CVE-2026-43379
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
ksmbd: fix use-after-free in smb_lazy_parent_lease_break_close()
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in smb_lazy_parent_lease_break_close() opinfo pointer obtained via rcu_dereference(fp->f_opinfo) is being accessed after rcu_read_unlock() has been called. This creates a race condition where the memory could be freed by a concurrent writer between the unlock and the subsequent pointer dereferences (opinfo->is_lease, etc.), leading to a use-after-free.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 27b40b7bfcd121fe13a150ffe11957630cf49246 | affected | git | bf4d66d72e4a9e268c1012c331ce9eaedb5e2086 | Unavailable | None listed |
| 5fb282ba4fef8985a5acf2b32681f2ec07732561 | affected | git | 960699317d39f46611f4ebeb69edc567c1f4e6b6 | Unavailable | None listed |
| 5fb282ba4fef8985a5acf2b32681f2ec07732561 | affected | git | dbbd328cf58261ca239756fe1c0d10c9518d3399 | Unavailable | None listed |
| 5fb282ba4fef8985a5acf2b32681f2ec07732561 | affected | git | b3568347c51c46e2cabc356bc34676df98296619 | Unavailable | None listed |
| 5fb282ba4fef8985a5acf2b32681f2ec07732561 | affected | git | eac3361e3d5dd8067b3258c69615888eb45e9f25 | Unavailable | None listed |
| 6.6.32 | affected | semver | 6.6.130 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 6.9 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.9 | Unavailable | None listed |
| 6.6.130 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.78 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.19 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 6.19.9 | unaffected | semver | Unavailable | 6.19.* | None listed |
| 7.0 | unaffected | original_commit_for_fix | Unavailable | * | None listed |