{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-49951","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-10-21T12:17:06.046Z","datePublished":"2024-10-21T18:02:07.055Z","dateUpdated":"2026-08-05T11:40:38.621Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-05T11:40:38.621Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: MGMT: Fix possible crash on mgmt_index_removed\n\nIf mgmt_index_removed is called while there are commands queued on\ncmd_sync it could lead to crashes like the bellow trace:\n\n0x0000053D: __list_del_entry_valid_or_report+0x98/0xdc\n0x0000053D: mgmt_pending_remove+0x18/0x58 [bluetooth]\n0x0000053E: mgmt_remove_adv_monitor_complete+0x80/0x108 [bluetooth]\n0x0000053E: hci_cmd_sync_work+0xbc/0x164 [bluetooth]\n\nSo while handling mgmt_index_removed this attempts to dequeue\ncommands passed as user_data to cmd_sync."}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH"},"scenarios":[{"lang":"en","value":"AV:L - The vulnerability is triggered through the local Bluetooth management socket (AF_BLUETOOTH/BTPROTO_HCI, HCI_CHANNEL_CONTROL) by submitting mgmt commands and then powering off or removing the adapter index; no over-the-air Bluetooth data reaches this path.\nAC:L - The attacker controls both sides of the sequence — queue any cmd_sync-backed mgmt command (e.g. REMOVE_ADV_MONITOR, ADD_ADV_PATTERNS_MONITOR) and then issue SET_POWERED(off), which executes __mgmt_power_off from inside hci_cmd_sync_work and frees the pending cmd while the worker still holds it in cmd_sync_work_list. The stale entry is then processed deterministically in the same worker loop.\nPR:L - Reaching the mgmt command handlers requires a trusted control socket (CAP_NET_ADMIN), which on real deployments is held by non-root Bluetooth service accounts (bluetoothd, Android's Bluetooth stack), so a compromised unprivileged service reaches it; the power-off half is additionally reachable by ordinary desktop/session users via rfkill and D-Bus. Consistent with prior kernel.org scoring of the same mgmt_pending UAF class (CVE-2025-38118, CVE-2026-31511).\nUI:N - The full sequence is issued by the attacker's own process through the mgmt socket; no action by another user or victim is needed.\nS:U - The use-after-free corrupts kernel heap state within the same kernel security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The freed mgmt_pending_cmd is re-read after being reclaimed, and mgmt_cmd_complete() sends cmd->param/cmd->param_len from the stale allocation back to the attacker's socket, disclosing arbitrary reallocated kernel heap contents.\nI:H - mgmt_pending_remove() performs list_del on the freed and attacker-reclaimable object, yielding a controlled kernel write primitive, and sock_put(cmd->sk) decrements a refcount through a stale pointer — both leveragable for privilege escalation via heap grooming.\nA:H - The reported failure is a kernel crash in __list_del_entry_valid_or_report from mgmt_pending_remove; any unexploited attempt reliably oopses or panics the kernel."}]}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/bluetooth/mgmt.c"],"versions":[{"version":"7cf5c2978f23fdbb2dd7b4e8b07e362ae2d8211c","lessThan":"19b40ca62607cef78369549d1af091f2fd558931","status":"affected","versionType":"git"},{"version":"7cf5c2978f23fdbb2dd7b4e8b07e362ae2d8211c","lessThan":"4883296505aa7e4863c6869b689afb6005633b23","status":"affected","versionType":"git"},{"version":"7cf5c2978f23fdbb2dd7b4e8b07e362ae2d8211c","lessThan":"0cc47233af35fb5f10b5e6a027cb4ccd480caf9a","status":"affected","versionType":"git"},{"version":"7cf5c2978f23fdbb2dd7b4e8b07e362ae2d8211c","lessThan":"8c3f7943a29145d8a2d8e24893762f7673323eae","status":"affected","versionType":"git"},{"version":"7cf5c2978f23fdbb2dd7b4e8b07e362ae2d8211c","lessThan":"f53e1c9c726d83092167f2226f32bd3b73f26c21","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/bluetooth/mgmt.c"],"versions":[{"version":"6.0","status":"affected"},{"version":"0","lessThan":"6.0","status":"unaffected","versionType":"semver"},{"version":"6.1.120","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.55","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.10.14","lessThanOrEqual":"6.10.*","status":"unaffected","versionType":"semver"},{"version":"6.11.3","lessThanOrEqual":"6.11.*","status":"unaffected","versionType":"semver"},{"version":"6.12","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.1.120"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.6.55"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.10.14"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.11.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.12"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/19b40ca62607cef78369549d1af091f2fd558931"},{"url":"https://git.kernel.org/stable/c/4883296505aa7e4863c6869b689afb6005633b23"},{"url":"https://git.kernel.org/stable/c/0cc47233af35fb5f10b5e6a027cb4ccd480caf9a"},{"url":"https://git.kernel.org/stable/c/8c3f7943a29145d8a2d8e24893762f7673323eae"},{"url":"https://git.kernel.org/stable/c/f53e1c9c726d83092167f2226f32bd3b73f26c21"}],"title":"Bluetooth: MGMT: Fix possible crash on mgmt_index_removed","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2024-49951","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-10-22T13:36:23.779720Z"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-10-22T13:38:49.118Z"}},{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2025-11-03T20:42:19.292Z"}}]}}