cbcvebase.
CVE-2024-47669
published 2024-10-09

CVE-2024-47669: In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix state management in error path of log writing function After commit…

PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.21%
11.9th percentile
In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix state management in error path of log writing function After commit a694291a6211 ("nilfs2: separate wait function from nilfs_segctor_write") was applied, the log writing function nilfs_segctor_do_construct() was able to issue I/O requests continuously even if user data blocks were split into multiple logs across segments, but two potential flaws were introduced in its error handling. First, if nilfs_segctor_begin_construction() fails while creating the second or subsequent logs, the log writing function returns without calling nilfs_segctor_abort_construction(), so the writeback flag set on pages/folios will remain uncleared. This causes page cache operations to hang waiting for the writeback flag. For example, truncate_inode_pages_final(), which is called via nilfs_evict_inode() when an inode is evicted from memory, will hang. Second, the NILFS_I_COLLECTED flag set on normal inodes remain uncleared. As a result, if the next log write involves checkpoint creation, that's fine, but if a partial log write is performed that does not, inodes with NILFS_I_COLLECTED set are erroneously removed from the "sc_dirty_files" list, and their data and b-tree blocks may not be written to the device, corrupting the block mapping. Fix these issues by uniformly calling nilfs_segctor_abort_construction() on failure of each step in the loop in nilfs_segctor_do_construct(), having it clean up logs and segment usages according to progress, and correcting the conditions for calling nilfs_redirty_inodes() to ensure that the NILFS_I_COLLECTED flag is cleared.

Affected

30 ranges· showing 25
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.112-1 (bookworm)linux 6.1.112-1 (bookworm)
debianlinux-6.1< linux 6.1.112-1 (bookworm)linux 6.1.112-1 (bookworm)
linuxlinux
linuxlinux>= a694291a6211537189c6080f77f63cdabfc9b63e < 40a2757de2c376ef8a08d9ee9c81e77f3c750adf40a2757de2c376ef8a08d9ee9c81e77f3c750adf
linuxlinux>= a694291a6211537189c6080f77f63cdabfc9b63e < 036441e8438b29111fa75008f0ce305fb4e83c0a036441e8438b29111fa75008f0ce305fb4e83c0a
linuxlinux>= a694291a6211537189c6080f77f63cdabfc9b63e < efdde00d4a1ef10bb71e09ebc67823a3d3ad725befdde00d4a1ef10bb71e09ebc67823a3d3ad725b
linuxlinux>= a694291a6211537189c6080f77f63cdabfc9b63e < 3e349d7191f0688fc9808ef24fd4e4b4ef5ca8763e349d7191f0688fc9808ef24fd4e4b4ef5ca876
linuxlinux>= a694291a6211537189c6080f77f63cdabfc9b63e < 30562eff4a6dd35c4b5be9699ef61ad9f5f20a0630562eff4a6dd35c4b5be9699ef61ad9f5f20a06
linuxlinux>= a694291a6211537189c6080f77f63cdabfc9b63e < 0a1a961bde4351dc047ffdeb2f1311ca16a700cc0a1a961bde4351dc047ffdeb2f1311ca16a700cc
linuxlinux>= a694291a6211537189c6080f77f63cdabfc9b63e < 74866c16ea2183f52925fa5d76061a1fe7f7737b74866c16ea2183f52925fa5d76061a1fe7f7737b
linuxlinux>= a694291a6211537189c6080f77f63cdabfc9b63e < 6576dd6695f2afca3f4954029ac4a64f82ba60ab6576dd6695f2afca3f4954029ac4a64f82ba60ab
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel>= 0 < 6.1.112-16.1.112-1
linuxlinux_kernel>= 0 < 6.10.11-16.10.11-1
linuxlinux_kernel>= 0 < 6.10.11-16.10.11-1
linuxlinux_kernel>= 0 < 5.4.0-200.2205.4.0-200.220
linuxlinux_kernel>= 0 < 5.15.0-125.1355.15.0-125.135
linuxlinux_kernel>= 0 < 6.8.0-50.516.8.0-50.51
linuxlinux_kernel>= 2.6.33 < 4.19.3224.19.322
linuxlinux_kernel>= 4.20 < 5.4.2845.4.284

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_redhat5.5MEDIUM
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