cbcvebase.
CVE-2024-49957
published 2024-10-21

CVE-2024-49957: In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix null-ptr-deref when journal load failed. During the mounting process, if…

PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.25%
16.4th percentile
In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix null-ptr-deref when journal load failed. During the mounting process, if journal_reset() fails because of too short journal, then lead to jbd2_journal_load() fails with NULL j_sb_buffer. Subsequently, ocfs2_journal_shutdown() calls jbd2_journal_flush()->jbd2_cleanup_journal_tail()-> __jbd2_update_log_tail()->jbd2_journal_update_sb_log_tail() ->lock_buffer(journal->j_sb_buffer), resulting in a null-pointer dereference error. To resolve this issue, we should check the JBD2_LOADED flag to ensure the journal was properly loaded. Additionally, use journal instead of osb->journal directly to simplify the code.

Affected

34 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>= f6f50e28f0cb8d7bcdfaacc83129f005dede11b1 < fd89d92c1140cee8f59de336cb37fa65e359c123fd89d92c1140cee8f59de336cb37fa65e359c123
linuxlinux>= f6f50e28f0cb8d7bcdfaacc83129f005dede11b1 < 703b2c7e0798d263154dc8593dc2345f75dc077f703b2c7e0798d263154dc8593dc2345f75dc077f
linuxlinux>= f6f50e28f0cb8d7bcdfaacc83129f005dede11b1 < bf605ae98dab5c15c5b631d4d7f88898cb41b649bf605ae98dab5c15c5b631d4d7f88898cb41b649
linuxlinux>= f6f50e28f0cb8d7bcdfaacc83129f005dede11b1 < ff55291fb36779819211b596da703389135f5b05ff55291fb36779819211b596da703389135f5b05
linuxlinux>= f6f50e28f0cb8d7bcdfaacc83129f005dede11b1 < 82dfdd1e31e774578f76ce6dc90c834f96403a0f82dfdd1e31e774578f76ce6dc90c834f96403a0f
linuxlinux>= f6f50e28f0cb8d7bcdfaacc83129f005dede11b1 < 86a89e75e9e4dfa768b97db466ad6bedf2e7ea5b86a89e75e9e4dfa768b97db466ad6bedf2e7ea5b
linuxlinux>= f6f50e28f0cb8d7bcdfaacc83129f005dede11b1 < f60e94a83db799bde625ac8671a5b4a6354e7120f60e94a83db799bde625ac8671a5b4a6354e7120
linuxlinux>= f6f50e28f0cb8d7bcdfaacc83129f005dede11b1 < 387bf565cc03e2e8c720b8b4798efea4aacb6962387bf565cc03e2e8c720b8b4798efea4aacb6962
linuxlinux>= f6f50e28f0cb8d7bcdfaacc83129f005dede11b1 < 5784d9fcfd43bd853654bb80c87ef293b9e8e80a5784d9fcfd43bd853654bb80c87ef293b9e8e80a
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>= 2.6.32 < 5.10.2275.10.227
linuxlinux_kernel>= 5.11 < 5.15.1685.15.168
linuxlinux_kernel>= 5.16 < 6.1.1136.1.113
linuxlinux_kernel>= 6.11 < 6.11.36.11.3
linuxlinux_kernel>= 6.2 < 6.6.556.6.55

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
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