 преди b862996e5105be1293da9cdc85da77b76021c3bd; 858e74876c5cbff1dfd5bace99e32fbce2abd4b5 преди 2f8ed71aaaba3bc8b19cd9930cc62e63e142b299; 858e74876c5cbff1dfd5bace99e32fbce2abd4b5 преди eac6917a42899aad0617bbf04798c5dd946a1fe5; 858e74876c5cbff1dfd5bace99e32fbce2abd4b5 преди b09d092eb24ad0110f16a9b7c1ed5d2a0c1733dc; 6.6.32 преди 6.6.158
• Linux Linux: 6.8; преди 6.8; 6.6.158 до 6.6.*; 6.12.112 до 6.12.*; 6.18.54 до 6.18.*; 7.2.8 до 7.2.*; от 7.3 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-98405
• https://nvd.nist.gov/vuln/detail/CVE-2026-98405
• https://git.kernel.org/stable/c/d91b9a3b2b38e5ac1b51e9e5b23fe53ad7b49644
• https://git.kernel.org/stable/c/b862996e5105be1293da9cdc85da77b76021c3bd
• https://git.kernel.org/stable/c/2f8ed71aaaba3bc8b19cd9930cc62e63e142b299
• https://git.kernel.org/stable/c/eac6917a42899aad0617bbf04798c5dd946a1fe5
• https://git.kernel.org/stable/c/b09d092eb24ad0110f16a9b7c1ed5d2a0c1733dc