CVE-2026-43299
MediumSummary
W jądrze Linuxa rozwiązano podatność związaną z systemem plików btrfs, która występowała podczas obsługi błędu ENOSPC. W przypadku wystąpienia tego błędu, btrfs przełączał się w tryb tylko do odczytu, co było oczekiwanym zachowaniem, ale prowadziło do problemów w krytycznych ścieżkach.
Risk Assessment
Organizacje mogą napotkać problemy z dostępnością danych, gdy system plików btrfs przechodzi w tryb tylko do odczytu w wyniku błędu ENOSPC, co może prowadzić do utraty danych lub przerwy w działaniu usług.
Recommendation
Zaleca się aktualizację jądra Linuxa do najnowszej wersji, aby usunąć tę podatność oraz monitorowanie systemów plików btrfs w celu wczesnego wykrywania błędów ENOSPC.
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Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: btrfs: do not ASSERT() when the fs flips RO inside btrfs_repair_io_failure() [BUG] There is a bug report that when btrfs hits ENOSPC error in a critical path, btrfs flips RO (this part is expected, although the ENOSPC bug still ne
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

