[SRU][N][PATCH 0/1] CVE-2024-46757

[Bethany Jamison]

[Impact]

DIV_ROUND_CLOSEST() after kstrtol() results in an underflow if a large
negative number such as -9223372036854775808 is provided by the user.
Fix it by reordering clamp_val() and DIV_ROUND_CLOSEST() operations.

[Fix]

Noble:	Clean cherry-pick from linux-6.10.y
Jammy:	pending (5.15.0-125.135)
Focal:	pending (5.4.0-200.220)
Bionic:	fix sent to esm ML
Xenial:	fix sent to esm ML
Trusty:	won't fix

[Test Case]

Compile tested, lack the hardware to boot test.

[Where problems could occur]

This fix affects those who use the driver for the hardware monitoring 
functionality of Nuvoton NCT677x Super-I/O chips, an issue with this
fix would be visible to the user via data corruption or inaccuracy.

Guenter Roeck (1):
  hwmon: (nct6775-core) Fix underflows seen when writing limit
    attributes

 drivers/hwmon/nct6775-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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2.34.1