vulnerability
Dell PowerStoreOS: CVE-2025-21703: DSA-2025-429: Dell PowerStore T Security Update for Multiple Vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:L/Au:S/C:C/I:C/A:C) | Dec 2, 2025 | Dec 3, 2025 | Dec 3, 2025 |
Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
Dec 2, 2025
Added
Dec 3, 2025
Modified
Dec 3, 2025
Description
In the Linux kernel, the following vulnerability has been resolved:
netem: Update sch->q.qlen before qdisc_tree_reduce_backlog()
qdisc_tree_reduce_backlog() notifies parent qdisc only if child
qdisc becomes empty, therefore we need to reduce the backlog of the
child qdisc before calling it. Otherwise it would miss the opportunity
to call cops->qlen_notify(), in the case of DRR, it resulted in UAF
since DRR uses ->qlen_notify() to maintain its active list.
Solution
dell-powerstoreos-upgrade-latest
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