{"id":"CVE-2022-50447","state":"PUBLISHED","title":"Bluetooth: hci_conn: Fix crash on hci_create_cis_sync","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_conn: Fix crash on hci_create_cis_sync\n\nWhen attempting to connect multiple ISO sockets without using\nDEFER_SETUP may result in the following crash:\n\nBUG: KASAN: null-ptr-deref in hci_create_cis_sync+0x18b/0x2b0\nRead of size 2 at addr 0000000000000036 by task kworker/u3:1/50\n\nCPU: 0 PID: 50 Comm: kworker/u3:1 Not tainted\n6.0.0-rc7-02243-gb84a13ff4eda #4373\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009),\nBIOS 1.16.0-1.fc36 04/01/2014\nWorkqueue: hci0 hci_cmd_sync_work\nCall Trace:\n <TASK>\n dump_stack_lvl+0x19/0x27\n kasan_report+0xbc/0xf0\n ? hci_create_cis_sync+0x18b/0x2b0\n hci_create_cis_sync+0x18b/0x2b0\n ? get_link_mode+0xd0/0xd0\n ? __ww_mutex_lock_slowpath+0x10/0x10\n ? mutex_lock+0xe0/0xe0\n ? get_link_mode+0xd0/0xd0\n hci_cmd_sync_work+0x111/0x190\n process_one_work+0x427/0x650\n worker_thread+0x87/0x750\n ? process_one_work+0x650/0x650\n kthread+0x14e/0x180\n ? kthread_exit+0x50/0x50\n ret_from_fork+0x22/0x30\n </TASK>","publishedAt":"2025-10-01T11:45:21.804Z","updatedAt":"2026-05-11T19:19:40.253Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"26afbd826ee326e63a334c37fd45e82e50a615ec","status":"affected","lessThan":"a190cd9dc62d6ebeb679c1abe9dda4162dfefc84","versionType":"git"},{"version":"26afbd826ee326e63a334c37fd45e82e50a615ec","status":"affected","lessThan":"09a3b0c9c7c6b10587fbb610b718014703cff341","versionType":"git"},{"version":"26afbd826ee326e63a334c37fd45e82e50a615ec","status":"affected","lessThan":"50757a259ba78c4e938b5735e76ffec6cd0c942e","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/bluetooth/hci_conn.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.0","versionType":"semver"},{"version":"6.0.16","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1.2","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/bluetooth/hci_conn.c"]}],"references":["https://git.kernel.org/stable/c/a190cd9dc62d6ebeb679c1abe9dda4162dfefc84","https://git.kernel.org/stable/c/09a3b0c9c7c6b10587fbb610b718014703cff341","https://git.kernel.org/stable/c/50757a259ba78c4e938b5735e76ffec6cd0c942e"],"weaknesses":[],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/50xxx/CVE-2022-50447.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-50447","state":"PUBLISHED","datePublished":"2025-10-01T11:45:21.804Z","dateUpdated":"2026-05-11T19:19:40.253Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-09-17T14:53:07.011Z"},"containers":{"cna":{"title":"Bluetooth: hci_conn: Fix crash on hci_create_cis_sync","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_conn: Fix crash on hci_create_cis_sync\n\nWhen attempting to connect multiple ISO sockets without using\nDEFER_SETUP may result in the following crash:\n\nBUG: KASAN: null-ptr-deref in hci_create_cis_sync+0x18b/0x2b0\nRead of size 2 at addr 0000000000000036 by task kworker/u3:1/50\n\nCPU: 0 PID: 50 Comm: kworker/u3:1 Not tainted\n6.0.0-rc7-02243-gb84a13ff4eda #4373\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009),\nBIOS 1.16.0-1.fc36 04/01/2014\nWorkqueue: hci0 hci_cmd_sync_work\nCall Trace:\n <TASK>\n dump_stack_lvl+0x19/0x27\n kasan_report+0xbc/0xf0\n ? hci_create_cis_sync+0x18b/0x2b0\n hci_create_cis_sync+0x18b/0x2b0\n ? get_link_mode+0xd0/0xd0\n ? __ww_mutex_lock_slowpath+0x10/0x10\n ? mutex_lock+0xe0/0xe0\n ? get_link_mode+0xd0/0xd0\n hci_cmd_sync_work+0x111/0x190\n process_one_work+0x427/0x650\n worker_thread+0x87/0x750\n ? process_one_work+0x650/0x650\n kthread+0x14e/0x180\n ? kthread_exit+0x50/0x50\n ret_from_fork+0x22/0x30\n </TASK>"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"26afbd826ee326e63a334c37fd45e82e50a615ec","status":"affected","lessThan":"a190cd9dc62d6ebeb679c1abe9dda4162dfefc84","versionType":"git"},{"version":"26afbd826ee326e63a334c37fd45e82e50a615ec","status":"affected","lessThan":"09a3b0c9c7c6b10587fbb610b718014703cff341","versionType":"git"},{"version":"26afbd826ee326e63a334c37fd45e82e50a615ec","status":"affected","lessThan":"50757a259ba78c4e938b5735e76ffec6cd0c942e","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/bluetooth/hci_conn.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.0","versionType":"semver"},{"version":"6.0.16","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1.2","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/bluetooth/hci_conn.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/a190cd9dc62d6ebeb679c1abe9dda4162dfefc84"},{"url":"https://git.kernel.org/stable/c/09a3b0c9c7c6b10587fbb610b718014703cff341"},{"url":"https://git.kernel.org/stable/c/50757a259ba78c4e938b5735e76ffec6cd0c942e"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:19:40.253Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.0.16"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.1.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}