In the Linux kernel, the following vulnerability has been resolved: crypto: ecdsa - Harden against integer overflows in DIV_ROUND_UP() Herbert notes that DIV_ROUND_UP() may overflow unnecessarily i…
High CVSS 7.0
Summary
In the Linux kernel, the following vulnerability has been resolved: crypto: ecdsa - Harden against integer overflows in DIV_ROUND_UP() Herbert notes that DIV_ROUND_UP() may overflow unnecessarily if an ecdsa implementation's ->key_size() callback returns an unusually large value. Herbert instead suggests (for a division by 8): X / 8 + !!(X & 7) Based on this formula, introduce a generic DIV_ROUND_UP_POW2() macro and use it in lieu of DIV_ROUND_UP() for ->key_size() return values. Additio…
In-depth triage · Auto channel
No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).
Affected products
- :
Sources
- NVD DATABASE
Original Links
- https://git.kernel.org/stable/c/921b8167f10708e38080f84e195cdc68a7a561f1 Patch
- https://git.kernel.org/stable/c/b16510a530d1e6ab9683f04f8fb34f2e0f538275 Patch
- https://git.kernel.org/stable/c/f02f0218be412cff1c844addf58e002071be298b Patch
- https://git.kernel.org/stable/c/f2133b849ff273abddb6da622daddd8f6f6fa448 Patch
Timeline
- nvd_ingest NVD