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sched: act_ct: take care of padding in struct zones_ht_key

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: sched: act_ct: take care of padding in struct zones_ht_key Blamed commit increased lookup key size from 2 bytes to 16 bytes, because zones_ht_key got a struct net pointer. Make sure rhashtable_lookup() is not using the padding bytes which are not initialized. BUG: KMSAN: uninit-value in rht_ptr_rcu include/linux/rhashtable.h:376 [inline] BUG: KMSAN: uninit-value in __rhashtable_lookup include/linux/rhashtable.h:607 [inline] BUG: KMSAN: uninit-value in rhashtable_lookup include/linux/rhashtable.h:646 [inline] BUG: KMSAN: uninit-value in rhashtable_lookup_fast include/linux/rhashtable.h:672 [inline] BUG: KMSAN: uninit-value in tcf_ct_flow_table_get+0x611/0x2260 net/sched/act_ct.c:329 rht_ptr_rcu include/linux/rhashtable.h:376 [inline] __rhashtable_lookup include/linux/rhashtable.h:607 [inline] rhashtable_lookup include/linux/rhashtable.h:646 [inline] rhashtable_lookup_fast include/linux/rhashtable.h:672 [inline] tcf_ct_flow_table_get+0x611/0x2260 net/sched/act_ct.c:329 tcf_ct_init+0xa67/0x2890 net/sched/act_ct.c:1408 tcf_action_init_1+0x6cc/0xb30 net/sched/act_api.c:1425 tcf_action_init+0x458/0xf00 net/sched/act_api.c:1488 tcf_action_add net/sched/act_api.c:2061 [inline] tc_ctl_action+0x4be/0x19d0 net/sched/act_api.c:2118 rtnetlink_rcv_msg+0x12fc/0x1410 net/core/rtnetlink.c:6647 netlink_rcv_skb+0x375/0x650 net/netlink/af_netlink.c:2550 rtnetlink_rcv+0x34/0x40 net/core/rtnetlink.c:6665 netlink_unicast_kernel net

Announced Source revision 1
Original source ↗

CVE-2024-42272

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2024-42272

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "03f625505e27f709390a86c9b78d3707f4c23df8",
        "lessThan": "7c03ab555eb1ba26c77fd7c25bdf44a0ac23edee",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "aa1f81fe3a059bc984b230b5352ab89d06aa3c7b",
        "lessThan": "3ddefcb8f75e312535e2e7d5fef9932019ba60f2",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "2f82f75f843445daa81e8b2a76774b1348033ce6",
        "lessThan": "d06daf0ad645d9225a3ff6958dd82e1f3988fa64",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "9126fd82e9edc7b4796f756e4b258d34f17e5e4a",
        "lessThan": "d7cc186d0973afce0e1237c37f7512c01981fb79",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "88c67aeb14070bab61d3dd8be96c8b42ebcaf53a",
        "lessThan": "3a5b68869dbe14f1157c6a24ac71923db060eeab",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "88c67aeb14070bab61d3dd8be96c8b42ebcaf53a",
        "lessThan": "2191a54f63225b548fd8346be3611c3219a24738",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "b4382b854975ae96fbfcc83a1d79b5c063c1aaa8",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5.10.221",
        "lessThan": "5.10.224",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "5.15.162",
        "lessThan": "5.15.165",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "6.1.96",
        "lessThan": "6.1.104",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "6.6.36",
        "lessThan": "6.6.45",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "6.9.7",
        "lessThan": "6.10",
        "versionType": "semver"
      }
    ],
    "programFiles": [
      "net/sched/act_ct.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "6.10"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "6.10",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.224",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.165",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.104",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.45",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.10.4",
        "versionType": "semver",
        "lessThanOrEqual": "6.10.*"
      },
      {
        "status": "unaffected",
        "version": "6.11",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "net/sched/act_ct.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2024-42272

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#26676 · Revision 1
Added to Heist Feed
Publisher date
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