Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: firmware: arm_ffa: Fix out-of-bound writes in ffa_setup_and_transmit() Sashiko (locally) reports multiple out-of-bound issues in ffa_setup_and_transmit: 1) Writing ep_mem_access->reserved can write out of bounds for FFA versions < 1.2 as ffa_emad_size_get() returns 16 bytes in that case while reserved has an offset of 24. Instead of zeroing fields, memset the struct to zero first based on the FFA version. 2) Make sure there is enough size to write constituents. While at it, convert the only sizeof() in the driver that uses a type instead of variable.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 111a833dc5cbef3d05b2a796a7e23cb7f6ff2192 before d312a71b19bb83803c8d1372bc042bd36db657f7; affected 111a833dc5cbef3d05b2a796a7e23cb7f6ff2192 before 00bef9d0f9e787f56ff4699d3b577983ff8b7f24; affected 111a833dc5cbef3d05b2a796a7e23cb7f6ff2192 before cf5708c9d78c98214c62b1e5d049cd527a543b8e; affected 111a833dc5cbef3d05b2a796a7e23cb7f6ff2192 before 27abdaf0c5c89b06694e4c3d8318e8d6a60c1d1b; affected 111a833dc5cbef3d05b2a796a7e23cb7f6ff2192 before 3383ffb7ef937317361713ffcc21921a7848511a; affected 28ebfb74fbf513e0c7cd2674d8c2400ee0220d18; affected 22157f74458106c5900dbd938eb44623c22d97a0; affected b77ec23b6df41c48e88735230e11caec56163630; affected 5.15.114 before 5.16; affected 6.1.31 before 6.2; affected 6.3.5 before 6.4 |
| Linux / Linux | affected 6.4; unaffected 0 before 6.4; unaffected 6.6.160 through 6.6.*; unaffected 6.12.114 through 6.12.*; unaffected 6.18.42 through 6.18.*; unaffected 7.1.6 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/d312a71b19bb83803c8d1372bc042bd36db657f7
- https://git.kernel.org/stable/c/00bef9d0f9e787f56ff4699d3b577983ff8b7f24
- https://git.kernel.org/stable/c/cf5708c9d78c98214c62b1e5d049cd527a543b8e
- https://git.kernel.org/stable/c/27abdaf0c5c89b06694e4c3d8318e8d6a60c1d1b
- https://git.kernel.org/stable/c/3383ffb7ef937317361713ffcc21921a7848511a