239 lines
12 KiB
JSON
239 lines
12 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-2024-45019",
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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": "2024-08-21T05:34:56.683Z",
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"datePublished": "2024-09-11T15:13:53.933Z",
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"dateUpdated": "2026-08-05T11:37:43.782Z"
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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": "2026-08-05T11:37:43.782Z"
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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: Take state lock during tx timeout reporter\n\nmlx5e_safe_reopen_channels() requires the state lock taken. The\nreferenced changed in the Fixes tag removed the lock to fix another\nissue. This patch adds it back but at a later point (when calling\nmlx5e_safe_reopen_channels()) to avoid the deadlock referenced in the\nFixes tag."
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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:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 7.8,
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"baseSeverity": "HIGH"
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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:L - The defect is a missing mutex in the mlx5e driver's local error-recovery path; the racing accesses come from local interfaces (`ndo_get_stats64` via /proc/net/dev, ip -s link, ethtool/netlink stats) rather than from parsing remote data. No remote peer input reaches the vulnerable function.\nAC:L - No lock is taken at all, and the unprotected window spans a full channel teardown/rebuild (firmware commands plus synchronize_net()), so the attacker-controlled side of the race — continuously requeuing `mlx5e_update_stats_work()` by looping on unprivileged stats reads — hits it reliably rather than depending on a narrow timing window.\nPR:L - Driving the racing `state_lock` holder requires only an unprivileged local account: `mlx5e_get_stats()` queues `mlx5e_update_stats_work()` and is reachable from `cat /proc/net/dev`, `ip -s link`, or `/sys/class/net/*/statistics/*` with no capability check.\nUI:N - The recovery work runs from a kernel workqueue and the stats path is driven entirely by the attacker's own reads; no victim action is required.\nS:U - The corrupted objects (`priv->channels`, `mlx5e_channel`, `mlx5e_selq`) all belong to the kernel's own security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - `mlx5e_close_channels()` kvfree()s each channel and kfree()s the `chs->c` array while the concurrent stats worker still dereferences them, giving a use-after-free read of slab memory that the attacker can groom (the same path immediately reallocates channels), which can be leveraged to disclose kernel memory.\nI:H - The same use-after-free on freed and reallocated channel/SQ/RQ objects yields attacker-influenceable pointer dereferences, and the unsynchronized `mlx5e_selq_prepare_params()`/`mlx5e_selq_apply()` sequence can publish inconsistent queue-selection parameters — both are exploitable for memory corruption.\nA:H - The race reliably produces a use-after-free/inconsistent `priv->channels` state leading to an oops or NIC-recovery failure (plus lockdep/WARN splats), taking down the network device and potentially the machine."
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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/reporter_tx.c"
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],
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"versions": [
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{
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"version": "514232495aa523641febaa58b687fe6df1cd0b73",
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"lessThan": "03d3734bd692affe4d0e9c9d638f491aaf37411b",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "8ce3d969348a7c7fa3469588eb1319f9f3cc0eaa",
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"lessThan": "b3b9a87adee97854bcd71057901d46943076267e",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "eab0da38912ebdad922ed0388209f7eb0a5163cd",
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"lessThan": "8e57e66ecbdd2fddc9fbf3e984b1c523b70e9809",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "eab0da38912ebdad922ed0388209f7eb0a5163cd",
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"lessThan": "e6b5afd30b99b43682a7764e1a74a42fe4d5f4b3",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "6.1.69",
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"lessThan": "6.1.107",
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"status": "affected",
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"versionType": "semver"
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},
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{
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"version": "6.6.8",
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"lessThan": "6.6.48",
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"status": "affected",
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"versionType": "semver"
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}
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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/reporter_tx.c"
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],
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"versions": [
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{
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"version": "6.7",
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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": "6.7",
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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": "6.1.107",
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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": "6.6.48",
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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": "6.10.7",
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"lessThanOrEqual": "6.10.*",
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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": "6.11",
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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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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.1.69",
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"versionEndExcluding": "6.1.107"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.6.8",
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"versionEndExcluding": "6.6.48"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.7",
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"versionEndExcluding": "6.10.7"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.7",
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"versionEndExcluding": "6.11"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/03d3734bd692affe4d0e9c9d638f491aaf37411b"
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},
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{
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"url": "https://git.kernel.org/stable/c/b3b9a87adee97854bcd71057901d46943076267e"
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},
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{
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"url": "https://git.kernel.org/stable/c/8e57e66ecbdd2fddc9fbf3e984b1c523b70e9809"
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},
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{
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"url": "https://git.kernel.org/stable/c/e6b5afd30b99b43682a7764e1a74a42fe4d5f4b3"
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}
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],
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"title": "net/mlx5e: Take state lock during tx timeout reporter",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2024-09-29T15:48:31.371644Z",
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"id": "CVE-2024-45019",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2024-09-29T15:48:46.673Z"
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}
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},
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{
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"title": "CVE Program Container",
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"references": [
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{
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"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
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}
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],
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"providerMetadata": {
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"orgId": "af854a3a-2127-422b-91ae-364da2661108",
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"shortName": "CVE",
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"dateUpdated": "2025-11-03T22:15:26.924Z"
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}
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}
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]
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}
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} |