228 lines
11 KiB
JSON
228 lines
11 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-2026-98246",
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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": "2026-09-25T10:25:14.330Z",
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"datePublished": "2026-10-06T08:45:15.411Z",
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"dateUpdated": "2026-10-19T09:16:17.812Z"
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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": "2026-10-19T09:16:17.812Z"
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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\nBluetooth: hci_sync: Serialize local codec list cleanup\n\nhci_dev_close_sync() clears hdev->local_codecs after releasing hdev->lock.\nCodec list additions and both traversals in sco_sock_getsockopt() use that\nlock, but the close path does not. A close and BT_CODEC query can therefore\ninterleave as follows:\n\n hci_dev_close_sync() sco_sock_getsockopt()\n hci_dev_lock()\n fetch codec entry\n hci_codec_list_clear()\n kfree(entry)\n read entry->id\n\nThe reader then accesses an entry which the close path has freed. KASAN\n\n BUG: KASAN: slab-use-after-free in sco_sock_getsockopt+0xfa0/0xfe0\n Read of size 1 at addr ffff8881001c3450\n Call Trace:\n sco_sock_getsockopt+0xfa0/0xfe0\n do_sock_getsockopt+0x537/0x7b0\n __sys_getsockopt+0xf2/0x170\n Allocated by task 92:\n hci_codec_list_add.isra.0+0x2c/0x440\n hci_read_codec_capabilities+0x224/0x590\n hci_read_supported_codecs+0x2c2/0x640\n Freed by task 92:\n kfree+0x131/0x3c0\n hci_codec_list_clear+0xd8/0x160\n hci_dev_close_sync+0x92a/0xfa0\n\nTake hdev->lock around the clear operation at its existing point in the\nclose path. This makes the clear wait for active readers and prevents a new\ntraversal until the list is empty without changing teardown ordering."
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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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"net/bluetooth/hci_sync.c"
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],
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"versions": [
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{
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"version": "626535077ba9dc110787540d1fe24881094c15a1",
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"lessThan": "9f407d52c0d881430d689836d3e7d32aa36f98b5",
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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": "b938790e70540bf4f2e653dcd74b232494d06c8f",
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"lessThan": "560ed4373c06a58123ecdf9ad5ecaddc87a73382",
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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": "b938790e70540bf4f2e653dcd74b232494d06c8f",
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"lessThan": "1ee0c5429dc4a92879bda2554b1bfd4abc6c587c",
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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": "b938790e70540bf4f2e653dcd74b232494d06c8f",
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"lessThan": "4dc1ae5ff75b17e17ec4b74b11cc4b0099e71e00",
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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": "b938790e70540bf4f2e653dcd74b232494d06c8f",
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"lessThan": "1276c2fafd18499769a28f96f45c5a76d6fc990e",
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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": "b938790e70540bf4f2e653dcd74b232494d06c8f",
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"lessThan": "9a10987a2f160a44a638c9a35994ca6e3089696e",
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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": "eea5a8f0c3b7c884d2351e75fbdd0a3d7def5ae1",
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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": "6.1.57",
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"lessThan": "6.1.189",
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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": "6.5.7",
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"lessThan": "6.6",
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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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"net/bluetooth/hci_sync.c"
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],
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"versions": [
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{
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"version": "6.6",
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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": "6.6",
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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": "6.1.189",
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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": "6.6.158",
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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": "6.12.112",
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"lessThanOrEqual": "6.12.*",
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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": "6.18.54",
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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": "7.2.8",
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"lessThanOrEqual": "7.2.*",
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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": "7.3",
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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": "6.1.57",
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"versionEndExcluding": "6.1.189"
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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",
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"versionEndExcluding": "6.6.158"
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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",
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"versionEndExcluding": "6.12.112"
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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",
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"versionEndExcluding": "6.18.54"
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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",
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"versionEndExcluding": "7.2.8"
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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",
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"versionEndExcluding": "7.3"
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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": "6.5.7"
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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/9f407d52c0d881430d689836d3e7d32aa36f98b5"
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},
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{
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"url": "https://git.kernel.org/stable/c/560ed4373c06a58123ecdf9ad5ecaddc87a73382"
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},
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{
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"url": "https://git.kernel.org/stable/c/1ee0c5429dc4a92879bda2554b1bfd4abc6c587c"
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},
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{
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"url": "https://git.kernel.org/stable/c/4dc1ae5ff75b17e17ec4b74b11cc4b0099e71e00"
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},
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{
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"url": "https://git.kernel.org/stable/c/1276c2fafd18499769a28f96f45c5a76d6fc990e"
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},
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{
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"url": "https://git.kernel.org/stable/c/9a10987a2f160a44a638c9a35994ca6e3089696e"
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}
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],
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"title": "Bluetooth: hci_sync: Serialize local codec list cleanup",
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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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} |