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Bluetooth: HIDP: Fix possible UAF

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: HIDP: Fix possible UAF This fixes the following trace caused by not dropping l2cap_conn reference when user->remove callback is called: [ 97.809249] l2cap_conn_free: freeing conn ffff88810a171c00 [ 97.809907] CPU: 1 UID: 0 PID: 1419 Comm: repro_standalon Not tainted 7.0.0-rc1-dirty #14 PREEMPT(lazy) [ 97.809935] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.17.0-debian-1.17.0-1 04/01/2014 [ 97.809947] Call Trace: [ 97.809954] [ 97.809961] dump_stack_lvl (lib/dump_stack.c:122) [ 97.809990] l2cap_conn_free (net/bluetooth/l2cap_core.c:1808) [ 97.810017] l2cap_conn_del (./include/linux/kref.h:66 net/bluetooth/l2cap_core.c:1821 net/bluetooth/l2cap_core.c:1798) [ 97.810055] l2cap_disconn_cfm (net/bluetooth/l2cap_core.c:7347 (discriminator 1) net/bluetooth/l2cap_core.c:7340 (discriminator 1)) [ 97.810086] ? __pfx_l2cap_disconn_cfm (net/bluetooth/l2cap_core.c:7341) [ 97.810117] hci_conn_hash_flush (./include/net/bluetooth/hci_core.h:2152 (discriminator 2) net/bluetooth/hci_conn.c:2644 (discriminator 2)) [ 97.810148] hci_dev_close_sync (net/bluetooth/hci_sync.c:5360) [ 97.810180] ? __pfx_hci_dev_close_sync (net/bluetooth/hci_sync.c:5285) [ 97.810212] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221) [ 97.810242] ? up_write (./arch/x86/include/asm/atomic64_64.h:87 (discriminator 5) ./include/linux/atomic/atomic-arch-fallback.h:2852 (discriminator 5) ./include/linux/atomic/atomic-long.h

Announced Source revision 1
Original source ↗

CVE-2026-23462

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-2026-23462

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": "b4f34d8d9d26b2428fa7cf7c8f97690a297978e6",
        "lessThan": "d955ccbf91ab74d76fe9e4eab2846a7d8a173075",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "b4f34d8d9d26b2428fa7cf7c8f97690a297978e6",
        "lessThan": "18b1263ece6431bd78fa6b61faaef5281203741c",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "b4f34d8d9d26b2428fa7cf7c8f97690a297978e6",
        "lessThan": "21a47a119f33df9bb157326846390d7e8e1b45ba",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "b4f34d8d9d26b2428fa7cf7c8f97690a297978e6",
        "lessThan": "45ebe5b900200ac3e01f3470506a44a447825721",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "b4f34d8d9d26b2428fa7cf7c8f97690a297978e6",
        "lessThan": "7c805b7d1e580eececcc92470292e3dbc42bc3f5",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "b4f34d8d9d26b2428fa7cf7c8f97690a297978e6",
        "lessThan": "f8b6ed2f06d3baa44f347a0fa2af52433f386463",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "b4f34d8d9d26b2428fa7cf7c8f97690a297978e6",
        "lessThan": "4d37fa7582aa960ba23e10a7a2596a29f37ad281",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "b4f34d8d9d26b2428fa7cf7c8f97690a297978e6",
        "lessThan": "dbf666e4fc9bdd975a61bf682b3f75cb0145eedd",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "net/bluetooth/hidp/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": "3.10"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "3.10",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.253",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.203",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.167",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.130",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.78",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.20",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "6.19.10",
        "versionType": "semver",
        "lessThanOrEqual": "6.19.*"
      },
      {
        "status": "unaffected",
        "version": "7.0",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "net/bluetooth/hidp/core.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-23462

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#39861 · Revision 1
Added to Heist Feed
Publisher date
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