In the Linux kernel, the following vulnerability has been resolved:
atm: iphase: fix possible use-after-free in ia_module_exit()
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-azure-develUpgrade kernel-sourceUpgrade kernel-defaultUpgrade kernel-azure-baseUpgrade kernel-devel-azureUpgrade kernel-obs-buildUpgrade kernel-default-manUpgrade kernel-azureUpgrade kernel-syms-azureUpgrade kernel-docsUpgrade kernel-develUpgrade kernel-macrosUpgrade kernel-default-baseUpgrade kernel-symsUpgrade kernel-default-develUpgrade kernel-source-azureUpgrade kernel-default-extra | Aug 9, 2024 | May 21, 2024 |
| Ubuntu | — | Upgrade linux-gcpUpgrade linux-gcp-fipsUpgrade linuxUpgrade linux-azure-5.4Upgrade linux-azure-4.15Upgrade linux-azureUpgrade linux-awsUpgrade linux-raspi-5.4Upgrade linux-bluefieldUpgrade linux-gcp-4.15Upgrade linux-hweUpgrade linux-aws-5.4Upgrade linux-hwe-5.4Upgrade linux-raspiUpgrade linux-aws-hweUpgrade linux-kvmUpgrade linux-oracle-5.4Upgrade linux-azure-fde-5.15Upgrade linux-gcp-5.4Upgrade linux-azure-fipsUpgrade linux-aws-fipsUpgrade linux-fipsUpgrade linux-gkeopUpgrade linux-oracle | Nov 19, 2024 | May 21, 2024 |
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