152 lines
8.0 KiB
JSON
152 lines
8.0 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-2026-68378",
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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": "2026-07-30T09:28:09.387Z",
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"datePublished": "2026-08-10T12:03:56.590Z",
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"dateUpdated": "2026-08-17T05:04:24.219Z"
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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": "2026-08-17T05:04:24.219Z"
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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\ndpll: fix NULL pointer dereference in dpll_msg_add_pin_ref_sync()\n\nWhen a dpll_pin is shared across multiple dpll_device instances and\nthose devices are being unregistered (e.g. during driver module removal),\na NULL pointer dereference can occur in dpll_msg_add_pin_ref_sync().\n\nThis happens under the following conditions:\n - A pin is registered with two or more dpll devices (dpll_A, dpll_B)\n - The pin has ref_sync pairs with other pins\n - During unregistration of dpll_A's pins, a ref_sync partner pin is\n unregistered first, removing it from dpll_A->pin_refs\n - But since the partner pin is still registered with dpll_B, its\n dpll_refs is not empty, so dpll_pin_ref_sync_pair_del() does NOT\n run and the partner stays in the pin's ref_sync_pins xarray\n - When the pin itself is then unregistered from dpll_A, the delete\n notification calls dpll_msg_add_pin_ref_sync() which finds the\n partner in ref_sync_pins, passes dpll_pin_available() (partner is\n still registered with dpll_B), but dpll_pin_on_dpll_priv(dpll_A,\n partner) returns NULL because partner was already removed from\n dpll_A->pin_refs\n - The NULL priv pointer is passed to the driver's ref_sync_get\n callback, which dereferences it\n\n BUG: kernel NULL pointer dereference, address: 0000000000000034\n Oops: Oops: 0000 [#1] SMP NOPTI\n RIP: 0010:zl3073x_dpll_input_pin_ref_sync_get+0x73/0x80 [zl3073x]\n Call Trace:\n dpll_msg_add_pin_ref_sync+0xb8/0x200\n dpll_cmd_pin_get_one+0x3b6/0x4b0\n dpll_pin_event_send+0x72/0x140\n __dpll_pin_unregister+0x5a/0x2b0\n dpll_pin_unregister+0x49/0x70\n\nFix this by skipping ref_sync pins whose priv pointer cannot be resolved\nfor the current dpll device."
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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/dpll/dpll_netlink.c"
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],
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"versions": [
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{
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"version": "40466ea1827c46c6435fab9b21b63b80733e2d07",
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"lessThan": "66fbe0499ef517ab161b96c49886a891851f6481",
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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": "58256a26bfb37a94738dd65618b1f31f460f8d91",
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"lessThan": "51c2fcc4cd2e4c52bd1970558f6e5356fdc51154",
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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": "58256a26bfb37a94738dd65618b1f31f460f8d91",
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"lessThan": "4b3e6b9fdaeb40c6a2f7c41db3888b6ee628bdd2",
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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": "58256a26bfb37a94738dd65618b1f31f460f8d91",
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"lessThan": "d2e914a4a0d0f753dbae830264850d044026167c",
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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/dpll/dpll_netlink.c"
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],
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"versions": [
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{
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"version": "6.17",
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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": "6.17",
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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": "6.18.42",
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"lessThanOrEqual": "6.18.*",
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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": "7.1.6",
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"lessThanOrEqual": "7.1.*",
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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": "7.2",
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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": "6.17",
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"versionEndExcluding": "6.18.42"
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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": "6.17",
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"versionEndExcluding": "7.1.6"
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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": "6.17",
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"versionEndExcluding": "7.2"
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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/66fbe0499ef517ab161b96c49886a891851f6481"
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},
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{
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"url": "https://git.kernel.org/stable/c/51c2fcc4cd2e4c52bd1970558f6e5356fdc51154"
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},
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{
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"url": "https://git.kernel.org/stable/c/4b3e6b9fdaeb40c6a2f7c41db3888b6ee628bdd2"
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},
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{
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"url": "https://git.kernel.org/stable/c/d2e914a4a0d0f753dbae830264850d044026167c"
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}
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],
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"title": "dpll: fix NULL pointer dereference in dpll_msg_add_pin_ref_sync()",
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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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}
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} |