CVE-2026-53010
ksmbd: fix use-after-free in smb2_open during durable reconnect
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in smb2_open during durable reconnect In smb2_open, the call to ksmbd_put_durable_fd(fp) drops the reference to the durable file descriptor early during the durable reconnect process. If an error occurs subsequently (eg, ksmbd_iov_pin_rsp fails) or a scavenger accesses the file, it leads to a use-after-free when accessing fp properties (eg fp->create_time). Move the single put to the end of the function below err_out2 so fp stays valid until smb2_open returns.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Jun 24, 2026 |
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Affected Versions
Linux / Linux
c8efcc786146a951091588e5fa7e3c754850cb3c < ce2e164c1c51c3f7813b80f8c926836e896bcbb3 c8efcc786146a951091588e5fa7e3c754850cb3c < 97a0cd55283b4e63fd92804da91c8d9896adcad9 c8efcc786146a951091588e5fa7e3c754850cb3c < 1baff47b81f94f9231c91236aa511420d0e266b9 8df4bcdb0a4232192b2445256c39b787d58ef14d 6.6.32 < 6.7
Linux / Linux
6.9