138 lines
7.7 KiB
JSON
138 lines
7.7 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-2026-23453",
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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": "2026-01-13T15:37:46.020Z",
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"datePublished": "2026-04-03T15:15:35.549Z",
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"dateUpdated": "2026-08-05T12:21:53.011Z"
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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": "2026-08-05T12:21:53.011Z"
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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: ti: icssg-prueth: Fix memory leak in XDP_DROP for non-zero-copy mode\n\nPage recycling was removed from the XDP_DROP path in emac_run_xdp() to\navoid conflicts with AF_XDP zero-copy mode, which uses xsk_buff_free()\ninstead.\n\nHowever, this causes a memory leak when running XDP programs that drop\npackets in non-zero-copy mode (standard page pool mode). The pages are\nnever returned to the page pool, leading to OOM conditions.\n\nFix this by handling cleanup in the caller, emac_rx_packet().\nWhen emac_run_xdp() returns ICSSG_XDP_CONSUMED for XDP_DROP, the\ncaller now recycles the page back to the page pool. The zero-copy\npath, emac_rx_packet_zc() already handles cleanup correctly with\nxsk_buff_free()."
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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:N/I:N/A:H",
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"baseScore": 7.5,
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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:N - The vulnerable path is native RX packet processing in the TI ICSSG Ethernet driver, reached by packets arriving on the network interface. In a reasonable XDP firewall/drop deployment, a remote sender can supply packets that the installed XDP program drops.\nAC:L - Once the interface is running with a non-zero-copy XDP program that returns XDP_DROP, triggering the leak only requires sending matching packets. There is no race, timing window, or fragile memory-layout dependency.\nPR:N - The attacker does not need to load or attach the XDP program in the highest-impact scenario; the target is already configured with an XDP drop program. The triggering packets can be unauthenticated network traffic.\nUI:N - No victim user action is required during exploitation. Packet receipt and NAPI RX processing occur automatically on the running interface.\nS:U - The impact remains within the same kernel and host security authority. This is not a VM escape, IOMMU bypass, or cross-scope boundary violation.\nC:N - The bug is an unrecycled page-pool buffer leak on XDP_DROP, not an out-of-bounds access, use-after-free, or information disclosure. No attacker-readable data is exposed by this flaw.\nI:N - The leak does not corrupt memory or provide a write primitive. It only loses references to RX pages that should have been returned to the page pool.\nA:H - Each dropped packet in the affected mode can permanently leak a page, and sustained unauthenticated traffic can drive the system into OOM. On embedded or network-gateway deployments this can cause loss of service, process termination, watchdog reset, or system unavailability."
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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/ti/icssg/icssg_common.c"
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],
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"versions": [
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{
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"version": "7a64bb388df3cf091afdd047c701039a13acd3b4",
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"lessThan": "d16d57dedcb69c1a1257e0638f8698ce1f0ccbe5",
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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": "7a64bb388df3cf091afdd047c701039a13acd3b4",
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"lessThan": "719d3e71691db7c4f1658ba5a6d1472928121594",
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"status": "affected",
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"versionType": "git"
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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/ti/icssg/icssg_common.c"
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],
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"versions": [
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{
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"version": "6.19",
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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": "6.19",
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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": "6.19.10",
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"lessThanOrEqual": "6.19.*",
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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": "7.0",
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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": "6.19",
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"versionEndExcluding": "6.19.10"
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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": "6.19",
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"versionEndExcluding": "7.0"
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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/d16d57dedcb69c1a1257e0638f8698ce1f0ccbe5"
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},
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{
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"url": "https://git.kernel.org/stable/c/719d3e71691db7c4f1658ba5a6d1472928121594"
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}
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],
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"title": "net: ti: icssg-prueth: Fix memory leak in XDP_DROP for non-zero-copy mode",
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"x_generator": {
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"engine": "bippy-1.2.0"
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