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TI-2022-24626 Aliases CVE-2022-49111GHSA-5wpf-jxv5-j2rg

Bluetooth: Fix use after free in hci_send_acl

Priority MEDIUM 40CWE-416Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 18 fixed, 3 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-416 and the CVSS impact.

Summary

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix use after free in hci_send_acl This fixes the following trace caused by receiving HCI_EV_DISCONN_PHY_LINK_COMPLETE which does call hci_conn_del without first checking if conn->type is in fact AMP_LINK and in case it is do properly cleanup upper layers with hci_disconn_cfm: ================================================================== BUG: KASAN: use-after-free in hci_send_acl+0xaba/0xc50 Read of size 8 at addr ffff88800e404818 by task bluetoothd/142 CPU: 0 PID: 142 Comm: bluetoothd Not tainted 5.17.0-rc5-00006-gda4022eeac1a #7 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0x45/0x59 print_address_description.constprop.0+0x1f/0x150 kasan_report.cold+0x7f/0x11b hci_send_acl+0xaba/0xc50 l2cap_do_send+0x23f/0x3d0 l2cap_chan_send+0xc06/0x2cc0 l2cap_sock_sendmsg+0x201/0x2b0 sock_sendmsg+0xdc/0x110 sock_write_iter+0x20f/0x370 do_iter_readv_writev+0x343/0x690 do_iter_write+0x132/0x640 vfs_writev+0x198/0x570 do_writev+0x202/0x280 do_syscall_64+0x38/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae RSP: 002b:00007ffce8a099b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 Code: 0f 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 14 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10 RDX: 0000000000000001 RSI: 00007ffce8a099e0 RDI: 0000000000000015 RAX: ffffffffffffffda RBX: 00007ffce8a099e0 RCX: 00007f788fc3cf77 R10: 00007ffce8af7080 R11: 0000000000000246 R12: 000055e4ccf75580 RBP: 0000000000000015 R08: 0000000000000002 R09: 0000000000000001 </TASK> R13: 000055e4ccf754a0 R14: 000055e4ccf75cd0 R15: 000055e4ccf4a6b0 Allocated by task 45: kasan_save_stack+0x1e/0x40 __kasan_kmalloc+0x81/0xa0 hci_chan_create+0x9a/0x2f0 l2cap_conn_add.part.0+0x1a/0xdc0 l2cap_connect_cfm+0x236/0x1000 le_conn_complete_evt+0x15a7/0x1db0 hci_le_conn_complete_evt+0x226/0x2c0 hci_le_meta_evt+0x247/0x450 hci_event_packet+0x61b/0xe90 hci_rx_work+0x4d5/0xc50 process_one_work+0x8fb/0x15a0 worker_thread+0x576/0x1240 kthread+0x29d/0x340 ret_from_fork+0x1f/0x30 Freed by task 45: kasan_save_stack+0x1e/0x40 kasan_set_track+0x21/0x30 kasan_set_free_info+0x20/0x30 __kasan_slab_free+0xfb/0x130 kfree+0xac/0x350 hci_conn_cleanup+0x101/0x6a0 hci_conn_del+0x27e/0x6c0 hci_disconn_phylink_complete_evt+0xe0/0x120 hci_event_packet+0x812/0xe90 hci_rx_work+0x4d5/0xc50 process_one_work+0x8fb/0x15a0 worker_thread+0x576/0x1240 kthread+0x29d/0x340 ret_from_fork+0x1f/0x30 The buggy address belongs to the object at ffff88800c0f0500 The buggy address is located 24 bytes inside of which belongs to the cache kmalloc-128 of size 128 The buggy address belongs to the page: 128-byte region [ffff88800c0f0500, ffff88800c0f0580) flags: 0x100000000000200(slab|node=0|zone=1) page:00000000fe45cd86 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xc0f0 raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 raw: 0100000000000200 ffffea00003a2c80 dead000000000004 ffff8880078418c0 page dumped because: kasan: bad access detected ffff88800c0f0400: 00 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc Memory state around the buggy address: >ffff88800c0f0500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88800c0f0480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88800c0f0580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ---truncated---

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00344 28th percentileScored 2026-11-07
Fix Partial Linux (Linux): 4.9.311, 4.14.276, 4.19.238 +6Red Hat: 9 advisoriesRed Hat: 18 fixed, 3 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux3.8 and later4.9.311, 4.14.276, 4.19.238, 5.4.189, 5.10.111, 5.15.34, 5.16.20, 5.17.3, 5.18Patch availableCNA
  • Linux VendorLinux Affected 3.8 and later Fixed in 4.9.311, 4.14.276, 4.19.238, 5.4.189, 5.10.111, 5.15.34, 5.16.20, 5.17.3, 5.18 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*before 4.9.311; 4.10 to before 4.14.276; 4.15 to before 4.19.238; 4.20 to before 5.4.189; 5.5 to before 5.10.111; 5.11 to before 5.15.34; 5.16 to before 5.16.20; 5.17 to before 5.17.3VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 4.9.311; 4.10 to before 4.14.276; 4.15 to before 4.19.238; 4.20 to before 5.4.189; 5.5 to before 5.10.111; 5.11 to before 5.15.34; 5.16 to before 5.16.20; 5.17 to before 5.17.3 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 4.9.311, 4.14.276, 4.19.238, 5.4.189, 5.10.111, 5.15.34, 5.16.20, 5.17.3, 5.18

Red Hat 9 advisories

  • RHSA-2025:10673 Released 2025-07-09 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS AUS (v.8.6) bpftool-4.18.0-372.151.1.el8_6, kernel-4.18.0-372.151.1.el8_6, kernel-abi-stablelists-4.18.0-372.151.1.el8_6 +14
    • Red Hat Enterprise Linux BaseOS E4S (v.8.6) bpftool-4.18.0-372.151.1.el8_6, kernel-4.18.0-372.151.1.el8_6, kernel-abi-stablelists-4.18.0-372.151.1.el8_6 +19
    • Red Hat Enterprise Linux BaseOS TUS (v.8.6) bpftool-4.18.0-372.151.1.el8_6, kernel-4.18.0-372.151.1.el8_6, kernel-abi-stablelists-4.18.0-372.151.1.el8_6 +14
  • RHSA-2025:10669 Released 2025-07-09 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-553.60.1.el8_10, kernel-4.18.0-553.60.1.el8_10, kernel-abi-stablelists-4.18.0-553.60.1.el8_10 +19
    • Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel-4.18.0-553.60.1.el8_10
  • RHSA-2025:10670 Released 2025-07-09 · Red Hat rating Important
    kernel-rt security update
    • Red Hat Enterprise Linux NFV (v. 8) kernel-rt-4.18.0-553.60.1.rt7.401.el8_10, kernel-rt-core-4.18.0-553.60.1.rt7.401.el8_10, kernel-rt-debug-4.18.0-553.60.1.rt7.401.el8_10 +9
    • Red Hat Enterprise Linux RT (v. 8) kernel-rt-4.18.0-553.60.1.rt7.401.el8_10, kernel-rt-core-4.18.0-553.60.1.rt7.401.el8_10, kernel-rt-debug-4.18.0-553.60.1.rt7.401.el8_10 +7
Show 6 more Red Hat advisories
  • RHSA-2025:10211 Released 2025-07-02 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux BaseOS E4S (v.8.8) bpftool-4.18.0-477.100.1.el8_8, kernel-4.18.0-477.100.1.el8_8, kernel-abi-stablelists-4.18.0-477.100.1.el8_8 +14
    • Red Hat Enterprise Linux BaseOS TUS (v.8.8) bpftool-4.18.0-477.100.1.el8_8, kernel-4.18.0-477.100.1.el8_8, kernel-abi-stablelists-4.18.0-477.100.1.el8_8 +14
  • RHSA-2025:10193 Released 2025-07-02 · Red Hat rating Moderate
    kernel-rt security update
    • Red Hat Enterprise Linux NFV E4S (v.9.0) kernel-rt-5.14.0-70.136.1.rt21.208.el9_0, kernel-rt-core-5.14.0-70.136.1.rt21.208.el9_0, kernel-rt-debug-5.14.0-70.136.1.rt21.208.el9_0 +9
    • Red Hat Enterprise Linux Real Time E4S (v.9.0) kernel-rt-5.14.0-70.136.1.rt21.208.el9_0, kernel-rt-core-5.14.0-70.136.1.rt21.208.el9_0, kernel-rt-debug-5.14.0-70.136.1.rt21.208.el9_0 +7
  • RHSA-2025:10179 Released 2025-07-02 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) bpftool-4.18.0-193.156.1.el8_2, kernel-4.18.0-193.156.1.el8_2, kernel-abi-whitelists-4.18.0-193.156.1.el8_2 +14
  • RHSA-2025:10174 Released 2025-07-01 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.0) kernel-debug-devel-5.14.0-70.136.1.el9_0, kernel-debug-devel-matched-5.14.0-70.136.1.el9_0, kernel-devel-5.14.0-70.136.1.el9_0 +5
    • Red Hat Enterprise Linux BaseOS E4S (v.9.0) bpftool-5.14.0-70.136.1.el9_0, kernel-5.14.0-70.136.1.el9_0, kernel-abi-stablelists-5.14.0-70.136.1.el9_0 +14
  • RHSA-2025:10005 Released 2025-07-01 · Red Hat rating Moderate
    kernel security update
    • Red Hat Enterprise Linux BaseOS AUS (v.8.4) bpftool-4.18.0-305.161.1.el8_4, kernel-4.18.0-305.161.1.el8_4, kernel-abi-stablelists-4.18.0-305.161.1.el8_4 +14
  • RHSA-2023:2458 Released 2023-05-09 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-284.11.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.11.1.el9_2, kernel-64k-devel-5.14.0-284.11.1.el9_2 +10
    • Red Hat Enterprise Linux BaseOS (v. 9) bpftool-7.0.0-284.11.1.el9_2, kernel-5.14.0-284.11.1.el9_2, kernel-64k-5.14.0-284.11.1.el9_2 +29
    • Red Hat Enterprise Linux CRB (v. 9) kernel-tools-libs-devel-5.14.0-284.11.1.el9_2

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 9AffectedNo fix yet
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2023:2458
Red Hat Enterprise Linux AppStream E4S (v.9.0)Fixed RHSA-2025:10174
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2025:10669
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2023:2458
Red Hat Enterprise Linux BaseOS AUS (v. 8.2)Fixed RHSA-2025:10179
Red Hat Enterprise Linux BaseOS AUS (v.8.4)Fixed RHSA-2025:10005
Red Hat Enterprise Linux BaseOS AUS (v.8.6)Fixed RHSA-2025:10673
Red Hat Enterprise Linux BaseOS E4S (v.8.6)Fixed RHSA-2025:10673
Red Hat Enterprise Linux BaseOS E4S (v.8.8)Fixed RHSA-2025:10211
Red Hat Enterprise Linux BaseOS E4S (v.9.0)Fixed RHSA-2025:10174
Red Hat Enterprise Linux BaseOS TUS (v.8.6)Fixed RHSA-2025:10673
Red Hat Enterprise Linux BaseOS TUS (v.8.8)Fixed RHSA-2025:10211
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2025:10669
Red Hat Enterprise Linux CRB (v. 9)Fixed RHSA-2023:2458
Red Hat Enterprise Linux NFV (v. 8)Fixed RHSA-2025:10670
Red Hat Enterprise Linux NFV E4S (v.9.0)Fixed RHSA-2025:10193
Red Hat Enterprise Linux RT (v. 8)Fixed RHSA-2025:10670
Red Hat Enterprise Linux Real Time E4S (v.9.0)Fixed RHSA-2025:10193
Not affected: 1 product
  • Red Hat Enterprise Linux 10

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-49111
  2. 2026-10-03 Alias added: GHSA-5wpf-jxv5-j2rg

References

Patch 9

  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
  • TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
  • TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
  • TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
  • TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
See all 15278 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences