CVE-2026-64313
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
crypto: ecc - Fix carry overflow in vli multiplication
In the Linux kernel, the following vulnerability has been resolved: crypto: ecc - Fix carry overflow in vli multiplication The carry flag calculation fails when r01.m_high is saturated (0xFFFFFFFFFFFFFFFF) and addition of lower bits overflows. The condition (r01.m_high < product.m_high) doesn't handle the case where r01.m_high == product.m_high and an additional carry exists from lower-bit overflow. When commit 3c4b23901a0c ("crypto: ecdh - Add ECDH software support") introduced crypto/ecc.c, it split the muladd() function in the micro-ecc library into separate mul_64_64() and add_128_128() helpers. It seems the check got lost in translation. Add proper handling for this boundary by accounting for the carry from the lower addition.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 3c4b23901a0c766879dff680cd6bdab47bcdbbd2 | affected | git | d11b2bb99bec1f5557c01cac42231e23745f49b8 | Unavailable | None listed |
| 3c4b23901a0c766879dff680cd6bdab47bcdbbd2 | affected | git | b709e0e768766abe29a49e1c1922a1604be602f4 | Unavailable | None listed |
| 3c4b23901a0c766879dff680cd6bdab47bcdbbd2 | affected | git | 24a54dfa06d09813b4802a374fad3d2c0e16a884 | Unavailable | None listed |
| 3c4b23901a0c766879dff680cd6bdab47bcdbbd2 | affected | git | 677450e5ef850c4d28b7956aa01104548c2a894e | Unavailable | None listed |
| 3c4b23901a0c766879dff680cd6bdab47bcdbbd2 | affected | git | 5275e0fca256d081e2e7d4ba3dd8216c6e50d44e | Unavailable | None listed |
| 3c4b23901a0c766879dff680cd6bdab47bcdbbd2 | affected | git | 774ddddf5eb26eeca177350413e3e2bc50930ee9 | Unavailable | None listed |
| 3c4b23901a0c766879dff680cd6bdab47bcdbbd2 | affected | git | ebaae7c4251cc0cdb2602f334d4f08a3e82d271e | Unavailable | None listed |
| 3c4b23901a0c766879dff680cd6bdab47bcdbbd2 | affected | git | 27b536a2ec8e2f85a0380c2d13c9ecbc7aaab406 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.8 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.8 | Unavailable | None listed |
| 5.10.261 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.212 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.178 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.145 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.96 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.39 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.4 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |