Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: block: fix q->blkg_list corruption during disk rebind Multiple gendisk instances can allocated/added for single request queue in case of disk rebind. blkg may still stay in q->blkg_list when calling blkcg_init_disk() for rebind, then q->blkg_list becomes corrupted. Fix the list corruption issue by: - add blkg_init_queue() to initialize q->blkg_list & q->blkcg_mutex only - move calling blkg_init_queue() into blk_alloc_queue() The list corruption should be started since commit f1c006f1c685 ("blk-cgroup: synchronize pd_free_fn() from blkg_free_workfn() and blkcg_deactivate_policy()") which delays removing blkg from q->blkg_list into blkg_free_workfn().
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 81c1188905f88b77743d1fdeeedfc8cb7b67787d before b5dae1cd0d8368b4338430ff93403df67f0b8bcc; affected bfe46d2efe46c5c952f982e2ca94fe2ec5e58e2a before 083b58373463a6e5ee60ecb135269348f68ad7df; affected 1059699f87eb0b3aa9d574b91a572d534897134a before 740ffad95ca8033bd6e080ed337655b13b4d38ac; affected 1059699f87eb0b3aa9d574b91a572d534897134a before 858c489d81d659af17a4d11cfaad2afb42e47a76; affected 1059699f87eb0b3aa9d574b91a572d534897134a before 8b8ace080319a866f5dfe9da8e665ae51d971c54; affected 6.1.16 before 6.1.17; affected 6.2.3 before 6.2.4 |
| Linux / Linux | affected 5.18; unaffected 0 before 5.18; unaffected 6.1.17 through 6.1.*; unaffected 6.2.4 through 6.2.*; unaffected 6.6.28 through 6.6.*; unaffected 6.8.7 through 6.8.*; unaffected 6.9 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/b5dae1cd0d8368b4338430ff93403df67f0b8bcc
- https://git.kernel.org/stable/c/083b58373463a6e5ee60ecb135269348f68ad7df
- https://git.kernel.org/stable/c/740ffad95ca8033bd6e080ed337655b13b4d38ac
- https://git.kernel.org/stable/c/858c489d81d659af17a4d11cfaad2afb42e47a76
- https://git.kernel.org/stable/c/8b8ace080319a866f5dfe9da8e665ae51d971c54
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.