7.8
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CVE-2025-21655 In the Linux kernel, the following vulnerability has been resolved: io_uring/eventfd: ensure io_eventfd_signal()…
Description
In the Linux kernel, the following vulnerability has been resolved: io_uring/eventfd: ensure io_eventfd_signal() defers another RCU period io_eventfd_do_signal() is invoked from an RCU callback, but when dropping the reference to the io_ev_fd, it calls io_eventfd_free() directly if the refcount drops to zero. This isn't correct, as any potential freeing of the io_ev_fd should be deferred another RCU grace period. Just call io_eventfd_put() rather than open-code the dec-and-test and free, which will correctly defer it another RCU grace period.
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| Linux 6.13 | premières → < 6.13 | 6.13 |
| Linux 6.12 | premières → < 6.12.10 | 6.12.10 |
| Linux 6.6 | premières → < 6.6.72 | 6.6.72 |
| Linux | 6.1 | 6.1.125 |
| SIMATIC S7-1500 CPU 1518-4 PN/DP MFP 3.1 | 3.1.7 → dernières | Pas de correctif indiqué |
| SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP 3.1 | 3.1.7 → dernières | Pas de correctif indiqué |
| SIPLUS S7-1500 CPU 1518-4 PN/DP MFP 3.1 | 3.1.7 → dernières | Pas de correctif indiqué |
Autres CVE de Linux
Les 18286 CVE de Linux →
CVE-2026-100082
xen-blkback: Avoid UAF when reading I/O statistics
Non notée
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xen-netback: defer xenvif_mcast_addr_list_free()
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CVE-2026-100080
xen-netback: Fix UAF when reading statistics data
Non notée
CVE-2026-99270
tcp: Fix potential UAF in reqsk_timer_handler().
8.1
Élevée