CVE-2022-49053 — scsi: target: tcmu: Fix possible page UAF
In the Linux kernel, the following vulnerability has been resolved: scsi: target: tcmu: Fix possible page UAF tcmu_try_get_data_page() looks up pages under cmdr_lock, but it d…
Published: 2025-02-26 · CVSS: 7.8 · CVSS 3.1
In the Linux kernel, the following vulnerability has been resolved: scsi: target: tcmu: Fix possible page UAF tcmu_try_get_data_page() looks up pages under cmdr_lock, but it does not take refcount properly and just returns page pointer. When tcmu_try_get_data_page() returns, the returned page may have been freed by tcmu_blocks_release(). We need to get_page() under cmdr_lock to avoid concurrent tcmu_blocks_release().
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7