CVE-2023-53089None▾ SunlitIn the Linux kernel, the following vulnerability has been resolved: ext4: fix task hung in ext4_xattr_delete_inode Syzbot reported a hung task problem: ================================================================== INFO: task syz-e…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Nov 5.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
In the Linux kernel, the following vulnerability has been resolved:
ext4: fix task hung in ext4_xattr_delete_inode
The problem is that the inode contains an xattr entry with ea_inum of 15 when cleaning up an orphan inode <15>. When evict inode <15>, the reference counting of the corresponding EA inode is decreased. When EA inode <15> is found by find_inode_fast() in __ext4_iget(), it is found that the EA inode holds the I_FREEING flag and waits for the EA inode to complete deletion. As a result, when inode <15> is being deleted, we wait for inode <15> to complete the deletion, resulting in an infinite loop and triggering Hung Task. To solve this problem, we only need to check whether the ino of EA inode and parent is the same before getting EA inode.
Linux >= e50e5129f384ae282adebfb561189cdb19b81cee < efddc7e106fdf8d1f62d45e79de78f63b7c04fbaLinux >= e50e5129f384ae282adebfb561189cdb19b81cee < 64b72f5e7574020dea62ab733d88a54d903c42a1Linux >= e50e5129f384ae282adebfb561189cdb19b81cee < 2c96c52aeaa6fd9163cfacdd98778b4a0398ef18Linux >= e50e5129f384ae282adebfb561189cdb19b81cee < a98160d8f3e6242ca9b7f443f26e7ef3a61ba684Linux >= e50e5129f384ae282adebfb561189cdb19b81cee < 1aec41c98cce61d19ce89650895e51b9f3cdef13Linux >= e50e5129f384ae282adebfb561189cdb19b81cee < 94fd091576b12540924f6316ebc0678e84cb2800Linux >= e50e5129f384ae282adebfb561189cdb19b81cee < 73f7987fe1b82596f1a380e85cd0097ebaae7e01Linux >= e50e5129f384ae282adebfb561189cdb19b81cee < 0f7bfd6f8164be32dbbdf36aa1e5d00485c53cd7Linux 4.13Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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