Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: HSI: ssi_protocol: Fix use after free vulnerability in ssi_protocol Driver Due to Race Condition In the ssi_protocol_probe() function, &ssi->work is bound with ssip_xmit_work(), In ssip_pn_setup(), the ssip_pn_xmit() function within the ssip_pn_ops structure is capable of starting the work. If we remove the module which will call ssi_protocol_remove() to make a cleanup, it will free ssi through kfree(ssi), while the work mentioned above will be used. The sequence of operations that may lead to a UAF bug is as follows: CPU0 CPU1 | ssip_xmit_work ssi_protocol_remove | kfree(ssi); | | struct hsi_client *cl = ssi->cl; | // use ssi Fix it by ensuring that the work is canceled before proceeding with the cleanup in ssi_protocol_remove().
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected df26d639e2f4628732a8da5a0f71e4e652ce809b before d03abc1c2b21324550fa71e12d53e7d3498e0af6; affected df26d639e2f4628732a8da5a0f71e4e652ce809b before 4a8c29beb8a02b5a0a9d77d608aa14b6f88a6b86; affected df26d639e2f4628732a8da5a0f71e4e652ce809b before 72972552d0d0bfeb2dec5daf343a19018db36ffa; affected df26d639e2f4628732a8da5a0f71e4e652ce809b before d58493832e284f066e559b8da5ab20c15a2801d3; affected df26d639e2f4628732a8da5a0f71e4e652ce809b before 58eb29dba712ab0f13af59ca2fe545f5ce360e78; affected df26d639e2f4628732a8da5a0f71e4e652ce809b before ae5a6a0b425e8f76a9f0677e50796e494e89b088; affected df26d639e2f4628732a8da5a0f71e4e652ce809b before 834e602d0cc7c743bfce734fad4a46cefc0f9ab1; affected df26d639e2f4628732a8da5a0f71e4e652ce809b before 4b4194c9a7a8f92db39e8e86c85f4fb12ebbec4f; affected df26d639e2f4628732a8da5a0f71e4e652ce809b before e3f88665a78045fe35c7669d2926b8d97b892c11 |
| Linux / Linux | affected 4.8; unaffected 0 before 4.8; unaffected 5.4.293 through 5.4.*; unaffected 5.10.237 through 5.10.*; unaffected 5.15.181 through 5.15.*; unaffected 6.1.135 through 6.1.*; unaffected 6.6.88 through 6.6.*; unaffected 6.12.24 through 6.12.*; unaffected 6.13.12 through 6.13.*; unaffected 6.14.3 through 6.14.*; unaffected 6.15 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/d03abc1c2b21324550fa71e12d53e7d3498e0af6
- https://git.kernel.org/stable/c/4a8c29beb8a02b5a0a9d77d608aa14b6f88a6b86
- https://git.kernel.org/stable/c/72972552d0d0bfeb2dec5daf343a19018db36ffa
- https://git.kernel.org/stable/c/d58493832e284f066e559b8da5ab20c15a2801d3
- https://git.kernel.org/stable/c/58eb29dba712ab0f13af59ca2fe545f5ce360e78
- https://git.kernel.org/stable/c/ae5a6a0b425e8f76a9f0677e50796e494e89b088
- https://git.kernel.org/stable/c/834e602d0cc7c743bfce734fad4a46cefc0f9ab1
- https://git.kernel.org/stable/c/4b4194c9a7a8f92db39e8e86c85f4fb12ebbec4f
- https://git.kernel.org/stable/c/e3f88665a78045fe35c7669d2926b8d97b892c11
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.