{"schema_version":"1.9.0","id":"CVE-2023-53339","published":"2025-09-17T14:56:33.114Z","modified":"2026-08-12T03:51:23.616958540Z","related":["SUSE-SU-2025:03600-1","SUSE-SU-2025:03634-1","SUSE-SU-2025:20851-1","SUSE-SU-2025:20861-1","SUSE-SU-2025:20870-1","SUSE-SU-2025:20898-1","SUSE-SU-2025:3751-1","SUSE-SU-2025:4057-1","SUSE-SU-2025:4132-1","SUSE-SU-2025:4141-1","SUSE-SU-2025:4189-1"],"summary":"btrfs: fix BUG_ON condition in btrfs_cancel_balance","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix BUG_ON condition in btrfs_cancel_balance\n\nPausing and canceling balance can race to interrupt balance lead to BUG_ON\npanic in btrfs_cancel_balance. The BUG_ON condition in btrfs_cancel_balance\ndoes not take this race scenario into account.\n\nHowever, the race condition has no other side effects. We can fix that.\n\nReproducing it with panic trace like this:\n\n  kernel BUG at fs/btrfs/volumes.c:4618!\n  RIP: 0010:btrfs_cancel_balance+0x5cf/0x6a0\n  Call Trace:\n   <TASK>\n   ? do_nanosleep+0x60/0x120\n   ? hrtimer_nanosleep+0xb7/0x1a0\n   ? sched_core_clone_cookie+0x70/0x70\n   btrfs_ioctl_balance_ctl+0x55/0x70\n   btrfs_ioctl+0xa46/0xd20\n   __x64_sys_ioctl+0x7d/0xa0\n   do_syscall_64+0x38/0x80\n   entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\n  Race scenario as follows:\n  > mutex_unlock(&fs_info->balance_mutex);\n  > --------------------\n  > .......issue pause and cancel req in another thread\n  > --------------------\n  > ret = __btrfs_balance(fs_info);\n  >\n  > mutex_lock(&fs_info->balance_mutex);\n  > if (ret == -ECANCELED && atomic_read(&fs_info->balance_pause_req)) {\n  >         btrfs_info(fs_info, \"balance: paused\");\n  >         btrfs_exclop_balance(fs_info, BTRFS_EXCLOP_BALANCE_PAUSED);\n  > }","affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"ddf7e8984c83aee9122552529f4e77291903f8d9"},{"fixed":"ceb9ba8e30833a4823e2dc73f80ebcdf2498d01a"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"72efe5d44821e38540888a5fe3ff3d0faab6acad"},{"fixed":"ae81329f7de3aa6f34ecdfa5412e72161a30e9ce"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"b19c98f237cd76981aaded52c258ce93f7daa8cb"},{"fixed":"29eefa6d0d07e185f7bfe9576f91e6dba98189c2"}]}],"versions":["v6.1.46","v6.1.45","v6.1.44","v6.1.43","v6.1.42","v6.4.11","v6.4.10","v6.4.9","v6.4.8","v6.4.7"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53339.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.1.42"},{"fixed":"6.1.47"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.4.7"},{"fixed":"6.4.12"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53339.json"}}],"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/29eefa6d0d07e185f7bfe9576f91e6dba98189c2"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ae81329f7de3aa6f34ecdfa5412e72161a30e9ce"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ceb9ba8e30833a4823e2dc73f80ebcdf2498d01a"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53339.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-53339"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53339.json"}}