cbcvebase.
CVE-2024-50006
published 2024-10-21

CVE-2024-50006: 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…

PriorityP417medium4.7CVSS 3.1
AVLACHPRLUINSUCNINAH
EPSS
0.19%
8.9th percentile
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

36 ranges· showing 25
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.115-1 (bookworm)linux 6.1.115-1 (bookworm)
debianlinux-6.1< linux 6.1.115-1 (bookworm)linux 6.1.115-1 (bookworm)
linuxlinux
linuxlinux>= e8238f9a8339b3578c85e4192a7a23bc2bdc0333 < 4192adefc9c570698821c5eb9873320eac2fcbf14192adefc9c570698821c5eb9873320eac2fcbf1
linuxlinux>= e8238f9a8339b3578c85e4192a7a23bc2bdc0333 < 3c46d6060d3e38de22196c1fe7706c5a3c6962853c46d6060d3e38de22196c1fe7706c5a3c696285
linuxlinux>= e8238f9a8339b3578c85e4192a7a23bc2bdc0333 < 53b1999cfd2c7addf2e581a32865fe8835467b4453b1999cfd2c7addf2e581a32865fe8835467b44
linuxlinux>= e8238f9a8339b3578c85e4192a7a23bc2bdc0333 < ef05572da0c0eb89614ed01cc17d3c882bdbd1ffef05572da0c0eb89614ed01cc17d3c882bdbd1ff
linuxlinux>= e8238f9a8339b3578c85e4192a7a23bc2bdc0333 < 9fedf51ab8cf7b69bff08f37fe0989fec7f5d8709fedf51ab8cf7b69bff08f37fe0989fec7f5d870
linuxlinux>= e8238f9a8339b3578c85e4192a7a23bc2bdc0333 < d43776b907659affef1de888525847d64b244194d43776b907659affef1de888525847d64b244194
linuxlinux>= e8238f9a8339b3578c85e4192a7a23bc2bdc0333 < 6252cb6bde7fc76cb8dcb49d1def7c326b1908206252cb6bde7fc76cb8dcb49d1def7c326b190820
linuxlinux>= e8238f9a8339b3578c85e4192a7a23bc2bdc0333 < d58a00e981d3118b91d503da263e640b7cde6729d58a00e981d3118b91d503da263e640b7cde6729
linuxlinux>= e8238f9a8339b3578c85e4192a7a23bc2bdc0333 < cc749e61c011c255d81b192a822db650c68b313fcc749e61c011c255d81b192a822db650c68b313f
linuxlinux_kernel< 5.10.2275.10.227
linuxlinux_kernel>= 0 < 5.10.234-15.10.234-1
linuxlinux_kernel>= 0 < 6.1.115-16.1.115-1
linuxlinux_kernel>= 0 < 6.11.4-16.11.4-1
linuxlinux_kernel>= 0 < 6.11.4-16.11.4-1
linuxlinux_kernel>= 0 < 5.4.0-208.2285.4.0-208.228
linuxlinux_kernel>= 0 < 5.15.0-127.1375.15.0-127.137
linuxlinux_kernel>= 0 < 6.8.0-54.566.8.0-54.56
linuxlinux_kernel>= 0 < 6.11.0-18.186.11.0-18.18
linuxlinux_kernel>= 0 < 4.4.0-274.3084.4.0-274.308
linuxlinux_kernel>= 0 < 4.15.0-243.2554.15.0-243.255
linuxlinux_kernel>= 5.11 < 5.15.1685.15.168
linuxlinux_kernel>= 5.16 < 6.1.1136.1.113

CVSS provenance

nvdv3.14.7MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_redhat5.5MEDIUM
vendor_debian4.7MEDIUM
vendor_msrc4.7MEDIUM
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