mirror of https://github.com/torvalds/linux.git
002ec15747
Bunch of fixes to address:
1. Issues reported on RK3568 EVB1 and BPI-R2 pro platforms using SCMI.
More checks were added to validate the firmware response but that
resulted in breaking above platforms, so the checks are relaxed when
for cases where there is no potential memory corruption issues.
2. Possible data leak by reading more than required length from the firmware.
Recent addition of support for v3.1 extended names used larger buffers
in the kernel and used their size to read response from the firmware even
for cases where shorter formats are used. While that is mostly harmless
except when firmware sends malformed non-NULL terminated buffers.
3. Possible issues sending unsupported commands to the firmware.
SENSOR_AXIS_NAME_GET added in v3.1 needs to be used only if the firmware
supports it. While the firmware conformant to the spec must return not
supported error for any unsupported features, it is always safer to
avoid issuing commands that are known to be unsupported.
4. Incorrect error propagation in scmi_voltage_descriptors_get.
Since the return value is not reset for each iteration of the loop, the
error value in the previous iteration will be carried for the current one.
Fix that by not saving the return values into local variable.
5. Some warnings reported by cppcheck
-----BEGIN PGP SIGNATURE-----
iQIzBAABCAAdFiEEunHlEgbzHrJD3ZPhAEG6vDF+4pgFAmKmORcACgkQAEG6vDF+
4pgQkQ//Q7GnKFQdxm5r1fpphkFFPC3WKnQk2EU/+AHXXyLdxpg88CHKcWc1k+07
PBwI0gOSLwVERS21m9zRrXUxA7gz6kdBKs6ycMpRt8LNXUYbV3Yxit8F7orKW6oK
oOkCY6dC44Krg7ZXYaWsduoTECgvivoef6JduQru1/1PUBa6Cu5PrviF9sutYuB4
qnHxoTykp2f0jQ9/9KOAcIDHCJGPccV14OK0AAXDcWBZgswnajoZk663Je1g+fxn
0+b7B27DpmtArtTbcyxIgOUHSWP22HoLEoow4JELUXebtQ1CGcxb9I+FBAFzdyPq
hyV/kchkr2hn/KaCzr7aQCDzmbleVxtr+6Ebe6ysokU+g2R/wvexpCVnogu3Pt4I
D9bQ+uX3iLHFTbXj8j0w6pNE4+/FgytVKI2VOv+OM7regDXVsOKPAdIha4n6UoU1
6gaeTjW0ovlylWFFx4etnVJmPh/pF6Ph38hyPlkro/JaI8wylXBSkdkDBPUz5AOc
96Gg1QzTCETGHgKo0If1o+BnByxGOuNoXRFoC82TAxrHdzziLSNpRPj0vcvPm1hZ
Q8e4eKE83bw1xZLFObJQJUf0xAy3cSEdASZfMS0z1KCz5uenih+FeOdJJ3VJunES
1fpfPSA0Px5OUcCzT2J/JJ31I/cnbKrfTJhwmP7An8Iu2AZb9Oc=
=NOFn
-----END PGP SIGNATURE-----
gpgsig -----BEGIN PGP SIGNATURE-----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=Y1Nw
-----END PGP SIGNATURE-----
Merge tag 'scmi-fixes-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into arm/fixes
Arm SCMI firmware driver fixes for v5.19
Bunch of fixes to address:
1. Issues reported on RK3568 EVB1 and BPI-R2 pro platforms using SCMI.
More checks were added to validate the firmware response but that
resulted in breaking above platforms, so the checks are relaxed when
for cases where there is no potential memory corruption issues.
2. Possible data leak by reading more than required length from the firmware.
Recent addition of support for v3.1 extended names used larger buffers
in the kernel and used their size to read response from the firmware even
for cases where shorter formats are used. While that is mostly harmless
except when firmware sends malformed non-NULL terminated buffers.
3. Possible issues sending unsupported commands to the firmware.
SENSOR_AXIS_NAME_GET added in v3.1 needs to be used only if the firmware
supports it. While the firmware conformant to the spec must return not
supported error for any unsupported features, it is always safer to
avoid issuing commands that are known to be unsupported.
4. Incorrect error propagation in scmi_voltage_descriptors_get.
Since the return value is not reset for each iteration of the loop, the
error value in the previous iteration will be carried for the current one.
Fix that by not saving the return values into local variable.
5. Some warnings reported by cppcheck
* tag 'scmi-fixes-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
firmware: arm_scmi: Fix incorrect error propagation in scmi_voltage_descriptors_get
firmware: arm_scmi: Avoid using extended string-buffers sizes if not necessary
firmware: arm_scmi: Fix SENSOR_AXIS_NAME_GET behaviour when unsupported
firmware: arm_scmi: Remove all the unused local variables
firmware: arm_scmi: Relax base protocol sanity checks on the protocol list
Link: https://lore.kernel.org/r/20220614100007.1029881-1-sudeep.holla@arm.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
|
||
|---|---|---|
| .. | ||
| acpi | ||
| asm-generic | ||
| clocksource | ||
| crypto | ||
| drm | ||
| dt-bindings | ||
| keys | ||
| kunit | ||
| kvm | ||
| linux | ||
| math-emu | ||
| media | ||
| memory | ||
| misc | ||
| net | ||
| pcmcia | ||
| ras | ||
| rdma | ||
| scsi | ||
| soc | ||
| sound | ||
| target | ||
| trace | ||
| uapi | ||
| ufs | ||
| vdso | ||
| video | ||
| xen | ||