Description
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 products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 to < 3e582749e742e662a8e9bb37cffac62dccaaa1e2affectedc69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 to < 1316c28569a80ab3596eeab05bf5e01991e7e739affectedc69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 to < eb5f51756944735ac70cd8bb38637cc202e29c91affectedc69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 to < 22d658c6c5affed10c8907e67160cef0b6c92186affectedc69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 to < 4e166a41180be2f1e66bbb6d46448e80a9a5ec05affectedc69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 to < 9901b07ba42b39266b34a888e48d7306fd707beeaffectedc69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 to < 515e7ba11ef043d6febe69389949c8ef5f25e9d0affectedc69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131 to < 64c4a37ac04eeb43c42d272f6e6c8c12bfcf4304affected
Linux Linux
Default version status: affected
2.6.37affected0 to < 2.6.37unaffected4.9.311 to ≤ 4.9.*unaffected4.14.276 to ≤ 4.14.*unaffected4.19.239 to ≤ 4.19.*unaffected5.4.190 to ≤ 5.4.*unaffected5.10.112 to ≤ 5.10.*unaffected5.15.35 to ≤ 5.15.*unaffected5.17.4 to ≤ 5.17.*unaffected5.18 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/3e582749e742e662a8e9bb37cffac62dccaaa1e2 ↗
- https://git.kernel.org/stable/c/1316c28569a80ab3596eeab05bf5e01991e7e739 ↗
- https://git.kernel.org/stable/c/eb5f51756944735ac70cd8bb38637cc202e29c91 ↗
- https://git.kernel.org/stable/c/22d658c6c5affed10c8907e67160cef0b6c92186 ↗
- https://git.kernel.org/stable/c/4e166a41180be2f1e66bbb6d46448e80a9a5ec05 ↗
- https://git.kernel.org/stable/c/9901b07ba42b39266b34a888e48d7306fd707bee ↗
- https://git.kernel.org/stable/c/515e7ba11ef043d6febe69389949c8ef5f25e9d0 ↗
- https://git.kernel.org/stable/c/64c4a37ac04eeb43c42d272f6e6c8c12bfcf4304 ↗