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CVE-2023-52760

Description

In the Linux kernel, the following vulnerability has been resolved:gfs2: Fix slab-use-after-free in gfs2_qd_deallocIn gfs2_put_super(), whether withdrawn or not, the quota shouldbe cleaned up by gfs2_quota_cleanup().Otherwise, struct gfs2_sbd will be freed before gfs2_qd_dealloc (rcucallback) has run for all gfs2_quota_data objects, resulting inuse-after-free.Also, gfs2_destroy_threads() and gfs2_quota_cleanup() is already calledby gfs2_make_fs_ro(), so in gfs2_put_super(), after callinggfs2_make_fs_ro(), there is no need to call them again.

POC

Reference

No PoCs from references.

Github

- https://github.com/fkie-cad/nvd-json-data-feeds

- https://github.com/takaaki-fukunaga/cvechecker