Bug 2300513 (CVE-2024-42075) - CVE-2024-42075 kernel: bpf: Fix remap of arena.
Summary: CVE-2024-42075 kernel: bpf: Fix remap of arena.
Keywords:
Status: NEW
Alias: CVE-2024-42075
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2301710
Blocks:
TreeView+ depends on / blocked
 
Reported: 2024-07-29 16:27 UTC by OSIDB Bzimport
Modified: 2024-07-31 04:36 UTC (History)
4 users (show)

Fixed In Version: kernel 6.9.8, kernel 6.10
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2024-07-29 16:27:56 UTC 
In the Linux kernel, the following vulnerability has been resolved:

bpf: Fix remap of arena.

The bpf arena logic didn't account for mremap operation. Add a refcnt for
multiple mmap events to prevent use-after-free in arena_vm_close.
Comment 1 Mauro Matteo Cascella 2024-07-30 16:44:03 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024072954-CVE-2024-42075-febc@gregkh/T
Comment 2 Mauro Matteo Cascella 2024-07-30 16:44:23 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2301710]
Note You need to log in before you can comment on or make changes to this bug.