CVE-2023-54311
N/A
N/A
Summary
In the Linux kernel, the following vulnerability has been resolved:
ext4: fix deadlock when converting an inline directory in nojournal mode
In no journal mode, ext4_finish_convert_inline_dir() can self-deadlock by calling ext4_handle_dirty_dirblock() when it already has taken the directory lock. There is a similar self-deadlock in ext4_incvert_inline_data_nolock() for data files which we'll fix at the same time.
A simple reproducer demonstrating the problem:
mke2fs -Fq -t ext2 -O inline_data -b 4k /dev/vdc 64
mount -t ext4 -o dirsync /dev/vdc /vdc
cd /vdc
mkdir file0
cd file0
touch file0
touch file1
attr -s BurnSpaceInEA -V abcde .
touch supercalifragilisticexpialidocious
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 3c47d54170b6a678875566b1b8d6dcf57904e49b < b4fa4768c9acff77245d672d855d2c88294850b1 | affected |
| Linux | Linux | 3c47d54170b6a678875566b1b8d6dcf57904e49b < 5f8b55136ad787aed2c184f7cb3e93772ae637a3 | affected |
| Linux | Linux | 3c47d54170b6a678875566b1b8d6dcf57904e49b < 640c8c365999c6f23447ac766437236ad88317c5 | affected |
| Linux | Linux | 3c47d54170b6a678875566b1b8d6dcf57904e49b < 665cc3ba50330049524c1d275bc840a8f28dde73 | affected |
| Linux | Linux | 3c47d54170b6a678875566b1b8d6dcf57904e49b < 0b1c4357bb21d9770451a1bdb8d419ea10bada88 | affected |
| Linux | Linux | 3c47d54170b6a678875566b1b8d6dcf57904e49b < 804de0c72cd473e186ca4e1f6287d45431b14e5a | affected |
| Linux | Linux | 3c47d54170b6a678875566b1b8d6dcf57904e49b < f4ce24f54d9cca4f09a395f3eecce20d6bec4663 | affected |
| Linux | Linux | 3.8 | affected |
| Linux | Linux | 0 < 3.8 | unaffected |
| Linux | Linux | 5.4.243 <= 5.4.* | unaffected |
| Linux | Linux | 5.10.180 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.112 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.29 <= 6.1.* | unaffected |
| Linux | Linux | 6.2.16 <= 6.2.* | unaffected |
| Linux | Linux | 6.3.3 <= 6.3.* | unaffected |
| Linux | Linux | 6.4 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/b4fa4768c9acff77245d672d855d2c88294850b1
- https://git.kernel.org/stable/c/5f8b55136ad787aed2c184f7cb3e93772ae637a3
- https://git.kernel.org/stable/c/640c8c365999c6f23447ac766437236ad88317c5
- https://git.kernel.org/stable/c/665cc3ba50330049524c1d275bc840a8f28dde73
- https://git.kernel.org/stable/c/0b1c4357bb21d9770451a1bdb8d419ea10bada88
- https://git.kernel.org/stable/c/804de0c72cd473e186ca4e1f6287d45431b14e5a
- https://git.kernel.org/stable/c/f4ce24f54d9cca4f09a395f3eecce20d6bec4663
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