In the Linux kernel, the following vulnerability has been resolved:
atm: nicstar: Fix possible use-after-free in nicstar_cleanup()
This module's remove path calls del_timer(). However, that function does not wait until the timer handler finishes. This means that the timer handler may still be running after the driver's remove function has finished, which would result in a use-after-free.
Fix by calling del_timer_sync(), which makes sure the timer handler has finished, and unable to re-schedule itself.
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 30, 2024 | May 21, 2024 |
| Suse | — | Upgrade kernel-develUpgrade kernel-symsUpgrade kernel-default-extraUpgrade kernel-devel-azureUpgrade kernel-macrosUpgrade kernel-default-baseUpgrade kernel-azure-baseUpgrade kernel-default-develUpgrade kernel-source-azureUpgrade kernel-sourceUpgrade kernel-azureUpgrade kernel-defaultUpgrade kernel-obs-buildUpgrade kernel-azure-develUpgrade kernel-syms-azureUpgrade kernel-default-manUpgrade kernel-docs | Aug 9, 2024 | May 21, 2024 |
| Ubuntu | — | Upgrade linux-azure-fipsUpgrade linux-aws-5.4Upgrade linux-oracle-5.4Upgrade linux-aws-fipsUpgrade linux-azureUpgrade linux-aws-hweUpgrade linux-gkeopUpgrade linux-hwe-5.4Upgrade linux-gcp-5.4Upgrade linux-fipsUpgrade linux-raspiUpgrade linux-azure-fde-5.15Upgrade linuxUpgrade linux-kvmUpgrade linux-oracleUpgrade linux-gcpUpgrade linux-awsUpgrade linux-gcp-fipsUpgrade linux-raspi-5.4Upgrade linux-gcp-4.15Upgrade linux-azure-4.15Upgrade linux-hweUpgrade linux-bluefieldUpgrade linux-azure-5.4 | Nov 19, 2024 | May 21, 2024 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub