[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-DEBIAN-CVE-2022-49910":6},{"stargazers_count":4,"fetched_at":5},8,"2026-09-19T04:32:17.889Z",{"id":7,"descriptions":8,"cisa":9,"weaknesses":10,"exploits":11,"aliases":12,"duplicate_of":9,"upstream":13,"downstream":16,"duplicates":17,"related":18,"reserved_at":9,"published_at":19,"modified_at":20,"state":9,"summary":21,"references_raw":23,"kevs":30,"epss":9,"epss_history":31,"metrics":32,"affected":39},"DEBIAN-CVE-2022-49910","In the Linux kernel, the following vulnerability has been resolved:  Bluetooth: L2CAP: Fix use-after-free caused by l2cap_reassemble_sdu  Fix the race condition between the following two flows that run in parallel:  1. l2cap_reassemble_sdu -> chan->ops->recv (l2cap_sock_recv_cb) ->    __sock_queue_rcv_skb.  2. bt_sock_recvmsg -> skb_recv_datagram, skb_free_datagram.  An SKB can be queued by the first flow and immediately dequeued and freed by the second flow, therefore the callers of l2cap_reassemble_sdu can't use the SKB after that function returns. However, some places continue accessing struct l2cap_ctrl that resides in the SKB's CB for a short time after l2cap_reassemble_sdu returns, leading to a use-after-free condition (the stack trace is below, line numbers for kernel 5.19.8).  Fix it by keeping a local copy of struct l2cap_ctrl.  BUG: KASAN: use-after-free in l2cap_rx_state_recv (net/bluetooth/l2cap_core.c:6906) bluetooth Read of size 1 at addr ffff88812025f2f0 by task kworker/u17:3/43169  Workqueue: hci0 hci_rx_work [bluetooth] Call Trace:  \u003CTASK>  dump_stack_lvl (lib/dump_stack.c:107 (discriminator 4))  print_report.cold (mm/kasan/report.c:314 mm/kasan/report.c:429)  ? l2cap_rx_state_recv (net/bluetooth/l2cap_core.c:6906) bluetooth  kasan_report (mm/kasan/report.c:162 mm/kasan/report.c:493)  ? l2cap_rx_state_recv (net/bluetooth/l2cap_core.c:6906) bluetooth  l2cap_rx_state_recv (net/bluetooth/l2cap_core.c:6906) bluetooth  l2cap_rx (net/bluetooth/l2cap_core.c:7236 net/bluetooth/l2cap_core.c:7271) bluetooth  ret_from_fork (arch/x86/entry/entry_64.S:306)  \u003C/TASK>  Allocated by task 43169:  kasan_save_stack (mm/kasan/common.c:39)  __kasan_slab_alloc (mm/kasan/common.c:45 mm/kasan/common.c:436 mm/kasan/common.c:469)  kmem_cache_alloc_node (mm/slab.h:750 mm/slub.c:3243 mm/slub.c:3293)  __alloc_skb (net/core/skbuff.c:414)  l2cap_recv_frag (./include/net/bluetooth/bluetooth.h:425 net/bluetooth/l2cap_core.c:8329) bluetooth  l2cap_recv_acldata (net/bluetooth/l2cap_core.c:8442) bluetooth  hci_rx_work (net/bluetooth/hci_core.c:3642 net/bluetooth/hci_core.c:3832) bluetooth  process_one_work (kernel/workqueue.c:2289)  worker_thread (./include/linux/list.h:292 kernel/workqueue.c:2437)  kthread (kernel/kthread.c:376)  ret_from_fork (arch/x86/entry/entry_64.S:306)  Freed by task 27920:  kasan_save_stack (mm/kasan/common.c:39)  kasan_set_track (mm/kasan/common.c:45)  kasan_set_free_info (mm/kasan/generic.c:372)  ____kasan_slab_free (mm/kasan/common.c:368 mm/kasan/common.c:328)  slab_free_freelist_hook (mm/slub.c:1780)  kmem_cache_free (mm/slub.c:3536 mm/slub.c:3553)  skb_free_datagram (./include/net/sock.h:1578 ./include/net/sock.h:1639 net/core/datagram.c:323)  bt_sock_recvmsg (net/bluetooth/af_bluetooth.c:295) bluetooth  l2cap_sock_recvmsg (net/bluetooth/l2cap_sock.c:1212) bluetooth  sock_read_iter (net/socket.c:1087)  new_sync_read (./include/linux/fs.h:2052 fs/read_write.c:401)  vfs_read (fs/read_write.c:482)  ksys_read (fs/read_write.c:620)  do_syscall_64 (arch/x86/entry/common.c:50 arch/x86/entry/common.c:80)  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:120)",null,[],[],[],[14],{"_key":15},"CVE-2022-49910",[],[],[],"2025-05-01T15:16:16.147Z","2026-06-15T19:04:24.716475155Z",{"cisa_kev":22,"cisa_ransomware":22,"cisa_vendor":9,"epss_severity":9,"epss_score":9,"severity":9,"severity_score":9,"severity_version":9,"severity_source":9,"severity_vector":9,"severity_status":9},false,[24],{"url":25,"sources":26,"tags":28},"https://security-tracker.debian.org/tracker/CVE-2022-49910",[27],"osv_debian",[29],"Advisory",[],[],[33],{"source":27,"cvss_v2_0":9,"cvss_v3_0":9,"cvss_v3_1":34,"cvss_v4_0":9},{"baseScore":35,"baseSeverity":9,"vectorString":36,"impactScore":37,"exploitabilityScore":38},7.8,"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",9.8,4.6,[40],{"ecosystem":41,"name":42,"vendor":43,"product":42,"cpe_part":9,"purl_type":44,"purl_namespace":43,"purl_name":42,"source":9,"versions":45},"Debian","linux","debian","deb",[46,52,55,56],{"version":47,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":50,"version_end_type":51,"fixed_in":9},"lt5_10_158_1",true,"ecosystem","5.10.158-1","excluding",{"version":53,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":54,"version_end_type":51,"fixed_in":9},"lt6_0_8_1","6.0.8-1",{"version":53,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":54,"version_end_type":51,"fixed_in":9},{"version":53,"is_range":48,"range_type":49,"version_start":9,"version_start_type":9,"version_end":54,"version_end_type":51,"fixed_in":9}]