CVE-2026-31609
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved:
smb: client: avoid double-free in smbd_free_send_io() after smbd_send_batch_flush()
smbd_send_batch_flush() already calls smbd_free_send_io(), so we should not call it again after smbd_post_send() moved it to the batch list.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | cca0526ef2344cab6944d7f441fc24e152da031b < a9940dcbe5cb92482c04efc7341039ddf7dbf607 | affected |
| Linux | Linux | 37b5c06956183b65e6808b509cf637632016cdf7 < 22b7c1c619d808aec4cad3dc42103345e370d107 | affected |
| Linux | Linux | 21538121efe6c8c5b51c742fa02cbe820bc48714 < f9a162c2bbcd0ac85bd07c5b37cf20286048b65c | affected |
| Linux | Linux | 21538121efe6c8c5b51c742fa02cbe820bc48714 < 27b7c3e916218b5eb2ee350211140e961bfc49be | affected |
| Linux | Linux | 6.18.11 < 6.18.24 | affected |
| Linux | Linux | 6.19.1 < 6.19.14 | affected |
| Linux | Linux | 7.0 | affected |
| Linux | Linux | 0 < 7.0 | unaffected |
| Linux | Linux | 6.18.24 <= 6.18.* | unaffected |
| Linux | Linux | 6.19.14 <= 6.19.* | unaffected |
| Linux | Linux | 7.0.1 <= 7.0.* | unaffected |
| Linux | Linux | 7.1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/a9940dcbe5cb92482c04efc7341039ddf7dbf607
- https://git.kernel.org/stable/c/22b7c1c619d808aec4cad3dc42103345e370d107
- https://git.kernel.org/stable/c/f9a162c2bbcd0ac85bd07c5b37cf20286048b65c
- https://git.kernel.org/stable/c/27b7c3e916218b5eb2ee350211140e961bfc49be
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