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CVE-2026-80558: Linux

9.8

CVSS 3.1

Няма данни

Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

Няма потвърждение

Атакува се

Няма данни

Време до експлоатация

Атакува се по мрежата, без особени условия, без вход и без действие от потребителя.

  • Експлоатация: няма данни за експлоатация
  • Атаката може да се автоматизира

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: libceph: Avoid using invalid osd indices from primary_temp A corrupted osdmap received from a Ceph monitor or OSD may contain osd indices in its pg_temp, primary_temp, pg_upmap, and pg_upmap_items parts that don't exist, i.e., that are greater than max_osd or smaller than CEPH_HOMELESS_OSD (-1). These indices are used to create the up and acting set in ceph_pg_to_up_acting_osds(), called from calc_target(). While most of these osd indices are checked, the one from primary_temp is not. Subsequently, this may lead to calc_target() returning this (potentially invalid) index as target osd for a (linger) request. Because the osd_state, osd_weight, and osd_addr arrays only contain max_osd entries (with indices 0 to max_osd -1), this leads to out-of-bounds accesses when trying to read values from these arrays. This patch fixes the issue by adding a check to get_temp_osds(), so that only valid osd indices from primary_temp are used, and it falls back to using the primary from pg_temp or the up set if it is invalid. [ idryomov: changelog ]

Засегнати продукти

  • Linux Linux: 5e8d4d36bf23bb7baf027c479d54395840219928 преди 505fc50b8ff8e687b7e3ef6866269dea27366224; 5e8d4d36bf23bb7baf027c479d54395840219928 преди 1c705fe8e59c6b16f48964973fb23c8ec4735b73; 5e8d4d36bf23bb7baf027c479d54395840219928 преди dfe1877d351b99eb1b1a62a3fc2d174220e88e20; 5e8d4d36bf23bb7baf027c479d54395840219928 преди e2ffeec85201b2bb748e99e12539ee1b92f62796; 5e8d4d36bf23bb7baf027c479d54395840219928 преди 6799d4a916ffcb3d450d8440f9fe0f0862f768d6; 5e8d4d36bf23bb7baf027c479d54395840219928 преди 4f392fec075562dc93bb0c69f37423ca2af9b48f; 5e8d4d36bf23bb7baf027c479d54395840219928 преди e009c5f0ad634c62f5c48a41f1f3c019ecf52555; 5e8d4d36bf23bb7baf027c479d54395840219928 преди 3660b98d1204b419f6a77e9a295f148dcf38d042
  • Linux Linux: 3.15; преди 3.15; 5.10.266 до 5.10.*; 5.15.217 до 5.15.*; 6.1.184 до 6.1.*; 6.6.153 до 6.6.*; 6.12.105 до 6.12.*; 6.18.46 до 6.18.*; 7.1.10 до 7.1.*; от 7.2 нататък

История

  • 26 август 2026 Публикувано

Други уязвимости в Linux Linux

Първоизточници

CVE-2026-80558: Linux | freedomonline.bg