CVE-2026-64593

In the Linux kernel, the following vulnerability has been resolved: btrfs: do not trim a device which is not writeable [BUG] There is a bug report that btrfs/242 can randomly fail with the following NULL pointer dereference: run fstests btrfs/242 at 2026-06-01 10:25:08 BTRFS: device fsid d4d7f234-487c-4787-88e4-47a8b68c9874 devid 1 transid 9 /dev/sdc (8:32) scanned by mount (122609) BTRFS info (device sdc): first mount of filesystem d4d7f234-487c-4787-88e4-47a8b68c9874 BTRFS info (device sdc): using crc32c checksum algorithm BTRFS warning (device sdc): devid 2 uuid fbe72d72-3272-482d-80fb-ab88ed398192 is missing BTRFS warning (device sdc): devid 2 uuid fbe72d72-3272-482d-80fb-ab88ed398192 is missing BTRFS info (device sdc): allowing degraded mounts BTRFS info (device sdc): turning on async discard BTRFS info (device sdc): enabling free space tree Unable to handle kernel NULL pointer d...

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Publisher and database URLs for this record (shown for attribution; reading stays in Bugflare).

• https://git.kernel.org/stable/c/02c903fc6fc7e16c5d1f22d18784f1208acf43e3
• https://git.kernel.org/stable/c/1b1937eb08f51319bf71575484cde2b8c517aedc
• https://git.kernel.org/stable/c/210af872eafa0cf572a84cb303c0f9d2914c1226
• https://git.kernel.org/stable/c/3d8fa4b828a86b33c60858e58aaab6df273ede05
• https://git.kernel.org/stable/c/7a64521802997257b144e6edfb4e278dbeb972dd
• https://git.kernel.org/stable/c/9c894159c5b8adc84072e3af0e55b0473a69564e
• https://git.kernel.org/stable/c/b4af31b898a948e29861cb0bae734058f9a49d9b
• https://git.kernel.org/stable/c/f41ae7e6664f3c4361129728f2c4d5f3ed995251