In the Linux kernel, the following vulnerability has been resolved:

Revert "readahead: properly shorten readahead when falling back to do_page_cache_ra()"

This reverts commit 7c877586da3178974a8a94577b6045a48377ff25.

Anders and Philippe have reported that recent kernels occasionally hang
when used with NFS in readahead code. The problem has been bisected to
7c877586da3 ("readahead: properly shorten readahead when falling back to
do_page_cache_ra()"). The cause of the problem is that ra->size can be
shrunk by read_pages() call and subsequently we end up calling
do_page_cache_ra() with negative (read huge positive) number of pages.
Let's revert 7c877586da3 for now until we can find a proper way how the
logic in read_pages() and page_cache_ra_order() can coexist. This can
lead to reduced readahead throughput due to readahead window confusion but
that's better than outright hangs.

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Source ID Title
EUVD EUVD EUVD-2024-53769 In the Linux kernel, the following vulnerability has been resolved: Revert "readahead: properly shorten readahead when falling back to do_page_cache_ra()" This reverts commit 7c877586da3178974a8a94577b6045a48377ff25. Anders and Philippe have reported that recent kernels occasionally hang when used with NFS in readahead code. The problem has been bisected to 7c877586da3 ("readahead: properly shorten readahead when falling back to do_page_cache_ra()"). The cause of the problem is that ra->size can be shrunk by read_pages() call and subsequently we end up calling do_page_cache_ra() with negative (read huge positive) number of pages. Let's revert 7c877586da3 for now until we can find a proper way how the logic in read_pages() and page_cache_ra_order() can coexist. This can lead to reduced readahead throughput due to readahead window confusion but that's better than outright hangs.
Ubuntu USN Ubuntu USN USN-7379-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-7379-2 Linux kernel (Raspberry Pi) vulnerabilities
Ubuntu USN Ubuntu USN USN-7380-1 Linux kernel (Low Latency) vulnerabilities
Ubuntu USN Ubuntu USN USN-7381-1 Linux kernel (Low Latency) vulnerabilities
Ubuntu USN Ubuntu USN USN-7382-1 Linux kernel (OEM) vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 17 Oct 2025 15:30:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:*

Thu, 13 Feb 2025 01:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-704
Metrics threat_severity

Low

threat_severity

Moderate


Tue, 14 Jan 2025 08:45:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Low


Sat, 11 Jan 2025 14:45:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: Revert "readahead: properly shorten readahead when falling back to do_page_cache_ra()" This reverts commit 7c877586da3178974a8a94577b6045a48377ff25. Anders and Philippe have reported that recent kernels occasionally hang when used with NFS in readahead code. The problem has been bisected to 7c877586da3 ("readahead: properly shorten readahead when falling back to do_page_cache_ra()"). The cause of the problem is that ra->size can be shrunk by read_pages() call and subsequently we end up calling do_page_cache_ra() with negative (read huge positive) number of pages. Let's revert 7c877586da3 for now until we can find a proper way how the logic in read_pages() and page_cache_ra_order() can coexist. This can lead to reduced readahead throughput due to readahead window confusion but that's better than outright hangs.
Title Revert "readahead: properly shorten readahead when falling back to do_page_cache_ra()"
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2025-05-04T10:05:21.323Z

Reserved: 2025-01-11T12:34:02.622Z

Link: CVE-2024-57839

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2025-01-11T15:15:07.050

Modified: 2025-10-17T15:26:12.860

Link: CVE-2024-57839

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-01-11T00:00:00Z

Links: CVE-2024-57839 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2025-07-12T15:42:30Z

Weaknesses