cbcvebase.
CVE-2022-48857
published 2024-07-16

CVE-2022-48857: In the Linux kernel, the following vulnerability has been resolved: NFC: port100: fix use-after-free in port100_send_complete Syzbot reported UAF in…

PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.21%
10.7th percentile
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: __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/device.h:209 [inline] port100_probe+0x8a/0x1320 drivers/nfc/port100.c:1502 Freed by task 1255: kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38 kasan_set_track+0x21/0x30 mm/kasan/common.c:45 kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370 ____kasan_slab_free mm/kasan/common.c:366 [inline] ____kasan_slab_free+0xff/0x140 mm/kasan/common.c:328 kasan_slab_free include/linux/kasan.h:236 [inline] __cache_free mm/slab.c:3437 [inline] kfree+0xf8/0x2b0 mm/slab.c:3794 release_nodes+0x112/0x1a0 drivers/base/devres.c:501 devres_r

Affected

22 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 5.16.18-1 (bookworm)linux 5.16.18-1 (bookworm)
linuxlinux
linuxlinux>= 0347a6ab300a1532c298823408d6e51ccf4e4f45 < 205c4ec78e71cbf561794e6043da80e7bae6790f205c4ec78e71cbf561794e6043da80e7bae6790f
linuxlinux>= 0347a6ab300a1532c298823408d6e51ccf4e4f45 < 32e866ae5a7af590597ef4bcff8451bf96d5f98032e866ae5a7af590597ef4bcff8451bf96d5f980
linuxlinux>= 0347a6ab300a1532c298823408d6e51ccf4e4f45 < b1db33d4e54bc35d8db96ce143ea0ef92e23d58eb1db33d4e54bc35d8db96ce143ea0ef92e23d58e
linuxlinux>= 0347a6ab300a1532c298823408d6e51ccf4e4f45 < cd2a5c0da0d1ddf11d1f84e9c9b1949f50f6e161cd2a5c0da0d1ddf11d1f84e9c9b1949f50f6e161
linuxlinux>= 0347a6ab300a1532c298823408d6e51ccf4e4f45 < 2b1c85f56512d49e43bc53741fce2f508cd900292b1c85f56512d49e43bc53741fce2f508cd90029
linuxlinux>= 0347a6ab300a1532c298823408d6e51ccf4e4f45 < 0e721b8f2ee5e11376dd55363f9ccb539d754b8a0e721b8f2ee5e11376dd55363f9ccb539d754b8a
linuxlinux>= 0347a6ab300a1532c298823408d6e51ccf4e4f45 < 7194737e1be8fdc89d2a9382bd2f371f7ee2eda87194737e1be8fdc89d2a9382bd2f371f7ee2eda8
linuxlinux>= 0347a6ab300a1532c298823408d6e51ccf4e4f45 < f80cfe2f26581f188429c12bd937eb905ad3ac7bf80cfe2f26581f188429c12bd937eb905ad3ac7b
linuxlinux_kernel>= 0 < 5.10.106-15.10.106-1
linuxlinux_kernel>= 0 < 5.16.18-15.16.18-1
linuxlinux_kernel>= 0 < 5.16.18-15.16.18-1
linuxlinux_kernel>= 0 < 5.16.18-15.16.18-1
linuxlinux_kernel>= 0 < 4.4.0-259.2934.4.0-259.293
linuxlinux_kernel>= 3.13 < 4.9.3074.9.307
linuxlinux_kernel>= 4.10 < 4.14.2724.14.272
linuxlinux_kernel>= 4.15 < 4.19.2354.19.235
linuxlinux_kernel>= 4.20 < 5.4.1855.4.185
linuxlinux_kernel>= 5.11 < 5.15.295.15.29
linuxlinux_kernel>= 5.16 < 5.16.155.16.15
linuxlinux_kernel>= 5.5 < 5.10.1065.10.106

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
vendor_ubuntu5.5MEDIUM
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.