cbcvebase.
CVE-2023-53199
published 2025-09-15

CVE-2023-53199: In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: hif_usb: clean up skbs if ath9k_hif_usb_rx_stream() fails Syzkaller detected a…

PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.15%
4.3th percentile
In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: hif_usb: clean up skbs if ath9k_hif_usb_rx_stream() fails Syzkaller detected a memory leak of skbs in ath9k_hif_usb_rx_stream(). While processing skbs in ath9k_hif_usb_rx_stream(), the already allocated skbs in skb_pool are not freed if ath9k_hif_usb_rx_stream() fails. If we have an incorrect pkt_len or pkt_tag, the input skb is considered invalid and dropped. All the associated packets already in skb_pool should be dropped and freed. Added a comment describing this issue. The patch also makes remain_skb NULL after being processed so that it cannot be referenced after potential free. The initialization of hif_dev fields which are associated with remain_skb (rx_remain_len, rx_transfer_len and rx_pad_len) is moved after a new remain_skb is allocated. Found by Linux Verification Center (linuxtesting.org) with Syzkaller.

Affected

19 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.20-1 (bookworm)linux 6.1.20-1 (bookworm)
linuxlinux——
linuxlinux>= 44b23b488d44e56d467764ecb661830e5b02b308 < 3fc6401fafde11712a83089fa2cc874cfd10e2cd3fc6401fafde11712a83089fa2cc874cfd10e2cd
linuxlinux>= 44b23b488d44e56d467764ecb661830e5b02b308 < cd8316767099920a5d41feed1afab0c482a43e9fcd8316767099920a5d41feed1afab0c482a43e9f
linuxlinux>= 44b23b488d44e56d467764ecb661830e5b02b308 < f26dd69f61eff2eedf5df2d199bdd23108309947f26dd69f61eff2eedf5df2d199bdd23108309947
linuxlinux>= 44b23b488d44e56d467764ecb661830e5b02b308 < 61490d2710277e8a55009b7682456ae22f8087cf61490d2710277e8a55009b7682456ae22f8087cf
linuxlinux>= 44b23b488d44e56d467764ecb661830e5b02b308 < 9acdec72787af1bc8ed92711b52118c8e3e638a29acdec72787af1bc8ed92711b52118c8e3e638a2
linuxlinux>= 44b23b488d44e56d467764ecb661830e5b02b308 < c766e37fccd5a5c5059be7efcd9618bf8a2c17c3c766e37fccd5a5c5059be7efcd9618bf8a2c17c3
linuxlinux>= 44b23b488d44e56d467764ecb661830e5b02b308 < 0af54343a76263a12dbae7fafb64eb47c4a6ad380af54343a76263a12dbae7fafb64eb47c4a6ad38
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>= 2.6.38 < 4.19.2764.19.276
linuxlinux_kernel>= 4.20 < 5.4.2355.4.235
linuxlinux_kernel>= 5.11 < 5.15.995.15.99
linuxlinux_kernel>= 5.16 < 6.1.166.1.16
linuxlinux_kernel>= 5.5 < 5.10.1735.10.173
linuxlinux_kernel>= 6.2 < 6.2.36.2.3

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
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.