293 lines
16 KiB
JSON
293 lines
16 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2024-53138",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2024-11-19T17:17:24.996Z",
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"datePublished": "2024-12-04T14:20:43.395Z",
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"dateUpdated": "2026-10-15T21:41:46.240Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-08-05T11:44:01.599Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"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\"))."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 9.8,
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"baseSeverity": "CRITICAL"
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},
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"scenarios": [
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{
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"lang": "en",
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"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."
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}
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]
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c"
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],
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"versions": [
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{
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"version": "84d1bb2b139e0184b1754aa1b5776186b475fce8",
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"lessThan": "a0ddb20a748b122ea86003485f7992fa5e84cc95",
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"status": "affected",
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"versionType": "git"
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},
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"version": "84d1bb2b139e0184b1754aa1b5776186b475fce8",
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"lessThan": "ffad2ac8c859c1c1a981fe9c4f7ff925db684a43",
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"status": "affected",
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"lessThan": "c7b97f9e794d8e2bbaa50e1d6c230196fd214b5e",
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"status": "affected",
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"versionType": "git"
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},
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"version": "84d1bb2b139e0184b1754aa1b5776186b475fce8",
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"status": "affected",
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"status": "affected",
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{
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"version": "84d1bb2b139e0184b1754aa1b5776186b475fce8",
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"lessThan": "2723e8b2cbd486cb96e5a61b22473f7fd62e18df",
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"status": "affected",
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"status": "affected",
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}
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c"
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],
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"versions": [
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{
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"version": "5.4",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "5.4",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.4.287",
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"lessThanOrEqual": "5.4.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.231",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.174",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.119",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.63",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.11.10",
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"lessThanOrEqual": "6.11.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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"title": "net/mlx5e: kTLS, Fix incorrect page refcounting",
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"url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"
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"type": "ssvc",
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"id": "CVE-2024-53138",
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"role": "CISA Coordinator",
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"options": [
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