Threats Tagged 'cve-2026-63804'
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Threats Tagged 'cve-2026-63804'
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In the Linux kernel, the following vulnerability has been resolved: gfs2: fix use-after-free in gfs2_qd_dealloc gfs2_qd_dealloc(), called as an RCU… (CVE-2026-63804)CVE-2026-63804 0 A use-after-free vulnerability in the Linux kernel's GFS2 filesystem was resolved by ensuring all RCU callbacks complete before freeing the superblock. The issue occurs in the gfs2_qd_dealloc() function, which accesses a freed superblock object during unmount operations. This can lead to unsafe memory access due to delayed RCU callbacks referencing freed memory. The fix adds an rcu_barrier() call to synchronize and prevent premature freeing. Join the discussion | GCVE Database | 07/19/2026, 12:30:23 UTC Added: 07/19/2026, 19:38:21 UTC |
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