btrfs: detach failed sprout device from transaction update list

Summary

In the Linux kernel, the following vulnerability has been resolved: btrfs: detach failed sprout device from transaction update list When creating the first metadata chunk for a sprout filesystem, create_chunk() adds the new device to the transaction dev_update_list through device->post_commit_list. If the subsequent system chunk creation fails, btrfs_init_new_device() aborts the transaction and releases the device while post_commit_list is still linked. This triggers a warning in btrfs_free_device() and leaves the transaction list referencing freed memory. Detach the device while holding chunk_mutex before releasing it.

Timeline

1. Sep 25, 2026, 10:24 AM UTCCVE published
2. Oct 19, 2026, 9:13 AM UTCRecord last updated

Affected versions

• Linux Linux

  From bbbf7243d62d8be73b7ef60721c127b36b2d523e · fixed in 2a57fb1d5ce8f316b81bbb60e6df245ebc816ffc; From bbbf7243d62d8be73b7ef60721c127b36b2d523e · fixed in 86eff3052054e8f3b059b2d5845b6dcca021f20c; From bbbf7243d62d8be73b7ef60721c127b36b2d523e · fixed in 63bfa52eb3289517aa82cb90e1189385873aae21; From bbbf7243d62d8be73b7ef60721c127b36b2d523e · fixed in 7fe9dfbca43464baa8f050447a4837587b18adec; From bbbf7243d62d8be73b7ef60721c127b36b2d523e · fixed in e9e7e37afa85db770e6084360b21a21a8b3a583f; From bbbf7243d62d8be73b7ef60721c127b36b2d523e · fixed in 8b001df2b37ca022f710f3254fbb0bcd6d9e1bed; From bbbf7243d62d8be73b7ef60721c127b36b2d523e · fixed in 0ea6814bc0ff7cff443241bd34db9f0f828f3190; From bbbf7243d62d8be73b7ef60721c127b36b2d523e · fixed in c93b3c43df561cd9f592cee20ae058b563f9e5b6

• Linux Linux

  5.2

• KernelLinux

  From 5.2.0 · fixed in 5.10.271; From 5.11.0 · fixed in 5.15.222; From 5.16.0 · fixed in 6.1.189; From 6.2.0 · fixed in 6.6.158; From 6.7.0 · fixed in 6.12.111; From 6.13.0 · fixed in 6.18.53; From 6.19.0 · fixed in 7.2.7

References 8