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team: better TEAM_OPTION_TYPE_STRING validation

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: team: better TEAM_OPTION_TYPE_STRING validation syzbot reported following splat [1] Make sure user-provided data contains one nul byte. [1] BUG: KMSAN: uninit-value in string_nocheck lib/vsprintf.c:633 [inline] BUG: KMSAN: uninit-value in string+0x3ec/0x5f0 lib/vsprintf.c:714 string_nocheck lib/vsprintf.c:633 [inline] string+0x3ec/0x5f0 lib/vsprintf.c:714 vsnprintf+0xa5d/0x1960 lib/vsprintf.c:2843 __request_module+0x252/0x9f0 kernel/module/kmod.c:149 team_mode_get drivers/net/team/team_core.c:480 [inline] team_change_mode drivers/net/team/team_core.c:607 [inline] team_mode_option_set+0x437/0x970 drivers/net/team/team_core.c:1401 team_option_set drivers/net/team/team_core.c:375 [inline] team_nl_options_set_doit+0x1339/0x1f90 drivers/net/team/team_core.c:2662 genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline] genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline] genl_rcv_msg+0x1214/0x12c0 net/netlink/genetlink.c:1210 netlink_rcv_skb+0x375/0x650 net/netlink/af_netlink.c:2543 genl_rcv+0x40/0x60 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1322 [inline] netlink_unicast+0xf52/0x1260 net/netlink/af_netlink.c:1348 netlink_sendmsg+0x10da/0x11e0 net/netlink/af_netlink.c:1892 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg+0x30f/0x380 net/socket.c:733 ____sys_sendmsg+0x877/0xb60 net/socket.c:2573 ___sys_sendmsg+0x28d/0x3c0 net/socket.c:2627 __sys_sendmsg net/so

Announced Source revision 1
Original source ↗

CVE-2025-21787

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-2025-21787

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": "3d249d4ca7d0ed6629a135ea1ea21c72286c0d80",
        "lessThan": "7c30483d0f6bdb2230e10e3e4be5167927eac7a0",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "3d249d4ca7d0ed6629a135ea1ea21c72286c0d80",
        "lessThan": "7f5af50f3aa0af8cbef9fb76fffeed69e8143f59",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "3d249d4ca7d0ed6629a135ea1ea21c72286c0d80",
        "lessThan": "f443687ad20c70320d1248f35f57bf46cac8df0a",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "3d249d4ca7d0ed6629a135ea1ea21c72286c0d80",
        "lessThan": "4512482e4805dd30bc77dec511f2a2edba5cb868",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "3d249d4ca7d0ed6629a135ea1ea21c72286c0d80",
        "lessThan": "d071a91fa614ecdf760c29f61f6a7bfb7df796d6",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "3d249d4ca7d0ed6629a135ea1ea21c72286c0d80",
        "lessThan": "4236bf4716589558cc0f3c3612642b2c2141b04e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "3d249d4ca7d0ed6629a135ea1ea21c72286c0d80",
        "lessThan": "8401cade1918281177974b32c925afdce750d292",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "3d249d4ca7d0ed6629a135ea1ea21c72286c0d80",
        "lessThan": "5bef3ac184b5626ea62385d6b82a1992b89d7940",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/net/team/team_core.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "3.3"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "3.3",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.4.291",
        "versionType": "semver",
        "lessThanOrEqual": "5.4.*"
      },
      {
        "status": "unaffected",
        "version": "5.10.235",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.179",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.129",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.79",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.16",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.13.4",
        "versionType": "semver",
        "lessThanOrEqual": "6.13.*"
      },
      {
        "status": "unaffected",
        "version": "6.14",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/net/team/team_core.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2025-21787

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#26944 · Revision 1
Added to Heist Feed
Publisher date
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