mbox series

[SRU,F,0/1] CVE-2022-48674

Message ID 20240628082347.3176650-1-juerg.haefliger@canonical.com
Headers show
Series CVE-2022-48674 | expand

Message

Juerg Haefliger June 28, 2024, 8:23 a.m. UTC 
https://ubuntu.com/security/CVE-2022-48674

[ Impact ]

During stress testing with CONFIG_SMP disabled, KASAN reports as below:

==================================================================
BUG: KASAN: use-after-free in __mutex_lock+0xe5/0xc30
Read of size 8 at addr ffff8881094223f8 by task stress/7789


[ Test Case ]

Compile tested only.


[ Where Problems Could Occur ]

Isolated to the erofs driver. Only users of that filesystem may encounter issue. But
CONFIG_SMP is enabled in Ubuntu so this change should not make any difference at all.


Gao Xiang (1):
  erofs: fix pcluster use-after-free on UP platforms

 fs/erofs/internal.h | 29 -----------------------------
 1 file changed, 29 deletions(-)

Comments

Thibault Ferrante June 28, 2024, 12:14 p.m. UTC | #1 
On 28-06-2024 10:23, Juerg Haefliger wrote:
> https://ubuntu.com/security/CVE-2022-48674
> 
> [ Impact ]
> 
> During stress testing with CONFIG_SMP disabled, KASAN reports as below:
> 
> ==================================================================
> BUG: KASAN: use-after-free in __mutex_lock+0xe5/0xc30
> Read of size 8 at addr ffff8881094223f8 by task stress/7789
> 
> 
> [ Test Case ]
> 
> Compile tested only.
> 
> 
> [ Where Problems Could Occur ]
> 
> Isolated to the erofs driver. Only users of that filesystem may encounter issue. But
> CONFIG_SMP is enabled in Ubuntu so this change should not make any difference at all.
Shouldn't the CVE in this case reclassified as `Not vulnerable` ?

> 
> 
> Gao Xiang (1):
>    erofs: fix pcluster use-after-free on UP platforms
> 
>   fs/erofs/internal.h | 29 -----------------------------
>   1 file changed, 29 deletions(-)
>
Manuel Diewald June 28, 2024, 3:07 p.m. UTC | #2 
On Fri, Jun 28, 2024 at 10:23:46AM +0200, Juerg Haefliger wrote:
> https://ubuntu.com/security/CVE-2022-48674
> 
> [ Impact ]
> 
> During stress testing with CONFIG_SMP disabled, KASAN reports as below:
> 
> ==================================================================
> BUG: KASAN: use-after-free in __mutex_lock+0xe5/0xc30
> Read of size 8 at addr ffff8881094223f8 by task stress/7789
> 
> 
> [ Test Case ]
> 
> Compile tested only.
> 
> 
> [ Where Problems Could Occur ]
> 
> Isolated to the erofs driver. Only users of that filesystem may encounter issue. But
> CONFIG_SMP is enabled in Ubuntu so this change should not make any difference at all.
> 
> 
> Gao Xiang (1):
>   erofs: fix pcluster use-after-free on UP platforms
> 
>  fs/erofs/internal.h | 29 -----------------------------
>  1 file changed, 29 deletions(-)
> 
> -- 
> 2.40.1
> 
> 
> -- 
> kernel-team mailing list
> kernel-team@lists.ubuntu.com
> https://lists.ubuntu.com/mailman/listinfo/kernel-team

Acked-by: Manuel Diewald <manuel.diewald@canonical.com>