Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: ext4: fix i_data_sem unlock order in ext4_ind_migrate() Fuzzing reports a possible deadlock in jbd2_log_wait_commit. This issue is triggered when an EXT4_IOC_MIGRATE ioctl is set to require synchronous updates because the file descriptor is opened with O_SYNC. This can lead to the jbd2_journal_stop() function calling jbd2_might_wait_for_commit(), potentially causing a deadlock if the EXT4_IOC_MIGRATE call races with a write(2) system call. This problem only arises when CONFIG_PROVE_LOCKING is enabled. In this case, the jbd2_might_wait_for_commit macro locks jbd2_handle in the jbd2_journal_stop function while i_data_sem is locked. This triggers lockdep because the jbd2_journal_start function might also lock the same jbd2_handle simultaneously. Found by Linux Verification Center (linuxtesting.org) with syzkaller. Rule: add
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected e8238f9a8339b3578c85e4192a7a23bc2bdc0333 before 4192adefc9c570698821c5eb9873320eac2fcbf1; affected e8238f9a8339b3578c85e4192a7a23bc2bdc0333 before 3c46d6060d3e38de22196c1fe7706c5a3c696285; affected e8238f9a8339b3578c85e4192a7a23bc2bdc0333 before 53b1999cfd2c7addf2e581a32865fe8835467b44; affected e8238f9a8339b3578c85e4192a7a23bc2bdc0333 before ef05572da0c0eb89614ed01cc17d3c882bdbd1ff; affected e8238f9a8339b3578c85e4192a7a23bc2bdc0333 before 9fedf51ab8cf7b69bff08f37fe0989fec7f5d870; affected e8238f9a8339b3578c85e4192a7a23bc2bdc0333 before d43776b907659affef1de888525847d64b244194; affected e8238f9a8339b3578c85e4192a7a23bc2bdc0333 before 6252cb6bde7fc76cb8dcb49d1def7c326b190820; affected e8238f9a8339b3578c85e4192a7a23bc2bdc0333 before d58a00e981d3118b91d503da263e640b7cde6729; affected e8238f9a8339b3578c85e4192a7a23bc2bdc0333 before cc749e61c011c255d81b192a822db650c68b313f |
| Linux / Linux | affected 3.10; unaffected 0 before 3.10; unaffected 4.19.323 through 4.19.*; unaffected 5.4.285 through 5.4.*; unaffected 5.10.227 through 5.10.*; unaffected 5.15.168 through 5.15.*; unaffected 6.1.113 through 6.1.*; unaffected 6.6.55 through 6.6.*; unaffected 6.10.14 through 6.10.*; unaffected 6.11.3 through 6.11.*; unaffected 6.12 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/4192adefc9c570698821c5eb9873320eac2fcbf1
- https://git.kernel.org/stable/c/3c46d6060d3e38de22196c1fe7706c5a3c696285
- https://git.kernel.org/stable/c/53b1999cfd2c7addf2e581a32865fe8835467b44
- https://git.kernel.org/stable/c/ef05572da0c0eb89614ed01cc17d3c882bdbd1ff
- https://git.kernel.org/stable/c/9fedf51ab8cf7b69bff08f37fe0989fec7f5d870
- https://git.kernel.org/stable/c/d43776b907659affef1de888525847d64b244194
- https://git.kernel.org/stable/c/6252cb6bde7fc76cb8dcb49d1def7c326b190820
- https://git.kernel.org/stable/c/d58a00e981d3118b91d503da263e640b7cde6729
- https://git.kernel.org/stable/c/cc749e61c011c255d81b192a822db650c68b313f
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.
No English description supplied.