
CVE catalog
CVE-2026-43410
In the Linux kernel, the following vulnerability has been resolved: firmware: stratix10-rsu: Fix NULL pointer dereference when RSU is disabled When the Remote System Update (RSU) isn't enabled in th
- Severity
- Medium · CVSS 5.5
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.12% · Oct 25, 2026
In the Linux kernel, the following vulnerability has been resolved: firmware: stratix10-rsu: Fix NULL pointer dereference when RSU is disabled When the Remote System Update (RSU) isn't enabled in the First Stage Boot Loader (FSBL), the driver encounters a NULL pointer dereference when excute svc_normal_to_secure_thread() thread, resulting in a kernel panic: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008 Mem abort info: ... Data abort info: ... [0000000000000008] user address but active_mm is swapper Internal error: Oops: 0000000096000004 [#1] SMP Modules linked in: CPU: 0 UID: 0 PID: 79 Comm: svc_smc_hvc_thr Not tainted 6.19.0-rc8-yocto-standard+ #59 PREEMPT Hardware name: SoCFPGA Stratix 10 SoCDK (DT) pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : svc_normal_to_secure_thread+0x38c/0x990 lr : svc_normal_to_secure_thread+0x144/0x990 ... Call trace: svc_normal_to_secure_thread+0x38c/0x990 (P) kthread+0x150/0x210 ret_from_fork+0x10/0x20 Code: 97cfc113 f9400260 aa1403e1 f9400400 (f9400402) ---[ end trace 0000000000000000 ]--- The issue occurs because rsu_send_async_msg() fails when RSU is not enabled in firmware, causing the channel to be freed via stratix10_svc_free_channel(). However, the probe function continues execution and registers svc_normal_to_secure_thread(), which subsequently attempts to access the already-freed channel, triggering the NULL pointer dereference. Fix this by properly cleaning up the async client and returning early on failure, preventing the thread from being used with an invalid channel.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | linux | sid | 7.2.12-1 | fixed |
| Debian | linux | forky | 7.2.12-1 | fixed |
| Debian | linux | trixie | 6.12.107-1 | not affected |
| Debian | linux | trixie-security | 6.12.113-1 | not affected |
| Debian | linux | bookworm | 6.1.176-1 | not affected |
| Debian | linux | bookworm-security | 6.1.190-1 | not affected |
| Cpe | linux_kernel | Not reported | 6.19.9 | fixed |
| Cpe | linux_kernel | Not reported | Not reported | unknown |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | linux | source | sid | 6.19.10-1 | not yet assigned | Not reported | Not reported |
| Debian | linux | source | forky | 6.19.10-1 | not yet assigned | Not reported | Not reported |
| Debian | linux | source | trixie | Not affected | unimportant | Not reported | Not reported |
| Debian | linux | source | bookworm | Not affected | unimportant | Not reported | Not reported |
| Cpe | linux_kernel | cpe | Not reported | 6.19.9 | Not reported | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [bpftool]Not affected
Source package: [linux]
Details (6)
7.1.0+6.1.176-1· amd64 · bookwormNot affected
nvd · linux · debian · bookworm
7.1.0+6.1.176-1· arm64 · bookwormNot affected
nvd · linux · debian · bookworm
7.5.0+6.12.95-1~bpo12+1· amd64 · bookworm-backportsNot affected
nvd · linux · debian · bookworm
7.5.0+6.12.95-1~bpo12+1· arm64 · bookworm-backportsNot affected
nvd · linux · debian · bookworm
7.1.0+6.1.180-1· amd64 · bookworm-securityNot affected
nvd · linux · debian · bookworm
7.1.0+6.1.180-1· arm64 · bookworm-securityNot affected
nvd · linux · debian · bookworm
- [hyperv-daemons]Not affected
Source package: [linux]
Details (6)
6.1.176-1· amd64 · bookwormNot affected
nvd · linux · debian · bookworm
6.1.176-1· arm64 · bookwormNot affected
nvd · linux · debian · bookworm
6.12.95-1~bpo12+1· amd64 · bookworm-backportsNot affected
nvd · linux · debian · bookworm
6.12.95-1~bpo12+1· arm64 · bookworm-backportsNot affected
nvd · linux · debian · bookworm
6.1.180-1· amd64 · bookworm-securityNot affected
nvd · linux · debian · bookworm
6.1.180-1· arm64 · bookworm-securityNot affected
nvd · linux · debian · bookworm
- [intel-sdsi]Not affected
Source package: [linux]
Details (1)
6.12.95-1~bpo12+1· amd64 · bookworm-backportsNot affected
nvd · linux · debian · bookworm
- [libcpupower1]Not affected
Source package: [linux]
Details (6)
6.1.176-1· amd64 · bookwormNot affected
nvd · linux · debian · bookworm
6.1.176-1· arm64 · bookwormNot affected
nvd · linux · debian · bookworm
6.12.95-1~bpo12+1· amd64 · bookworm-backportsNot affected
nvd · linux · debian · bookworm
6.12.95-1~bpo12+1· arm64 · bookworm-backportsNot affected
nvd · linux · debian · bookworm
6.1.180-1· amd64 · bookworm-securityNot affected
nvd · linux · debian · bookworm
6.1.180-1· arm64 · bookworm-securityNot affected
nvd · linux · debian · bookworm
- [libcpupower-dev]Not affected
Source package: [linux]
Details (6)
6.1.176-1· amd64 · bookwormNot affected
nvd · linux · debian · bookworm
6.1.176-1· arm64 · bookwormNot affected
nvd · linux · debian · bookworm
6.12.95-1~bpo12+1· amd64 · bookworm-backportsNot affected
nvd · linux · debian · bookworm
6.12.95-1~bpo12+1· arm64 · bookworm-backportsNot affected
nvd · linux · debian · bookworm
6.1.180-1· amd64 · bookworm-securityNot affected
nvd · linux · debian · bookworm
6.1.180-1· arm64 · bookworm-securityNot affected
nvd · linux · debian · bookworm
- [linux-bpf-dev]Not affected
Source package: [linux]
Details (2)
6.12.95-1~bpo12+1· amd64 · bookworm-backportsNot affected
nvd · linux · debian · bookworm
6.12.95-1~bpo12+1· arm64 · bookworm-backportsNot affected
nvd · linux · debian · bookworm
- [linux-compiler-gcc-12-x86]Not affected
Source package: [linux]
Details (2)
6.1.176-1· amd64 · bookwormNot affected
nvd · linux · debian · bookworm
6.1.180-1· amd64 · bookworm-securityNot affected
nvd · linux · debian · bookworm
- [linux-config-6.1]Not affected
Source package: [linux]
Details (4)
6.1.176-1· amd64 · bookwormNot affected
nvd · linux · debian · bookworm
6.1.176-1· arm64 · bookwormNot affected
nvd · linux · debian · bookworm
6.1.180-1· amd64 · bookworm-securityNot affected
nvd · linux · debian · bookworm
6.1.180-1· arm64 · bookworm-securityNot affected
nvd · linux · debian · bookworm
- [linux-cpupower]Not affected
Source package: [linux]
Details (6)
6.1.176-1· amd64 · bookwormNot affected
nvd · linux · debian · bookworm
6.1.176-1· arm64 · bookwormNot affected
nvd · linux · debian · bookworm
6.12.95-1~bpo12+1· amd64 · bookworm-backportsNot affected
nvd · linux · debian · bookworm
6.12.95-1~bpo12+1· arm64 · bookworm-backportsNot affected
nvd · linux · debian · bookworm
6.1.180-1· amd64 · bookworm-securityNot affected
nvd · linux · debian · bookworm
6.1.180-1· arm64 · bookworm-securityNot affected
nvd · linux · debian · bookworm
- [linux-doc]Not affected
Source package: [linux]
Details (32)
6.1.170-3· all · bookwormNot affected
nvd · linux · debian · bookworm
6.1.170-3· all · bookwormNot affected
nvd · linux · debian · bookworm
6.1.176-1· all · bookwormNot affected
nvd · linux · debian · bookworm
6.1.176-1· all · bookwormNot affected
nvd · linux · debian · bookworm
6.12.43-1~bpo12+1· all · bookworm-backportsNot affected
nvd · linux · debian · bookworm
6.12.43-1~bpo12+1· all · bookworm-backportsNot affected
nvd · linux · debian · bookworm
6.12.57-1~bpo12+1· all · bookworm-backportsNot affected
nvd · linux · debian · bookworm
6.12.57-1~bpo12+1· all · bookworm-backportsNot affected
nvd · linux · debian · bookworm
6.12.63-1~bpo12+1· all · bookworm-backportsNot affected
nvd · linux · debian · bookworm
6.12.63-1~bpo12+1· all · bookworm-backportsNot affected
nvd · linux · debian · bookworm
6.12.69-1~bpo12+1· all · bookworm-backportsNot affected
nvd · linux · debian · bookworm
6.12.69-1~bpo12+1· all · bookworm-backportsNot affected
nvd · linux · debian · bookworm
6.12.73-1~bpo12+1· all · bookworm-backportsNot affected
nvd · linux · debian · bookworm
6.12.73-1~bpo12+1· all · bookworm-backportsNot affected
nvd · linux · debian · bookworm
6.12.74-2~bpo12+1· all · bookworm-backportsNot affected
nvd · linux · debian · bookworm
6.12.74-2~bpo12+1· all · bookworm-backportsNot affected
nvd · linux · debian · bookworm
6.12.85-1~bpo12+1· all · bookworm-backportsNot affected
nvd · linux · debian · bookworm
6.12.85-1~bpo12+1· all · bookworm-backportsNot affected
nvd · linux · debian · bookworm
6.12.86-1~bpo12+1· all · bookworm-backportsNot affected
nvd · linux · debian · bookworm
6.12.86-1~bpo12+1· all · bookworm-backportsNot affected
nvd · linux · debian · bookworm
6.12.88-1~bpo12+1· all · bookworm-backportsNot affected
nvd · linux · debian · bookworm
6.12.88-1~bpo12+1· all · bookworm-backportsNot affected
nvd · linux · debian · bookworm
6.12.90-1~bpo12+1· all · bookworm-backportsNot affected
nvd · linux · debian · bookworm
6.12.90-1~bpo12+1· all · bookworm-backportsNot affected
nvd · linux · debian · bookworm
6.12.90-2~bpo12+1· all · bookworm-backportsNot affected
nvd · linux · debian · bookworm
6.12.90-2~bpo12+1· all · bookworm-backportsNot affected
nvd · linux · debian · bookworm
6.12.94-1~bpo12+1· all · bookworm-backportsNot affected
nvd · linux · debian · bookworm
6.12.94-1~bpo12+1· all · bookworm-backportsNot affected
nvd · linux · debian · bookworm
6.12.95-1~bpo12+1· all · bookworm-backportsNot affected
nvd · linux · debian · bookworm
6.12.95-1~bpo12+1· all · bookworm-backportsNot affected
nvd · linux · debian · bookworm
6.1.180-1· all · bookworm-securityNot affected
nvd · linux · debian · bookworm
6.1.180-1· all · bookworm-securityNot affected
nvd · linux · debian · bookworm
- [linux-doc-6.1]Not affected
Source package: [linux]
Details (6)
6.1.170-3· all · bookwormNot affected
nvd · linux · debian · bookworm
6.1.170-3· all · bookwormNot affected
nvd · linux · debian · bookworm
6.1.176-1· all · bookwormNot affected
nvd · linux · debian · bookworm
6.1.176-1· all · bookwormNot affected
nvd · linux · debian · bookworm
6.1.180-1· all · bookworm-securityNot affected
nvd · linux · debian · bookworm
6.1.180-1· all · bookworm-securityNot affected
nvd · linux · debian · bookworm
- [linux-headers-6.1.0-47-amd64]Not affected
Source package: [linux]
Details (1)
6.1.170-3· amd64 · bookwormNot affected
nvd · linux · debian · bookworm
- [linux-headers-6.1.0-47-arm64]Not affected
Source package: [linux]
Details (1)
6.1.170-3· arm64 · bookwormNot affected
nvd · linux · debian · bookworm
- [linux-headers-6.1.0-47-cloud-amd64]Not affected
Source package: [linux]
Details (1)
6.1.170-3· amd64 · bookwormNot affected
nvd · linux · debian · bookworm
- [linux-headers-6.1.0-47-cloud-arm64]Not affected
Source package: [linux]
Details (1)
6.1.170-3· arm64 · bookwormNot affected
nvd · linux · debian · bookworm
- [linux-headers-6.1.0-47-common]Not affected
Source package: [linux]
Details (2)
6.1.170-3· all · bookwormNot affected
nvd · linux · debian · bookworm
6.1.170-3· all · bookwormNot affected
nvd · linux · debian · bookworm
- [linux-headers-6.1.0-47-common-rt]Not affected
Source package: [linux]
Details (2)
6.1.170-3· all · bookwormNot affected
nvd · linux · debian · bookworm
6.1.170-3· all · bookwormNot affected
nvd · linux · debian · bookworm
- [linux-headers-6.1.0-47-rt-amd64]Not affected
Source package: [linux]
Details (1)
6.1.170-3· amd64 · bookwormNot affected
nvd · linux · debian · bookworm
- [linux-headers-6.1.0-47-rt-arm64]Not affected
Source package: [linux]
Details (1)
6.1.170-3· arm64 · bookwormNot affected
nvd · linux · debian · bookworm
- [linux-headers-6.1.0-50-amd64]Not affected
Source package: [linux]
Details (1)
6.1.176-1· amd64 · bookwormNot affected
nvd · linux · debian · bookworm
Observed:
References
- [https://nvd.nist.gov/vuln/detail/CVE-2026-43410]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-43410]
- [https://security-tracker.debian.org/tracker/CVE-2026-43410]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43410.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1454.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]