Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: liveupdate: fix u-a-f in luo_file_unpreserve_files() and luo_file_finish() In luo_file_unpreserve_files() and luo_file_finish(), reorder module_put() and xa_erase() to ensure the file handler module remains pinned while its operations are being accessed. Specifically, luo_get_id() dereferences fh->ops->get_id, so the module reference must be held until after xa_erase() (which calls luo_get_id) completes. For luo_file_finish(), this requires moving the module_put() call out of the luo_file_finish_one() helper and into the main loop of luo_file_finish() itself.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 00d0b372374f2528394aabf7b1f53f8dafe294de before f7fca3db635022429382cf26e5b08b33558e375d; affected 00d0b372374f2528394aabf7b1f53f8dafe294de before 291dcd37c8c8f8f8e1bccc92228f44bf371762a8 |
| Linux / Linux | affected 7.1; unaffected 0 before 7.1; unaffected 7.1.5 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.