{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-53138","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-11-19T17:17:24.996Z","datePublished":"2024-12-04T14:20:43.395Z","dateUpdated":"2026-08-05T11:44:01.599Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-05T11:44:01.599Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5e: kTLS, Fix incorrect page refcounting\n\nThe kTLS tx handling code is using a mix of get_page() and\npage_ref_inc() APIs to increment the page reference. But on the release\npath (mlx5e_ktls_tx_handle_resync_dump_comp()), only put_page() is used.\n\nThis is an issue when using pages from large folios: the get_page()\nreferences are stored on the folio page while the page_ref_inc()\nreferences are stored directly in the given page. On release the folio\npage will be dereferenced too many times.\n\nThis was found while doing kTLS testing with sendfile() + ZC when the\nserved file was read from NFS on a kernel with NFS large folios support\n(commit 49b29a573da8 (\"nfs: add support for large folios\"))."}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL"},"scenarios":[{"lang":"en","value":"AV:N - The vulnerable resync/DUMP path is entered only when a TCP segment is retransmitted on a kTLS-offloaded connection (`priv_tx->expected_seq != seq`), and retransmission behavior is dictated entirely by the remote TLS peer's ACK/SACK behavior. A remote client of an mlx5e kTLS-offloaded TLS server reaches this code purely by sending network traffic, with no local access.\nAC:L - Once a client requests a sendfile()-served object, forcing retransmissions by dropping segments or withholding ACKs is trivially and repeatedly achievable, and the refcount over-decrement is deterministic (n=3 for the default 1500-byte MTU with 4K pages) rather than racy. No memory layout or timing condition outside the attacker's control must be won.\nPR:N - A public TLS/HTTPS endpoint accepts connections from anyone; no credentials, account, or local privileges are needed to open a connection, request a file, and manipulate the TCP ACK stream. The attacker acts purely as an ordinary remote TLS client.\nUI:N - The attacker drives the entire sequence — connect, request data, suppress ACKs — with no action required from any local user or administrator beyond the server already running its normal kTLS-offloaded workload.\nS:U - The corruption is of kernel page-cache refcounts and kernel memory, all within the host kernel's own security authority. No VM, IOMMU, or sandbox boundary is crossed.\nC:H - The folio refcount underflow frees an in-use page-cache folio that is still in the address_space and still referenced by TLS record frags and the retransmit queue; once the physical page is reallocated, its new contents (other tenants' file data, anonymous memory, or kernel objects) can be transmitted back over the attacker's own TLS connection, giving a broad memory-disclosure primitive.\nI:H - The same premature free gives a write primitive — page-cache writeback and continued DMA/TLS use write into memory that has been reallocated to other kernel objects, which is the classic UAF heap-spray path to control-flow hijack. The tail page's raw `_refcount` is also left permanently corrupted.\nA:H - Refcount underflow on a live folio trips `VM_BUG_ON_FOLIO`/`bad_page()` and frees memory that is still in use, producing oopses, page-allocator corruption, and kernel panic; the attacker can repeat this at will over many connections."}]}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c"],"versions":[{"version":"84d1bb2b139e0184b1754aa1b5776186b475fce8","lessThan":"a0ddb20a748b122ea86003485f7992fa5e84cc95","status":"affected","versionType":"git"},{"version":"84d1bb2b139e0184b1754aa1b5776186b475fce8","lessThan":"ffad2ac8c859c1c1a981fe9c4f7ff925db684a43","status":"affected","versionType":"git"},{"version":"84d1bb2b139e0184b1754aa1b5776186b475fce8","lessThan":"c7b97f9e794d8e2bbaa50e1d6c230196fd214b5e","status":"affected","versionType":"git"},{"version":"84d1bb2b139e0184b1754aa1b5776186b475fce8","lessThan":"69fbd07f17b0fdaf8970bc705f5bf115c297839d","status":"affected","versionType":"git"},{"version":"84d1bb2b139e0184b1754aa1b5776186b475fce8","lessThan":"93a14620b97c911489a5b008782f3d9b0c4aeff4","status":"affected","versionType":"git"},{"version":"84d1bb2b139e0184b1754aa1b5776186b475fce8","lessThan":"2723e8b2cbd486cb96e5a61b22473f7fd62e18df","status":"affected","versionType":"git"},{"version":"84d1bb2b139e0184b1754aa1b5776186b475fce8","lessThan":"dd6e972cc5890d91d6749bb48e3912721c4e4b25","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c"],"versions":[{"version":"5.4","status":"affected"},{"version":"0","lessThan":"5.4","status":"unaffected","versionType":"semver"},{"version":"5.4.287","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.231","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.174","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.119","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.63","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.11.10","lessThanOrEqual":"6.11.*","status":"unaffected","versionType":"semver"},{"version":"6.12","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"5.4.287"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"5.10.231"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"5.15.174"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"6.1.119"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"6.6.63"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"6.11.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"6.12"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/a0ddb20a748b122ea86003485f7992fa5e84cc95"},{"url":"https://git.kernel.org/stable/c/ffad2ac8c859c1c1a981fe9c4f7ff925db684a43"},{"url":"https://git.kernel.org/stable/c/c7b97f9e794d8e2bbaa50e1d6c230196fd214b5e"},{"url":"https://git.kernel.org/stable/c/69fbd07f17b0fdaf8970bc705f5bf115c297839d"},{"url":"https://git.kernel.org/stable/c/93a14620b97c911489a5b008782f3d9b0c4aeff4"},{"url":"https://git.kernel.org/stable/c/2723e8b2cbd486cb96e5a61b22473f7fd62e18df"},{"url":"https://git.kernel.org/stable/c/dd6e972cc5890d91d6749bb48e3912721c4e4b25"}],"title":"net/mlx5e: kTLS, Fix incorrect page refcounting","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"},{"url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2025-11-03T22:29:40.765Z"}}]}}