CVE-2021-47340

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Source
https://nvd.nist.gov/vuln/detail/CVE-2021-47340
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-47340.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2021-47340
Downstream
Related
Published
2024-05-21T15:15:20Z
Modified
2025-08-09T20:01:27Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

In the Linux kernel, the following vulnerability has been resolved:

jfs: fix GPF in diFree

Avoid passing inode with JFSSBI(inode->isb)->ipimap == NULL to diFree()[1]. GFP will appear:

struct inode *ipimap = JFS_SBI(ip->i_sb)->ipimap;
struct inomap *imap = JFS_IP(ipimap)->i_imap;

JFS_IP() will return invalid pointer when ipimap == NULL

Call Trace: diFree+0x13d/0x2dc0 fs/jfs/jfsimap.c:853 [1] jfsevictinode+0x2c9/0x370 fs/jfs/inode.c:154 evict+0x2ed/0x750 fs/inode.c:578 iputfinal fs/inode.c:1654 [inline] iput.part.0+0x3fe/0x820 fs/inode.c:1680 iput+0x58/0x70 fs/inode.c:1670

References

Affected packages