Bug 2278348 (CVE-2024-26977) - CVE-2024-26977 kernel: pci_iounmap(): Fix MMIO mapping leak
Summary: CVE-2024-26977 kernel: pci_iounmap(): Fix MMIO mapping leak
Keywords:
Status: NEW
Alias: CVE-2024-26977
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2278349
Blocks: 2278552
TreeView+ depends on / blocked
 
Reported: 2024-05-01 19:35 UTC by Zack Miele
Modified: 2024-10-01 21:04 UTC (History)
49 users (show)

Fixed In Version: kernel 5.15.154, kernel 6.1.84, kernel 6.6.24, kernel 6.7.12, kernel 6.8.3, kernel 6.9-rc1
Doc Type: If docs needed, set a value
Doc Text:
A vulnerability was found in the pci_iounmap() function in the Linux Kernel, where a lack of proper checks can result in memory leakage. This occurs due to the #ifdef ARCH_HAS_GENERIC_IOPORT_MAP macro which also guards the iounmap() function, causing MMIO mappings to leak. This issue can lead to resource exhaustion over time.
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Environment:
Last Closed:
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Description Zack Miele 2024-05-01 19:35:15 UTC 
In the Linux kernel, the following vulnerability has been resolved:

pci_iounmap(): Fix MMIO mapping leak

The Linux kernel CVE team has assigned CVE-2024-26977 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024050133-CVE-2024-26977-cf63@gregkh/T
Comment 1 Zack Miele 2024-05-01 19:35:46 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2278349]
Comment 2 Alex 2024-06-09 12:45:04 UTC 
The result of automatic check (that is developed by Alexander Larkin) for this CVE-2024-26977 is: 	SKIP	The Fixes patch not applied yet, so unlikely that actual: 316e8d79a0959c302b0c462ab64b069599f10eef	YES			NO	NO	unknown (where first YES/NO value means if related sources built).
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