CVE-2022-49058

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: cifs: potential buffer overflow in handling symlinks Smatch printed a warning: arch/x86/crypto/poly1305_glue.c:198 poly1305_update_arch() error: __memcpy() 'dctx->buf' too small (16 vs u32max) It's caused because Smatch marks 'link_len' as untrusted since it comes from sscanf(). Add a check to ensure that 'link_len' is not larger than the size of the 'link_str' buffer.

Affected product and versions

Product

Linux Linux, linux kernel

Affected versions

>= c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 < 3e582749e742e662a8e9bb37cffac62dccaaa1e2, >= c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 < 1316c28569a80ab3596eeab05bf5e01991e7e739, >= c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 < eb5f51756944735ac70cd8bb38637cc202e29c91, >= c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 < 22d658c6c5affed10c8907e67160cef0b6c92186, >= c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 < 4e166a41180be2f1e66bbb6d46448e80a9a5ec05, >= c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 < 9901b07ba42b39266b34a888e48d7306fd707bee, >= c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 < 515e7ba11ef043d6febe69389949c8ef5f25e9d0, >= c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 < 64c4a37ac04eeb43c42d272f6e6c8c12bfcf4304, >= 2.6.37, >= 2.6.37 < 4.9.311, >= 4.10 < 4.14.276, >= 4.15 < 4.19.239, >= 4.20 < 5.4.190, >= 5.5 < 5.10.112, >= 5.11 < 5.15.35, >= 5.16 < 5.17.4, 5.18

Fixed versions

4.9.311, 4.14.276, 4.19.239, 5.4.190, 5.10.112, 5.15.35, 5.17.4

Technical data

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-120