In the Linux kernel, the following vulnerability has been resolved:
wifi: virt_wifi: don't transfer operstate before register
virt_wifi_newlink() calls netif_stacked_transfer_operstate() before
register_netdevice(). If the lower device is dormant, that queues the
new netdev on lweventlist while it is still uninitialized. If
registration fails after that, for example because of an invalid name
such as "bad/name", free_netdev() immediately frees the object.
A
later linkwatch_fire_event() then use-after-frees the list entry. Move the transfer to after netdev_upper_dev_link(), as macvlan and
ipvlan already do.
Attack Parameters
Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
Vulnerable Products 8
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Linux Linux_Kernel
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
|
5.0
|
5.10.271
|
|
Linux Linux_Kernel
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
|
5.0
|
5.15.222
|
|
Linux Linux_Kernel
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
|
5.0
|
6.1.189
|
|
Linux Linux_Kernel
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
|
5.0
|
6.6.158
|
|
Linux Linux_Kernel
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
|
5.0
|
6.12.112
|
|
Linux Linux_Kernel
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
|
5.0
|
6.18.54
|
|
Linux Linux_Kernel
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
|
5.0
|
7.2.8
|
|
Linux Linux_Kernel
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
|
5.0
|
7.3-rc4
|
References 8
https://git.kernel.org/stable/c/293c56a66510bb7de073a1aba388e38abddff1fb
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/9ce26201f6dedf3fa02b97da8c67ee6f6c5f7225
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/b808a9af5fd21f9c68b0d024eda7535b5dce6a4e
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/ca49763c42c1089d654bf11b037980a9ede3772c
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/e5c8d7acd31b27057ea42cd405d0b3ece097bc89
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/e8304e25c6dabb8accf38b807969438d0ce84fd7
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/ee9ea1afd6990def51d52b3a0aecd5cfcc951da0
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/f9526054c2b2cace5916b7225603d008834ec011
416baaa9-dc9f-4396-8d5f-8c081fb06d67