Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scpi: reject DVFS OPP count above MAX_DVFS_OPPS scpi_dvfs_get_info() already rejected a zero opp_count, but still trusted any larger value from the SCP firmware. The shared-memory reply only holds MAX_DVFS_OPPS entries in buf.opps[]; a bigger count over-reads that array and then sizes the allocated OPP table incorrectly (garbage OPPs / OOB). The missing upper bound dates back to the original SCPI DVFS support. Reject zero and out-of-range counts in one check and return -EINVAL.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 8cb7cf56c9fe5412de238465b27ef35b4d2801aa before e9887eeaa138c6b5697af3d2f7c71dc82407b154; affected 8cb7cf56c9fe5412de238465b27ef35b4d2801aa before 1aadbef648e92ca642125f188f99b0a26628e3ba; affected 8cb7cf56c9fe5412de238465b27ef35b4d2801aa before 7daaa684097377b66b98a832de307688a7f3bbc7; affected 8cb7cf56c9fe5412de238465b27ef35b4d2801aa before f17865332cc4ceaac846bcd7c28badbaedfabeff; affected 8cb7cf56c9fe5412de238465b27ef35b4d2801aa before 0130f9ad3974a5b2ad0fa03d0b300a9fb83ed901; affected 8cb7cf56c9fe5412de238465b27ef35b4d2801aa before 69ec03cd481973e4be44a7158ed6c0fa06a9a5f9; affected 8cb7cf56c9fe5412de238465b27ef35b4d2801aa before cc563a59aded6f3b02d75dcc3c0bc5e90755d99e; affected 8cb7cf56c9fe5412de238465b27ef35b4d2801aa before 32471d84a487c7fd74532bc96be56f8028cf4a3f |
| Linux / Linux | affected 4.4; unaffected 0 before 4.4; unaffected 5.10.271 through 5.10.*; unaffected 5.15.222 through 5.15.*; unaffected 6.1.189 through 6.1.*; unaffected 6.6.158 through 6.6.*; unaffected 6.12.112 through 6.12.*; unaffected 6.18.54 through 6.18.*; unaffected 7.2.8 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/e9887eeaa138c6b5697af3d2f7c71dc82407b154
- https://git.kernel.org/stable/c/1aadbef648e92ca642125f188f99b0a26628e3ba
- https://git.kernel.org/stable/c/7daaa684097377b66b98a832de307688a7f3bbc7
- https://git.kernel.org/stable/c/f17865332cc4ceaac846bcd7c28badbaedfabeff
- https://git.kernel.org/stable/c/0130f9ad3974a5b2ad0fa03d0b300a9fb83ed901
- https://git.kernel.org/stable/c/69ec03cd481973e4be44a7158ed6c0fa06a9a5f9
- https://git.kernel.org/stable/c/cc563a59aded6f3b02d75dcc3c0bc5e90755d99e
- https://git.kernel.org/stable/c/32471d84a487c7fd74532bc96be56f8028cf4a3f