{"id":"CVE-2024-49959","summary":"jbd2: stop waiting for space when jbd2_cleanup_journal_tail() returns error","details":"In the Linux kernel, the following vulnerability has been resolved:\n\njbd2: stop waiting for space when jbd2_cleanup_journal_tail() returns error\n\nIn __jbd2_log_wait_for_space(), we might call jbd2_cleanup_journal_tail()\nto recover some journal space. But if an error occurs while executing\njbd2_cleanup_journal_tail() (e.g., an EIO), we don't stop waiting for free\nspace right away, we try other branches, and if j_committing_transaction\nis NULL (i.e., the tid is 0), we will get the following complain:\n\n============================================\nJBD2: I/O error when updating journal superblock for sdd-8.\n__jbd2_log_wait_for_space: needed 256 blocks and only had 217 space available\n__jbd2_log_wait_for_space: no way to get more journal space in sdd-8\n------------[ cut here ]------------\nWARNING: CPU: 2 PID: 139804 at fs/jbd2/checkpoint.c:109 __jbd2_log_wait_for_space+0x251/0x2e0\nModules linked in:\nCPU: 2 PID: 139804 Comm: kworker/u8:3 Not tainted 6.6.0+ #1\nRIP: 0010:__jbd2_log_wait_for_space+0x251/0x2e0\nCall Trace:\n \u003cTASK\u003e\n add_transaction_credits+0x5d1/0x5e0\n start_this_handle+0x1ef/0x6a0\n jbd2__journal_start+0x18b/0x340\n ext4_dirty_inode+0x5d/0xb0\n __mark_inode_dirty+0xe4/0x5d0\n generic_update_time+0x60/0x70\n[...]\n============================================\n\nSo only if jbd2_cleanup_journal_tail() returns 1, i.e., there is nothing to\nclean up at the moment, continue to try to reclaim free space in other ways.\n\nNote that this fix relies on commit 6f6a6fda2945 (\"jbd2: fix ocfs2 corrupt\nwhen updating journal superblock fails\") to make jbd2_cleanup_journal_tail\nreturn the correct error code.","modified":"2026-04-02T12:21:11.183854Z","published":"2024-10-21T18:02:12.355Z","related":["MGASA-2024-0344","MGASA-2024-0345","SUSE-SU-2024:3983-1","SUSE-SU-2024:3984-1","SUSE-SU-2024:3985-1","SUSE-SU-2024:4100-1","SUSE-SU-2024:4314-1","SUSE-SU-2024:4318-1","SUSE-SU-2024:4364-1","SUSE-SU-2024:4387-1","SUSE-SU-2025:0034-1","SUSE-SU-2025:20163-1","SUSE-SU-2025:20164-1","SUSE-SU-2025:20246-1","SUSE-SU-2025:20247-1","USN-7276-1","USN-7277-1","openSUSE-SU-2024:14500-1","openSUSE-SU-2025:14705-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/49xxx/CVE-2024-49959.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1c62dc0d82c62f0dc8fcdc4843208e522acccaf5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3ced0fe6c0eff032733ea8b38778b34707270138"},{"type":"WEB","url":"https://git.kernel.org/stable/c/481e8f18a290e39e04ddb7feb2bb2a2cc3b213ed"},{"type":"WEB","url":"https://git.kernel.org/stable/c/70bae48377a2c4296fd3caf4caf8f11079111019"},{"type":"WEB","url":"https://git.kernel.org/stable/c/801a35dfef6996f3d5eaa96a59caf00440d9165e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c6bf043b210eac67d35a114e345c4e5585672913"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d5dc65370a746750dbb2f03eabcf86b18db65f32"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ec7f8337c98ad281020ad1f11ba492462d80737a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f5cacdc6f2bb2a9bf214469dd7112b43dd2dd68a"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/49xxx/CVE-2024-49959.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-49959"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"8c3f25d8950c3e9fe6c9849f88679b3f2a071550"},{"fixed":"801a35dfef6996f3d5eaa96a59caf00440d9165e"},{"fixed":"d5dc65370a746750dbb2f03eabcf86b18db65f32"},{"fixed":"481e8f18a290e39e04ddb7feb2bb2a2cc3b213ed"},{"fixed":"ec7f8337c98ad281020ad1f11ba492462d80737a"},{"fixed":"70bae48377a2c4296fd3caf4caf8f11079111019"},{"fixed":"1c62dc0d82c62f0dc8fcdc4843208e522acccaf5"},{"fixed":"3ced0fe6c0eff032733ea8b38778b34707270138"},{"fixed":"c6bf043b210eac67d35a114e345c4e5585672913"},{"fixed":"f5cacdc6f2bb2a9bf214469dd7112b43dd2dd68a"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-49959.json"}}],"schema_version":"1.7.5"}