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| author | Akshay Gupta <[email protected]> | 2025-07-16 11:07:27 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2025-07-16 13:02:45 +0000 |
| commit | e108b0a5d339aca9661cd93eb4258b2c661e11e8 (patch) | |
| tree | ec642138a4cbbbe797080d63a847485602a818fc /fs/btrfs/dev-replace.c | |
| parent | comedi: comedi_test: Fix possible deletion of uninitialized timers (diff) | |
| download | kernel-e108b0a5d339aca9661cd93eb4258b2c661e11e8.tar.gz kernel-e108b0a5d339aca9661cd93eb4258b2c661e11e8.zip | |
misc: amd-sbi: Address potential integer overflow issue reported in smatch
Smatch warnings are reported for below commit,
Commit bb13a84ed6b7 ("misc: amd-sbi: Add support for CPUID protocol")
from Apr 28, 2025 (linux-next), leads to the following Smatch static
checker warning:
drivers/misc/amd-sbi/rmi-core.c:132 rmi_cpuid_read() warn: bitwise OR is zero '0xffffffff00000000 & 0xffff'
drivers/misc/amd-sbi/rmi-core.c:132 rmi_cpuid_read() warn: potential integer overflow from user 'msg->cpu_in_out << 32'
drivers/misc/amd-sbi/rmi-core.c:213 rmi_mca_msr_read() warn: bitwise OR is zero '0xffffffff00000000 & 0xffff'
drivers/misc/amd-sbi/rmi-core.c:213 rmi_mca_msr_read() warn: potential integer overflow from user 'msg->mcamsr_in_out << 32'
CPUID & MCAMSR thread data from input is available at byte 4 & 5, this
patch fixes to copy the user data correctly in the argument.
Previously, CPUID and MCAMSR data is return only for thread 0.
Fixes: bb13a84ed6b7 ("misc: amd-sbi: Add support for CPUID protocol")
Fixes: 69b1ba83d21c ("misc: amd-sbi: Add support for read MCA register protocol")
Reported-by: Dan Carpenter <[email protected]>
Closes: https://lore.kernel.org/all/[email protected]/
Reviewed-by: Naveen Krishna Chatradhi <[email protected]>
Signed-off-by: Akshay Gupta <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'fs/btrfs/dev-replace.c')
0 files changed, 0 insertions, 0 deletions