cbcvebase.
CVE-2023-53138
published 2025-05-02

CVE-2023-53138: In the Linux kernel, the following vulnerability has been resolved: net: caif: Fix use-after-free in cfusbl_device_notify() syzbot reported use-after-free in…

PriorityP339high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.17%
6.5th percentile
In the Linux kernel, the following vulnerability has been resolved: net: caif: Fix use-after-free in cfusbl_device_notify() syzbot reported use-after-free in cfusbl_device_notify() [1]. This causes a stack trace like below: BUG: KASAN: use-after-free in cfusbl_device_notify+0x7c9/0x870 net/caif/caif_usb.c:138 Read of size 8 at addr ffff88807ac4e6f0 by task kworker/u4:6/1214 CPU: 0 PID: 1214 Comm: kworker/u4:6 Not tainted 5.19.0-rc3-syzkaller-00146-g92f20ff72066 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 print_address_description.constprop.0.cold+0xeb/0x467 mm/kasan/report.c:313 print_report mm/kasan/report.c:429 [inline] kasan_report.cold+0xf4/0x1c6 mm/kasan/report.c:491 cfusbl_device_notify+0x7c9/0x870 net/caif/caif_usb.c:138 notifier_call_chain+0xb5/0x200 kernel/notifier.c:87 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1945 call_netdevice_notifiers_extack net/core/dev.c:1983 [inline] call_netdevice_notifiers net/core/dev.c:1997 [inline] netdev_wait_allrefs_any net/core/dev.c:10227 [inline] netdev_run_todo+0xbc0/0x10f0 net/core/dev.c:10341 default_device_exit_batch+0x44e/0x590 net/core/dev.c:11334 ops_exit_list+0x125/0x170 net/core/net_namespace.c:167 cleanup_net+0x4ea/0xb00 net/core/net_namespace.c:594 process_one_work+0x996/0x1610 kernel/workqueue.c:2289 worker_thread+0x665/0x1080 kernel/workqueue.c:2436 kthread+0x2e9/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302 When unregistering a net device, unregister_netdevice_many_notify() sets the device's reg_state to NETREG_UNREGISTERING, calls notifiers with NETDEV_UNREGISTER, and adds the device to the todo list. Later on, devices in the todo list are processed by netdev_run_todo(). netdev_run_todo() waits devices' reference count become 1 while rebdoadcasting NETDEV_UNREGISTER notificat

Affected

22 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.20-1 (bookworm)linux 6.1.20-1 (bookworm)
linuxlinux——
linuxlinux>= 7ad65bf68d705b445ef10b77ab50dab22be185ee < 68a45c3cf0e2242a533657f4f535d9b6a7447a7968a45c3cf0e2242a533657f4f535d9b6a7447a79
linuxlinux>= 7ad65bf68d705b445ef10b77ab50dab22be185ee < 1793da97a23e31c5bf06631f3f3e5a25f368fd641793da97a23e31c5bf06631f3f3e5a25f368fd64
linuxlinux>= 7ad65bf68d705b445ef10b77ab50dab22be185ee < 9dc16be373b382ddd4c274052a6e870a95e76c019dc16be373b382ddd4c274052a6e870a95e76c01
linuxlinux>= 7ad65bf68d705b445ef10b77ab50dab22be185ee < c3aaec463a632cf4187dc017e421bfa69d7834a9c3aaec463a632cf4187dc017e421bfa69d7834a9
linuxlinux>= 7ad65bf68d705b445ef10b77ab50dab22be185ee < 3f14457e1584224f4296af613bbd99deb60b5d913f14457e1584224f4296af613bbd99deb60b5d91
linuxlinux>= 7ad65bf68d705b445ef10b77ab50dab22be185ee < 287027d8a567168a5d8ce5cb0cba16a34791a48c287027d8a567168a5d8ce5cb0cba16a34791a48c
linuxlinux>= 7ad65bf68d705b445ef10b77ab50dab22be185ee < d1a11bbdbb5ea9f172019c5a4a3e9d8eabd72179d1a11bbdbb5ea9f172019c5a4a3e9d8eabd72179
linuxlinux>= 7ad65bf68d705b445ef10b77ab50dab22be185ee < 9781e98a97110f5e76999058368b4be76a7884849781e98a97110f5e76999058368b4be76a788484
linuxlinux_kernel——
linuxlinux_kernel>= 0 < 5.10.178-15.10.178-1
linuxlinux_kernel>= 0 < 6.1.20-16.1.20-1
linuxlinux_kernel>= 0 < 6.1.20-16.1.20-1
linuxlinux_kernel>= 0 < 6.1.20-16.1.20-1
linuxlinux_kernel>= 3.3 < 4.14.3104.14.310
linuxlinux_kernel>= 4.15 < 4.19.2784.19.278
linuxlinux_kernel>= 4.20 < 5.4.2375.4.237
linuxlinux_kernel>= 5.11 < 5.15.1035.15.103
linuxlinux_kernel>= 5.16 < 6.1.206.1.20
linuxlinux_kernel>= 5.5 < 5.10.1755.10.175
linuxlinux_kernel>= 6.2 < 6.2.76.2.7

CVSS provenance

nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
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