Overview
About vulnerability
In the Linux kernel, the following vulnerability has been resolved:
smb: client: fix double-free in SMB2_close() replay
A response-bearing attempt can return a replayable error and free its response buffer. If SMB2_close_init() fails before the next send, cleanup retains the previous buffer type and frees that response again.
Reset response bookkeeping before each attempt to prevent the stale free.
Details
- Affected product:
- AlmaLinux 9.2 ESU , Debian 10 ELS , TuxCare 9.6 ESU , TuxCare 9.8 ESU
- Affected packages:
- linux @ 4.19.0 (+3 more)
Fixes
KernelCare state
Live-patch status from KernelCare for each operating system.
| Operating system | Status | Covered kernels |
|---|---|---|
| AlmaLinux 10 | Released |
63 kernels
|
| AlmaLinux 9 | Released |
97 kernels
|
| AlmaLinux 9.6 ESU | In Rollout |
20 kernels
|
| Debian 13 | Released |
12 kernels
|
| Oracle Linux 10 | Released |
49 kernels
|
| Oracle Linux 9 | Released |
90 kernels
|
| RHEL 10 | Released |
63 kernels
|
| RHEL 9 | Released |
95 kernels
|
| Rocky Linux 10 | Released |
46 kernels
|
| Rocky Linux 9 | Released |
72 kernels
|
| Ubuntu 24.04 | Planned | — |
| Ubuntu 24.04 AWS | Planned | — |
| Ubuntu 26.04 | Will Not Fix | — |