| Summary: |
VUL-0: CVE-2024-35882: kernel: SUNRPC: Fix a slow server-side memory leak with RPC-over-TCP |
| Product: |
[Novell Products] SUSE Security Incidents
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Reporter: |
SMASH SMASH <smash_bz> |
| Component: |
Incidents | Assignee: |
Security Team bot <security-team> |
| Status: |
RESOLVED
FIXED
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QA Contact: |
Security Team bot <security-team> |
| Severity: |
Normal
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| Priority: |
P3 - Medium
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CC: |
gabriele.sonnu, jlee
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| Version: |
unspecified | |
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| Target Milestone: |
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| Hardware: |
Other | |
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| OS: |
Other | |
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| URL: |
https://smash.suse.de/issue/406571/
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| Whiteboard: |
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Found By:
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Security Response Team
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Services Priority:
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Business Priority:
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Blocker:
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---
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Marketing QA Status:
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IT Deployment:
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In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Fix a slow server-side memory leak with RPC-over-TCP Jan Schunk reports that his small NFS servers suffer from memory exhaustion after just a few days. A bisect shows that commit e18e157bb5c8 ("SUNRPC: Send RPC message on TCP with a single sock_sendmsg() call") is the first bad commit. That commit assumed that sock_sendmsg() releases all the pages in the underlying bio_vec array, but the reality is that it doesn't. svc_xprt_release() releases the rqst's response pages, but the record marker page fragment isn't one of those, so it is never released. This is a narrow fix that can be applied to stable kernels. A more extensive fix is in the works. References: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-35882 https://www.cve.org/CVERecord?id=CVE-2024-35882 https://git.kernel.org/stable/c/05258a0a69b3c5d2c003f818702c0a52b6fea861 https://git.kernel.org/stable/c/1ba1291172f935e6b6fe703161a948f3347400b8 https://git.kernel.org/stable/c/a2ebedf7bcd17a1194a0a18122c885eb578ee882 https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-35882.mbox