206 lines
10 KiB
JSON
206 lines
10 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-2026-98798",
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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": "2026-09-25T10:25:14.370Z",
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"datePublished": "2026-10-18T15:48:43.367Z",
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"dateUpdated": "2026-10-30T12:39:53.751Z"
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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": "2026-10-30T12:39:53.751Z"
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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: bcmgenet: fix NULL dereference in set_coalesce before first open\n\nThe Rx ring priv and index are only set in bcmgenet_init_rx_ring(),\nwhich runs at open. Setting the Rx coalescing parameters on an interface\nthat was never opened, e.g. \"ethtool -C eth0 rx-usecs 50\", dereferences\na NULL ring->priv. The oops happens with RTNL held, so networking\nstays stuck until a reboot:\n\n Unable to handle kernel paging request at virtual address 0000000000002788\n pc : bcmgenet_set_rx_coalesce.isra.0+0x10/0x88\n lr : bcmgenet_set_coalesce+0xe8/0x180\n Call trace:\n bcmgenet_set_rx_coalesce.isra.0+0x10/0x88 (P)\n __ethnl_set_coalesce.isra.0+0x490/0x570\n ethnl_set_coalesce+0x48/0xc0\n ethnl_default_set_doit+0xf4/0x230\n genl_family_rcv_msg_doit+0xe8/0x160\n genl_rcv_msg+0x220/0x2a0\n netlink_rcv_skb+0x68/0x140\n genl_rcv+0x40/0x60\n netlink_unicast+0x338/0x3c0\n netlink_sendmsg+0x19c/0x3f8\n __sock_sendmsg+0x64/0xc0\n __sys_sendto+0x124/0x198\n __arm64_sys_sendto+0x30/0x48\n\nSet priv and index at probe. Writing the registers while the interface\nis down is harmless because open resets the MAC and\nbcmgenet_init_rx_coalesce() reapplies the stored values.\n\nIt was observed on a Raspberry Pi CM4, but should apply to all other\ngenet devices."
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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/broadcom/genet/bcmgenet.c"
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],
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"versions": [
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{
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"version": "9f4ca05827a27ec73bf63a42732f1978b8a779af",
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"lessThan": "51e76b4113e5147329ed8dd232375bf11fd34044",
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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": "9f4ca05827a27ec73bf63a42732f1978b8a779af",
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"lessThan": "213ff02ab26a4543ef02b4db393bbdd5fa5679a7",
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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": "9f4ca05827a27ec73bf63a42732f1978b8a779af",
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"lessThan": "0d867b91598b6ed2f75998c34f4e2869631da31e",
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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": "9f4ca05827a27ec73bf63a42732f1978b8a779af",
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"lessThan": "2294b62eaec6fd3c76a261d287f66641eeafd5f0",
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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": "9f4ca05827a27ec73bf63a42732f1978b8a779af",
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"lessThan": "d870102b5425390cab42eebbf3d19ec6a43c6734",
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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": "9f4ca05827a27ec73bf63a42732f1978b8a779af",
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"lessThan": "19419faf58dfe5bcc8a9e60e622976c5f8e3ddc1",
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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/broadcom/genet/bcmgenet.c"
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],
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"versions": [
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{
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"version": "4.17",
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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": "4.17",
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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": "6.1.191",
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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": "6.6.160",
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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": "6.12.113",
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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": "6.18.56",
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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": "7.2.10",
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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": "4.17",
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"versionEndExcluding": "6.1.191"
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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": "4.17",
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"versionEndExcluding": "6.6.160"
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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": "4.17",
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"versionEndExcluding": "6.12.113"
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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": "4.17",
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"versionEndExcluding": "6.18.56"
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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": "4.17",
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"versionEndExcluding": "7.2.10"
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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": "4.17",
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"versionEndExcluding": "7.3"
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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/51e76b4113e5147329ed8dd232375bf11fd34044"
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},
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{
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"url": "https://git.kernel.org/stable/c/213ff02ab26a4543ef02b4db393bbdd5fa5679a7"
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},
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{
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"url": "https://git.kernel.org/stable/c/0d867b91598b6ed2f75998c34f4e2869631da31e"
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},
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{
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"url": "https://git.kernel.org/stable/c/2294b62eaec6fd3c76a261d287f66641eeafd5f0"
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},
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{
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"url": "https://git.kernel.org/stable/c/d870102b5425390cab42eebbf3d19ec6a43c6734"
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},
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{
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"url": "https://git.kernel.org/stable/c/19419faf58dfe5bcc8a9e60e622976c5f8e3ddc1"
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}
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],
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"title": "net: bcmgenet: fix NULL dereference in set_coalesce before first open",
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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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} |