Answer in brief
CVE-2026-53010 records a Critical severity (CVSS 9.8) vulnerability in ksmbd: fix use-after-free in smb2_open during durable reconnect. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=c8efcc786146a951091588e5fa7e3c754850cb3c <ce2e164c1c51c3f7813b80f8c926836e896bcbb3 || >=c8efcc786146a951091588e5fa7e3c754850cb3c <97a0cd55283b4e63fd92804da91c8d9896adcad9 || >=c8efcc786146a951091588e5fa7e3c754850cb3c <1baff47b81f94f9231c91236aa511420d0e266b9 || 8df4bcdb0a4232192b2445256c39b787d58ef14d || >=6.6.32 <6.7 | ce2e164c1c51c3f7813b80f8c926836e896bcbb3, 97a0cd55283b4e63fd92804da91c8d9896adcad9, 1baff47b81f94f9231c91236aa511420d0e266b9, 6.7 |
| Linux/Linuxgeneric | 6.9 | Not reported |
Published upstream
Jun 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 24, 2026
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.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-53010 records a Critical severity (CVSS 9.8) vulnerability in ksmbd: fix use-after-free in smb2_open during durable reconnect. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=c8efcc786146a951091588e5fa7e3c754850cb3c <ce2e164c1c51c3f7813b80f8c926836e896bcbb3 || >=c8efcc786146a951091588e5fa7e3c754850cb3c <97a0cd55283b4e63fd92804da91c8d9896adcad9 || >=c8efcc786146a951091588e5fa7e3c754850cb3c <1baff47b81f94f9231c91236aa511420d0e266b9 || 8df4bcdb0a4232192b2445256c39b787d58ef14d || >=6.6.32 <6.7 | ce2e164c1c51c3f7813b80f8c926836e896bcbb3, 97a0cd55283b4e63fd92804da91c8d9896adcad9, 1baff47b81f94f9231c91236aa511420d0e266b9, 6.7 |
| Linux/Linuxgeneric | 6.9 | Not reported |
Published upstream
Jun 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 24, 2026
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.
Quoted source text, attributed separately from HOL analysis.