Entreprise française de cybersécurité depuis 2004
☎ 03 60 47 09 81 - info@securiteinfo.com
☎ 03 60 47 09 81 - info@securiteinfo.com
In the Linux kernel, the following vulnerability has been resolved:HID: core: Harden s32ton() against conversion to 0 bitsTesting by the syzbot fuzzer showed that the HID core gets ashift-out-of-bounds exception when it tries to convert a 32-bitquantity to a 0-bit quantity. Ideally this should never occur, butthere are buggy devices and some might have a report field with sizeset to zero; we shouldn't reject the report or the device just becauseof that.Instead, harden the s32ton() routine so that it returns a reasonableresult instead of crashing when it is called with the number of bitsset to 0 -- the same as what snto32() does.
No PoCs from references.
- https://github.com/w4zu/Debian_security