CVE-2022-48857 — NFC: port100: fix use-after-free in port100_send_complete

Affected: Linux

In the Linux kernel, the following vulnerability has been resolved:

NFC: port100: fix use-after-free in port100_send_complete

Syzbot reported UAF in port100_send_complete(). The root case is in missing usb_kill_urb() calls on error handling path of ->probe function.

port100_send_complete() accesses devm allocated memory which will be freed on probe failure. We should kill this urbs before returning an error from probe function to prevent reported use-after-free

Fail log:

BUG: KASAN: use-after-free in port100_send_complete+0x16e/0x1a0 drivers/nfc/port100.c:935 Read of size 1 at addr ffff88801bb59540 by task ksoftirqd/2/26 ... Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 print_address_description.constprop.0.cold+0x8d/0x303 mm/kasan/report.c:255 __kasan_report mm/kasan/report.c:442 [inline] kasan_report.cold+0x83/0xdf mm/kasan/report.c:459 port100_send_complete+0x16e/0x1a0 drivers/nfc/port100.c:935 __usb_hcd_giveback_urb+0x2b0/0x5c0 drivers/usb/core/hcd.c:1670

...

Allocated by task 1255: kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38 kasan_set_track mm/kasan/common.c:45 [inline] set_alloc_info mm/kasan/common.c:436 [inline] ____kasan_kmalloc mm/kasan/common.c:515 [inline] ____kasan_kmalloc mm/kasan/common.c:474 [inline] __kasan_kmalloc+0xa6/0xd0 mm/kasan/common.c:524 alloc_dr drivers/base/devres.c:116 [inline] devm_kmalloc+0x96/0x1d0 drivers/base/devres.c:823 devm_kzalloc include/linux/devi…

USN-7039-1 — linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities

Affected: Ubuntu:Pro:14.04:LTS: linux-aws, Ubuntu:Pro:14.04:LTS: linux-lts-xenial, Ubuntu:Pro:16.04:LTS: linux, Ubuntu:Pro:16.04:LTS: linux-aws, Ubuntu:Pro:16.04:LTS: linux-kvm

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - GPU drivers; - Input Device (Tablet) drivers; - Modular ISDN driver; - Multiple devices driver; - Network drivers; - Near Field Communication (NFC) drivers; - SCSI drivers; - GCT GDM724x LTE driver; - USB subsystem; - VFIO drivers; - GFS2 file system; - JFS file system; - NILFS2 file system; - Networking core; - IPv4 networking; - L2TP protocol; - Netfilter; - RxRPC session sockets; (CVE-2024-26651, CVE-2024-38583, CVE-2023-52527, CVE-2024-26880, CVE-2022-48850, CVE-2024-26733, CVE-2021-47188, CVE-2024-42154, CVE-2023-52809, CVE-2024-42228, CVE-2022-48863, CVE-2022-48836, CVE-2022-48838, CVE-2024-26677, CVE-2024-27437, CVE-2022-48857, CVE-2022-48791, CVE-2021-47181, CVE-2024-26851, CVE-2024-40902, CVE-2022-48851, CVE-2024-38570)

Most recent entries from all

CVE-2022-48857 — NFC: port100: fix use-after-free in port100_send_complete

USN-7039-1 — linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities