CVE-2026-90209: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: s390/debug: Fix deadlock during unregister Unregistering an s390dbf debug area while one of the associated debugfs files is being written to can cause a deadlock: $ echo >.../vmur/level $ rmmod vmur =================================================== debugfs write debugfs_file_get() debug_unregister() mutex_lock(debug_mutex) debugfs_remove() wait for debugfs_file_put() debug_file_ops.write() debug_input() mutex_lock(debug_mutex) ==> DEADLOCK Fix this by splitting debug_unregister() into an s390dbf and debugfs part, and running only the s390dbf part with debug_mutex locked.

Засегнати продукти

• Linux Linux: 9372a82892c2caa6bccab9a4081166fa769699f8 преди a214c3dacc779b2afcb0ac9c8001e45ee4ffb2ed; 9372a82892c2caa6bccab9a4081166fa769699f8 преди 183f8f6d64bb0510070c856b9927618c53014a7b; 9372a82892c2caa6bccab9a4081166fa769699f8 преди a08b70ed2d1ec907353a72f15163b8e34ff4b2f8; 9372a82892c2caa6bccab9a4081166fa769699f8 преди 45bb341d1b73eb293e0dd43d9b72bbc8b615d0ba; 9372a82892c2caa6bccab9a4081166fa769699f8 преди 5d83f3faa3fb7f23f298cfd40382611999de5d1d; 9372a82892c2caa6bccab9a4081166fa769699f8 преди 54e1259b75d6402a1d0cfb822b9bb2c507e53dab; 9372a82892c2caa6bccab9a4081166fa769699f8 преди 445c31ac638fd1af203d79bdf25fc0cb3149fbbc; c68ba4a708fbd0efdc384cd29250bb292a45e559; 86f9980909f31ab205323eeeb290fe3cbb4952b4; fe5793e90d3f572a87ba67fe2f0e1679fdff14f8; e234f66168f0d50c0d28154fb983a14e85c3c526; 5.4.146 преди 5.5; 5.10.65 преди 5.11; 5.13.17 преди 5.14; 5.14.4 преди 5.15
• Linux Linux: 5.15; преди 5.15; 5.15.221 до 5.15.*; 6.1.188 до 6.1.*; 6.6.157 до 6.6.*; 6.12.110 до 6.12.*; 6.18.52 до 6.18.*; 7.2.6 до 7.2.*; от 7.3 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99268
• CVE-2026-99266
• CVE-2026-99267

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-90209
• https://nvd.nist.gov/vuln/detail/CVE-2026-90209
• https://git.kernel.org/stable/c/a214c3dacc779b2afcb0ac9c8001e45ee4ffb2ed
• https://git.kernel.org/stable/c/183f8f6d64bb0510070c856b9927618c53014a7b
• https://git.kernel.org/stable/c/a08b70ed2d1ec907353a72f15163b8e34ff4b2f8
• https://git.kernel.org/stable/c/45bb341d1b73eb293e0dd43d9b72bbc8b615d0ba
• https://git.kernel.org/stable/c/5d83f3faa3fb7f23f298cfd40382611999de5d1d
• https://git.kernel.org/stable/c/54e1259b75d6402a1d0cfb822b9bb2c507e53dab
• https://git.kernel.org/stable/c/445c31ac638fd1af203d79bdf25fc0cb3149fbbc