{"id":"CVE-2026-23462","revision":null,"records":[{"revision":"3bd2a04d979449e9afe769a76b6134df","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-23462","aliases":[],"title":"Bluetooth: HIDP: Fix possible UAF","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: HIDP: Fix possible UAF\n\nThis fixes the following trace caused by not dropping l2cap_conn\nreference when user->remove callback is called:\n\n[ 97.809249] l2cap_conn_free: freeing conn ffff88810a171c00\n[ 97.809907] CPU: 1 UID: 0 PID: 1419 Comm: repro_standalon Not tainted 7.0.0-rc1-dirty #14 PREEMPT(lazy)\n[ 97.809935] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.17.0-debian-1.17.0-1 04/01/2014\n[ 97.809947] Call Trace:\n[ 97.809954] \n[ 97.809961] dump_stack_lvl (lib/dump_stack.c:122)\n[ 97.809990] l2cap_conn_free (net/bluetooth/l2cap_core.c:1808)\n[ 97.810017] l2cap_conn_del (./include/linux/kref.h:66 net/bluetooth/l2cap_core.c:1821 net/bluetooth/l2cap_core.c:1798)\n[ 97.810055] l2cap_disconn_cfm (net/bluetooth/l2cap_core.c:7347 (discriminator 1) net/bluetooth/l2cap_core.c:7340 (discriminator 1))\n[ 97.810086] ? __pfx_l2cap_disconn_cfm (net/bluetooth/l2cap_core.c:7341)\n[ 97.810117] hci_conn_hash_flush (./include/net/bluetooth/hci_core.h:2152 (discriminator 2) net/bluetooth/hci_conn.c:2644 (discriminator 2))\n[ 97.810148] hci_dev_close_sync (net/bluetooth/hci_sync.c:5360)\n[ 97.810180] ? __pfx_hci_dev_close_sync (net/bluetooth/hci_sync.c:5285)\n[ 97.810212] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\n[ 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:268 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:3391 (discriminator 5) kernel/locking/rwsem.c:1385 (discriminator 5) kernel/locking/rwsem.c:1643 (discriminator 5))\n[ 97.810267] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\n[ 97.810290] ? rcu_is_watching (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/context_tracking.h:128 kernel/rcu/tree.c:752)\n[ 97.810320] hci_unregister_dev (net/bluetooth/hci_core.c:504 net/bluetooth/hci_core.c:2716)\n[ 97.810346] vhci_release (drivers/bluetooth/hci_vhci.c:691)\n[ 97.810375] ? __pfx_vhci_release (drivers/bluetooth/hci_vhci.c:678)\n[ 97.810404] __fput (fs/file_table.c:470)\n[ 97.810430] task_work_run (kernel/task_work.c:235)\n[ 97.810451] ? __pfx_task_work_run (kernel/task_work.c:201)\n[ 97.810472] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\n[ 97.810495] ? do_raw_spin_unlock (./include/asm-generic/qspinlock.h:128 (discriminator 5) kernel/locking/spinlock_debug.c:142 (discriminator 5))\n[ 97.810527] do_exit (kernel/exit.c:972)\n[ 97.810547] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\n[ 97.810574] ? __pfx_do_exit (kernel/exit.c:897)\n[ 97.810594] ? lock_acquire (kernel/locking/lockdep.c:470 (discriminator 6) kernel/locking/lockdep.c:5870 (discriminator 6) kernel/locking/lockdep.c:5825 (discriminator 6))\n[ 97.810616] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\n[ 97.810639] ? do_raw_spin_lock (kernel/locking/spinlock_debug.c:95 (discriminator 4) kernel/locking/spinlock_debug.c:118 (discriminator 4))\n[ 97.810664] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\n[ 97.810688] ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))\n[ 97.810721] do_group_exit (kernel/exit.c:1093)\n[ 97.810745] get_signal (kernel/signal.c:3007 (discriminator 1))\n[ 97.810772] ? security_file_permission (./arch/x86/include/asm/jump_label.h:37 security/security.c:2366)\n[ 97.810803] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\n[ 97.810826] ? vfs_read (fs/read_write.c:555)\n[ 97.810854] ? __pfx_get_signal (kernel/signal.c:2800)\n[ 97.810880] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\n[ 97.810905] ? __pfx_vfs_read (fs/read_write.c:555)\n[ 97.810932] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\n[ 97.810960] arch_do_signal_or_restart (arch/\n---truncated---","state":0,"publishedAt":"2026-04-03T15:15:41.718+00:00","modifiedAt":"2026-10-19T18:35:45.529+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"unaffected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"net/bluetooth/hidp/core.c\"\n ],\n \"versions\": [\n {\n \"version\": \"b4f34d8d9d26b2428fa7cf7c8f97690a297978e6\",\n \"lessThan\": \"d955ccbf91ab74d76fe9e4eab2846a7d8a173075\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"b4f34d8d9d26b2428fa7cf7c8f97690a297978e6\",\n \"lessThan\": \"18b1263ece6431bd78fa6b61faaef5281203741c\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"b4f34d8d9d26b2428fa7cf7c8f97690a297978e6\",\n \"lessThan\": \"21a47a119f33df9bb157326846390d7e8e1b45ba\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"b4f34d8d9d26b2428fa7cf7c8f97690a297978e6\",\n \"lessThan\": \"45ebe5b900200ac3e01f3470506a44a447825721\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"b4f34d8d9d26b2428fa7cf7c8f97690a297978e6\",\n \"lessThan\": \"7c805b7d1e580eececcc92470292e3dbc42bc3f5\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"b4f34d8d9d26b2428fa7cf7c8f97690a297978e6\",\n \"lessThan\": \"f8b6ed2f06d3baa44f347a0fa2af52433f386463\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"b4f34d8d9d26b2428fa7cf7c8f97690a297978e6\",\n \"lessThan\": \"4d37fa7582aa960ba23e10a7a2596a29f37ad281\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"b4f34d8d9d26b2428fa7cf7c8f97690a297978e6\",\n \"lessThan\": \"dbf666e4fc9bdd975a61bf682b3f75cb0145eedd\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n }\n ]\n }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"affected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"net/bluetooth/hidp/core.c\"\n ],\n \"versions\": [\n {\n \"version\": \"3.10\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"3.10\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.253\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.203\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.167\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.130\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.78\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.18.20\",\n \"lessThanOrEqual\": \"6.18.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.19.10\",\n \"lessThanOrEqual\": \"6.19.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.0\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":8.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/d955ccbf91ab74d76fe9e4eab2846a7d8a173075","https://git.kernel.org/stable/c/18b1263ece6431bd78fa6b61faaef5281203741c","https://git.kernel.org/stable/c/21a47a119f33df9bb157326846390d7e8e1b45ba","https://git.kernel.org/stable/c/45ebe5b900200ac3e01f3470506a44a447825721","https://git.kernel.org/stable/c/7c805b7d1e580eececcc92470292e3dbc42bc3f5","https://git.kernel.org/stable/c/f8b6ed2f06d3baa44f347a0fa2af52433f386463","https://git.kernel.org/stable/c/4d37fa7582aa960ba23e10a7a2596a29f37ad281","https://git.kernel.org/stable/c/dbf666e4fc9bdd975a61bf682b3f75cb0145eedd"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-23462","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-23462","identifiers":["CVE-2026-23462"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all 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Not a global EPSS backfill.","generation":"2026-11-08T21:02:31.8931850+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-08T21:02:31.893185+00:00","lastSuccessAt":"2026-11-08T21:02:32.3894193+00:00","error":null,"lastVerifiedAt":"2026-11-08T21:02:32.38942+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. 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