CVE-2025-38659
Published: Aug 22, 2025
Modified: Jun 1, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: gfs2: No more self recovery When a node withdraws and it turns out that it is the only node that has the filesystem mounted, gfs2 currently tries to replay the local journal to bring the filesystem back into a consistent state. Not only is that a very bad idea, it has also never worked because gfs2_recover_func() will refuse to do anything during a withdraw. However, before even getting to this point, gfs2_recover_func() dereferences sdp->sd_jdesc->jd_inode. This was a use-after-free before commit 04133b607a78 ("gfs2: Prevent double iput for journal on error") and is a NULL pointer dereference since then. Simply get rid of self recovery to fix that.
| Vendor | Product | Versions |
|---|---|---|
Linux | Linux | affected 601ef0d52e9617588fcff3df26953592f2eb44ac - < 69cf5699a402ee7ae1be53954dc2ae652c0a053caffected 601ef0d52e9617588fcff3df26953592f2eb44ac - < 6ebe17b359bead383581f729e43f591c1c36e159affected 601ef0d52e9617588fcff3df26953592f2eb44ac - < 1a91ba12abef628b43cada87478328274d988e88affected 601ef0d52e9617588fcff3df26953592f2eb44ac - < f5426ffbec971a8f7346a57392d3a901bdee5a9baffected 601ef0d52e9617588fcff3df26953592f2eb44ac - < 6784367b2f3cd7b89103de35764f37f152590dbd+2 more versions |
Linux | Linux | affected 5.7unaffected 0 - < 5.7unaffected 5.15.209 - <= 5.15.*unaffected 6.1.167 - <= 6.1.*unaffected 6.6.102 - <= 6.6.*+4 more versions |
References
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