In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: L2CAP: Fix uaf in l2cap_connect
[Syzbot reported] BUG: KASAN: slab-use-after-free in l2cap_connect.constprop.0+0x10d8/0x1270 net/bluetooth/l2cap_core.c:3949 Read of size 8 at addr ffff8880241e9800 by task kworker/u9:0/54
CPU: 0 UID: 0 PID: 54 Comm: kworker/u9:0 Not tainted 6.11.0-rc6-syzkaller-00268-g788220eee30d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Workqueue: hci2 hci_rx_work Call Trace: <TASK> __dump_stack lib/dump_stack.c:93 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:119 print_address_description mm/kasan/report.c:377 [inline] print_report+0xc3/0x620 mm/kasan/report.c:488 kasan_report+0xd9/0x110 mm/kasan/report.c:601 l2cap_connect.constprop.0+0x10d8/0x1270 net/bluetooth/l2cap_core.c:3949 l2cap_connect_req net/bluetooth/l2cap_core.c:4080 [inline] l2cap_bredr_sig_cmd net/bluetooth/l2cap_core.c:4772 [inline] l2cap_sig_channel net/bluetooth/l2cap_core.c:5543 [inline] l2cap_recv_frame+0xf0b/0x8eb0 net/bluetooth/l2cap_core.c:6825 l2cap_recv_acldata+0x9b4/0xb70 net/bluetooth/l2cap_core.c:7514 hci_acldata_packet net/bluetooth/hci_core.c:3791 [inline] hci_rx_work+0xaab/0x1610 net/bluetooth/hci_core.c:4028 process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3231 process_scheduled_works kernel/workqueue.c:3312 [inline] worker_thread+0x6c8/0xed0 kernel/workqueue.c:3389 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 ...
Freed by task 5245: kasan_save_stack+0x33/0x60 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:579 poison_slab_object+0xf7/0x160 mm/kasan/common.c:240 __kasan_slab_free+0x32/0x50 mm/kasan/common.c:256 kasan_slab_free include/linux/kasan.h:184 [inline] slab_free_hook mm/slub.c:2256 [inline] slab_free mm/slub.c:4477 [inline] kfree+0x12a/0x3b0 mm/slub.c:4598 l2cap_conn_free net/bluetooth/l2cap_core.c:1810 [inline] kref_put include/linux/kref.h:65 [inline] l2cap_conn_put net/bluetooth/l2cap_core.c:1822 [inline] l2cap_conn_del+0x59d/0x730 net/bluetooth/l2cap_core.c:1802 l2cap_connect_cfm+0x9e6/0xf80 net/bluetooth/l2cap_core.c:7241 hci_connect_cfm include/net/bluetooth/hci_core.h:1960 [inline] hci_conn_failed+0x1c3/0x370 net/bluetooth/hci_conn.c:1265 hci_abort_conn_sync+0x75a/0xb50 net/bluetooth/hci_sync.c:5583 abort_conn_sync+0x197/0x360 net/bluetooth/hci_conn.c:2917 hci_cmd_sync_work+0x1a4/0x410 net/bluetooth/hci_sync.c:328 process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3231 process_scheduled_works kernel/workqueue.c:3312 [inline] worker_thread+0x6c8/0xed0 kernel/workqueue.c:3389 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
CVSS Details
- CVSS 3.1 Base Score: 8.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linuxUpgrade linux-6.1 | Dec 2, 2024 | Oct 21, 2024 |
| Oracle_linux | — | Upgrade kernel-uek | Feb 10, 2025 | Oct 21, 2024 |
| Redhat_linux | — | Upgrade kernelNo solution existsUpgrade kernel-rt | May 15, 2025 | Oct 21, 2024 |
| Ubuntu | — | Upgrade linux-image-oracleUpgrade linux-image-oem-24.04aUpgrade linux-image-lowlatency-hwe-16.04Upgrade linux-image-gkeopUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-oem-osp1Upgrade linux-image-4.4.0-271-lowlatencyUpgrade linux-image-4.4.0-271-genericUpgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-kvm-5.4Upgrade linux-image-6.8.0-1019-raspiUpgrade linux-image-gcp-64kUpgrade linux-image-5.4.0-220-lowlatencyUpgrade linux-image-6.11.0-1010-lowlatency-64kUpgrade linux-image-gkeUpgrade linux-image-6.8.0-1020-oracleUpgrade linux-image-4.15.0-2084-gcp-fipsUpgrade linux-image-oem-20.04Upgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-lowlatency-hwe-18.04Upgrade linux-image-oracle-lts-24.04Upgrade linux-image-6.8.0-1025-azure-fdeUpgrade linux-image-6.8.0-57-genericUpgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-gkeop-5.15Upgrade linux-image-6.8.0-1024-oemUpgrade linux-image-5.4.0-1147-oracleUpgrade linux-image-5.15.0-135-lowlatency-64kUpgrade linux-image-lowlatency-64kUpgrade linux-image-4.15.0-1166-kvmUpgrade linux-image-oracle-lts-20.04Upgrade linux-image-lowlatency-5.4Upgrade linux-image-realtimeUpgrade linux-image-4.15.0-2121-aws-fipsUpgrade linux-image-snapdragon-hwe-18.04Upgrade linux-image-6.8.0-1020-oracle-64kUpgrade linux-image-5.15.0-1084-azureUpgrade linux-image-5.15.0-1077-gkeUpgrade linux-image-5.15.0-1075-intel-iotgUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-gcp-lts-18.04Upgrade linux-image-5.15.0-1033-nvidia-tegra-rtUpgrade linux-image-raspi-hwe-18.04Upgrade linux-image-virtualUpgrade linux-image-oem-24.04Upgrade linux-image-virtual-hwe-24.04Upgrade linux-image-generic-64kUpgrade linux-image-nvidiaUpgrade linux-image-nvidia-6.8Upgrade linux-image-gcp-lts-22.04Upgrade linux-image-5.15.0-1083-azure-fipsUpgrade linux-image-5.4.0-1152-gcp-fipsUpgrade linux-image-5.4.0-1148-oracleUpgrade linux-image-5.15.0-1079-gcpUpgrade linux-image-nvidia-tegra-rtUpgrade linux-image-5.4.0-1152-gcpUpgrade linux-image-azure-fips-4.15Upgrade linux-image-azure-fips-5.4Upgrade linux-image-generic-hwe-20.04Upgrade linux-image-oracle-4.15Upgrade linux-image-6.11.0-1015-oemUpgrade linux-image-4.4.0-1147-kvmUpgrade linux-image-5.15.0-1074-raspiUpgrade linux-image-gcp-lts-20.04Upgrade linux-image-aws-fipsUpgrade linux-image-generic-lpaeUpgrade linux-image-6.8.0-1022-nvidiaUpgrade linux-image-5.4.0-1155-azure-fipsUpgrade linux-image-5.15.0-136-generic-lpaeUpgrade linux-image-oem-22.04cUpgrade linux-image-6.11.0-1009-azure-fdeUpgrade linux-image-5.15.0-1080-awsUpgrade linux-image-fipsUpgrade linux-image-5.4.0-220-genericUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-6.8.0-1025-azureUpgrade linux-image-azure-lts-18.04Upgrade linux-image-oem-22.04dUpgrade linux-image-4.15.0-240-genericUpgrade linux-image-4.4.0-1116-fipsUpgrade linux-image-5.4.0-1132-raspiUpgrade linux-image-5.15.0-1074-nvidiaUpgrade linux-image-6.11.0-1010-lowlatencyUpgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-oem-20.04cUpgrade linux-image-5.4.0-1067-xilinx-zynqmpUpgrade linux-image-4.15.0-1183-awsUpgrade linux-image-azure-lts-22.04Upgrade linux-image-genericUpgrade linux-image-generic-hwe-16.04Upgrade linux-image-oem-22.04Upgrade linux-image-bluefieldUpgrade linux-image-xilinx-zynqmp-5.4Upgrade linux-image-5.15.0-1077-oracleUpgrade linux-image-virtual-lts-xenialUpgrade linux-image-intel-iot-realtimeUpgrade linux-image-oem-20.04bUpgrade linux-image-xilinx-zynqmpUpgrade linux-image-5.4.0-220-generic-lpaeUpgrade linux-image-5.15.0-1076-kvmUpgrade linux-image-aws-lts-18.04Upgrade linux-image-4.15.0-2100-azure-fipsUpgrade linux-image-intel-iotgUpgrade linux-image-5.4.0-1154-azureUpgrade linux-image-generic-lts-xenialUpgrade linux-image-azure-4.15Upgrade linux-image-oemUpgrade linux-image-5.15.0-1073-intel-iot-realtimeUpgrade linux-image-5.15.0-135-generic-lpaeUpgrade linux-image-6.11.0-18-generic-64kUpgrade linux-image-5.15.0-1044-xilinx-zynqmpUpgrade linux-image-intelUpgrade linux-image-5.15.0-1081-gcpUpgrade linux-image-5.4.0-1108-bluefieldUpgrade linux-image-oracle-lts-18.04Upgrade linux-image-oem-24.04bUpgrade linux-image-virtual-hwe-18.04Upgrade linux-image-6.11.0-1009-gcpUpgrade linux-image-nvidia-tegraUpgrade linux-image-5.15.0-135-genericUpgrade linux-image-generic-lpae-5.4Upgrade linux-image-5.15.0-1072-ibmUpgrade linux-image-oracle-lts-22.04Upgrade linux-image-5.15.0-1086-azureUpgrade linux-image-6.8.0-57-generic-64kUpgrade linux-image-6.11.0-18-genericUpgrade linux-image-gcp-4.15Upgrade linux-image-raspi2Upgrade linux-image-5.15.0-1021-nvidia-tegra-igxUpgrade linux-image-6.8.0-1019-gkeUpgrade linux-image-4.15.0-240-lowlatencyUpgrade linux-image-6.11.0-1005-realtimeUpgrade linux-image-6.11.0-1009-azureUpgrade linux-image-azure-lts-24.04Upgrade linux-image-6.8.0-1024-gcp-64kUpgrade linux-image-4.15.0-1138-fipsUpgrade linux-image-5.15.0-135-generic-64kUpgrade linux-image-aws-4.15Upgrade linux-image-oracle-64kUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-6.8.0-54-lowlatencyUpgrade linux-image-virtual-hwe-16.04Upgrade linux-image-6.8.0-1022-ibmUpgrade linux-image-5.15.0-1021-nvidia-tegra-igx-rtUpgrade linux-image-virtual-5.4Upgrade linux-image-5.15.0-1077-intel-iotgUpgrade linux-image-6.8.0-54-generic-64kUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-6.8.0-54-lowlatency-64kUpgrade linux-image-azure-lts-20.04Upgrade linux-image-6.11.0-1009-awsUpgrade linux-image-5.15.0-136-genericUpgrade linux-image-6.8.0-54-genericUpgrade linux-image-aws-5.4Upgrade linux-image-5.4.0-1136-kvmUpgrade linux-image-aws-fips-5.4Upgrade linux-image-5.4.0-1095-ibmUpgrade linux-image-6.8.0-1014-azure-nvidiaUpgrade linux-image-5.15.0-136-generic-64kUpgrade linux-image-5.15.0-135-lowlatencyUpgrade linux-image-5.15.0-1086-azure-fdeUpgrade linux-image-oem-20.04dUpgrade linux-image-5.15.0-1079-gcp-fipsUpgrade linux-image-aws-lts-24.04Upgrade linux-image-nvidia-64kUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-aws-lts-22.04Upgrade linux-image-azure-cvmUpgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-gcp-fips-5.4Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-awsUpgrade linux-image-6.11.0-1008-raspiUpgrade linux-image-azure-fde-lts-24.04Upgrade linux-image-6.8.0-1024-gcpUpgrade linux-image-ibm-lts-20.04Upgrade linux-image-aws-fips-4.15Upgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-5.15.0-1033-nvidia-tegraUpgrade linux-image-5.15.0-135-fipsUpgrade linux-image-5.15.0-1074-ibmUpgrade linux-image-gcpUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-azure-nvidiaUpgrade linux-image-5.4.0-1053-iotUpgrade linux-image-4.15.0-1145-oracleUpgrade linux-image-oem-22.04aUpgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-5.15.0-1080-aws-fipsUpgrade linux-image-nvidia-tegra-igx-rtUpgrade linux-image-gke-5.15Upgrade linux-image-ibm-classicUpgrade linux-image-4.15.0-1191-azureUpgrade linux-image-gcp-fipsUpgrade linux-image-5.4.0-1149-aws-fipsUpgrade linux-image-6.8.0-1022-nvidia-lowlatency-64kUpgrade linux-image-generic-5.4Upgrade linux-image-realtime-hwe-24.04Upgrade linux-image-azure-5.4Upgrade linux-image-raspi-nolpaeUpgrade linux-image-lowlatency-lts-xenialUpgrade linux-image-6.8.0-1022-nvidia-lowlatencyUpgrade linux-image-azure-fdeUpgrade linux-image-4.4.0-1146-awsUpgrade linux-image-snapdragon-5.4Upgrade linux-image-gcp-fips-4.15Upgrade linux-image-aws-hweUpgrade linux-image-kvmUpgrade linux-image-azureUpgrade linux-image-raspi-5.4Upgrade linux-image-bluefield-5.4Upgrade linux-image-generic-hwe-22.04Upgrade linux-image-generic-hwe-18.04Upgrade linux-image-5.4.0-1123-fipsUpgrade linux-image-6.11.0-1011-oracle-64kUpgrade linux-image-lowlatencyUpgrade linux-image-5.15.0-1080-realtimeUpgrade linux-image-6.11.0-1011-oracleUpgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-6.8.0-1006-gkeopUpgrade linux-image-6.8.0-1023-awsUpgrade linux-image-fips-5.4Upgrade linux-image-generic-hwe-24.04Upgrade linux-image-raspiUpgrade linux-image-oracle-5.4Upgrade linux-image-gcp-5.4Upgrade linux-image-4.15.0-1176-gcpUpgrade linux-image-azure-fipsUpgrade linux-image-6.8.0-1022-nvidia-64kUpgrade linux-image-5.15.0-1074-nvidia-lowlatencyUpgrade linux-image-5.4.0-1149-awsUpgrade linux-image-4.4.0-1184-awsUpgrade linux-image-oem-22.04bUpgrade linux-image-aws-lts-20.04Upgrade linux-image-ibmUpgrade linux-image-ibm-5.4Upgrade linux-image-nvidia-tegra-igxUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-5.15.0-1062-gkeopUpgrade linux-image-gkeop-6.8 | Feb 20, 2025 | Oct 21, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jul 2, 2025 | Oct 21, 2024 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub