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THREATINT
PUBLISHED

CVE-2024-53151

svcrdma: Address an integer overflow



Description

In the Linux kernel, the following vulnerability has been resolved: svcrdma: Address an integer overflow Dan Carpenter reports: > Commit 78147ca8b4a9 ("svcrdma: Add a "parsed chunk list" data > structure") from Jun 22, 2020 (linux-next), leads to the following > Smatch static checker warning: > > net/sunrpc/xprtrdma/svc_rdma_recvfrom.c:498 xdr_check_write_chunk() > warn: potential user controlled sizeof overflow 'segcount * 4 * 4' > > net/sunrpc/xprtrdma/svc_rdma_recvfrom.c > 488 static bool xdr_check_write_chunk(struct svc_rdma_recv_ctxt *rctxt) > 489 { > 490 u32 segcount; > 491 __be32 *p; > 492 > 493 if (xdr_stream_decode_u32(&rctxt->rc_stream, &segcount)) > ^^^^^^^^ > > 494 return false; > 495 > 496 /* A bogus segcount causes this buffer overflow check to fail. */ > 497 p = xdr_inline_decode(&rctxt->rc_stream, > --> 498 segcount * rpcrdma_segment_maxsz * sizeof(*p)); > > > segcount is an untrusted u32. On 32bit systems anything >= SIZE_MAX / 16 will > have an integer overflow and some those values will be accepted by > xdr_inline_decode().

Reserved 2024-11-19 | Published 2024-12-24 | Updated 2025-01-20 | Assigner Linux

Product status

Default status
unaffected

78147ca8b4a9b6cf0e597ddd6bf17959e08376c2 before 21e1cf688fb0397788c8dd42e1e0b08d58ac5c7b
affected

78147ca8b4a9b6cf0e597ddd6bf17959e08376c2 before c1f8195bf68edd2cef0f18a4cead394075a54b5a
affected

78147ca8b4a9b6cf0e597ddd6bf17959e08376c2 before 838dd342962cef4c320632a5af48d3c31f2f9877
affected

78147ca8b4a9b6cf0e597ddd6bf17959e08376c2 before 4cbc3ba6dc2f746497cade60bcbaa82ae3696689
affected

78147ca8b4a9b6cf0e597ddd6bf17959e08376c2 before e5c440c227ecdc721f2da0dd88b6358afd1031a7
affected

78147ca8b4a9b6cf0e597ddd6bf17959e08376c2 before 3c63d8946e578663b868cb9912dac616ea68bfd0
affected

Default status
affected

5.11
affected

Any version before 5.11
unaffected

5.15.174
unaffected

6.1.120
unaffected

6.6.64
unaffected

6.11.11
unaffected

6.12.2
unaffected

6.13
unaffected

References

git.kernel.org/...c/21e1cf688fb0397788c8dd42e1e0b08d58ac5c7b

git.kernel.org/...c/c1f8195bf68edd2cef0f18a4cead394075a54b5a

git.kernel.org/...c/838dd342962cef4c320632a5af48d3c31f2f9877

git.kernel.org/...c/4cbc3ba6dc2f746497cade60bcbaa82ae3696689

git.kernel.org/...c/e5c440c227ecdc721f2da0dd88b6358afd1031a7

git.kernel.org/...c/3c63d8946e578663b868cb9912dac616ea68bfd0

cve.org (CVE-2024-53151)

nvd.nist.gov (CVE-2024-53151)

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