CVE-2021-47600

dm btree remove: fix use after free in rebalance_children()

State: Published
Severity: 7.8 High
Published: Jun 19, 2024
Updated: Aug 5, 2026
Reserved: May 24, 2024

Description

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

dm btree remove: fix use after free in rebalance_children()

Move dm_tm_unlock() after dm_tm_dec().

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	3241b1d3e0aaafbfcd320f4d71ade629728cc4f4 to before a48f6a2bf33734ec5669ee03067dfb6c5b4818d6Affected 3241b1d3e0aaafbfcd320f4d71ade629728cc4f4 to before 66ea642af6fd4eacb5d0271a922130fcf8700424Affected 3241b1d3e0aaafbfcd320f4d71ade629728cc4f4 to before b03abd0aa09c05099f537cb05b8460c4298f0861Affected 3241b1d3e0aaafbfcd320f4d71ade629728cc4f4 to before 293f957be5e39720778fb1851ced7f5fba6d51c3Affected 3241b1d3e0aaafbfcd320f4d71ade629728cc4f4 to before 501ecd90efdc9b2edc6c28852ecd098a4adf8f00Affected 3241b1d3e0aaafbfcd320f4d71ade629728cc4f4 to before 0e21e6cd5eebfc929ac5fa3b97ca2d4ace3cb6a3Affected 3241b1d3e0aaafbfcd320f4d71ade629728cc4f4 to before 607beb420b3fe23b948a9bf447d993521a02fbbbAffected 3241b1d3e0aaafbfcd320f4d71ade629728cc4f4 to before 1b8d2789dad0005fd5e7d35dab26a8e1203fb6daAffected
LinuxLinux	3.2Affected before 3.2Not affected 4.4.296 through 4.4.Not affected 4.9.294 through 4.9.Not affected 4.14.259 through 4.14.Not affected 4.19.222 through 4.19.Not affected 5.4.168 through 5.4.Not affected 5.10.88 through 5.10.Not affected 5.15.11 through 5.15.*Not affected 5.16 and laterNot affected

Product

Versions

LinuxLinux

3241b1d3e0aaafbfcd320f4d71ade629728cc4f4 to before a48f6a2bf33734ec5669ee03067dfb6c5b4818d6Affected
3241b1d3e0aaafbfcd320f4d71ade629728cc4f4 to before 66ea642af6fd4eacb5d0271a922130fcf8700424Affected
3241b1d3e0aaafbfcd320f4d71ade629728cc4f4 to before b03abd0aa09c05099f537cb05b8460c4298f0861Affected
3241b1d3e0aaafbfcd320f4d71ade629728cc4f4 to before 293f957be5e39720778fb1851ced7f5fba6d51c3Affected
3241b1d3e0aaafbfcd320f4d71ade629728cc4f4 to before 501ecd90efdc9b2edc6c28852ecd098a4adf8f00Affected
3241b1d3e0aaafbfcd320f4d71ade629728cc4f4 to before 0e21e6cd5eebfc929ac5fa3b97ca2d4ace3cb6a3Affected
3241b1d3e0aaafbfcd320f4d71ade629728cc4f4 to before 607beb420b3fe23b948a9bf447d993521a02fbbbAffected
3241b1d3e0aaafbfcd320f4d71ade629728cc4f4 to before 1b8d2789dad0005fd5e7d35dab26a8e1203fb6daAffected

LinuxLinux

3.2Affected
before 3.2Not affected
4.4.296 through 4.4.*Not affected
4.9.294 through 4.9.*Not affected
4.14.259 through 4.14.*Not affected
4.19.222 through 4.19.*Not affected
5.4.168 through 5.4.*Not affected
5.10.88 through 5.10.*Not affected
5.15.11 through 5.15.*Not affected
5.16 and laterNot affected

References

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