CVE-2023-54268
Description
AI Translation Available
In the Linux kernel, the following vulnerability has been resolved:
debugobjects: Don't wake up kswapd from fill_pool()
syzbot is reporting a lockdep warning in fill_pool() because the allocation
from debugobjects is using GFP_ATOMIC, which is (__GFP_HIGH | __GFP_KSWAPD_RECLAIM)
and therefore tries to wake up kswapd, which acquires kswapd_wait::lock.
Since fill_pool() might be called with arbitrary locks held, fill_pool()
should not assume that acquiring kswapd_wait::lock is safe.
Use __GFP_HIGH instead and remove __GFP_NORETRY as it is pointless for
!__GFP_DIRECT_RECLAIM allocation.
EPSS (Exploit Prediction Scoring System)
Trend Analysis
EPSS (Exploit Prediction Scoring System)
Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.
EPSS Score
0,0003
Percentile
0,1th
Updated
EPSS Score Trend (Last 76 Days)
https://git.kernel.org/stable/c/4c088d30a72d9b8f9c6ae9362222942e4075cb00
https://git.kernel.org/stable/c/aee97eec77029270866c704f66cdf2881cbd2fe1
https://git.kernel.org/stable/c/be646802b3dc408c4dc72a3ac32c3f4a0282414d
https://git.kernel.org/stable/c/d7fff52c99d52f180d8bef95d8ed8fec6343889c
https://git.kernel.org/stable/c/eb799279fb1f9c63c520fe8c1c41cb9154252db6
https://git.kernel.org/stable/c/fd673079749bac97bb30f1461df079e6c8e86511