CVE-2025-39752

ARM: rockchip: fix kernel hang during smp initialization

State: Published
Severity: Not scored
Published: Sep 11, 2025
Updated: May 12, 2026
Reserved: Apr 16, 2025

Description

In the Linux kernel, the following vulnerability has been resolved:

ARM: rockchip: fix kernel hang during smp initialization

In order to bring up secondary CPUs main CPU write trampoline code to SRAM. The trampoline code is written while secondary CPUs are powered on (at least that true for RK3188 CPU). Sometimes that leads to kernel hang. Probably because secondary CPU execute trampoline code while kernel doesn't expect.

The patch moves SRAM initialization step to the point where all secondary CPUs are powered down.

That fixes rarely hangs on RK3188: [ 0.091568] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000 [ 0.091996] rockchip_smp_prepare_cpus: ncores 4

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	3ee851e212d0bb6be8c462059fba74ce2e3f6064 to before 3c6bf7a324b8995b9c7d790c8d2abf0668f51551Affected 3ee851e212d0bb6be8c462059fba74ce2e3f6064 to before 888a453c2a239765a7ab4de8a3cedae2e3802528Affected 3ee851e212d0bb6be8c462059fba74ce2e3f6064 to before c0726d1e466e2d0da620836e293a59e6427ccdffAffected 3ee851e212d0bb6be8c462059fba74ce2e3f6064 to before 265583266d93db4ff83d088819b1f63fdf0131dbAffected 3ee851e212d0bb6be8c462059fba74ce2e3f6064 to before d7d6d076ee9532c4668f14696a35688d35dd16f4Affected 3ee851e212d0bb6be8c462059fba74ce2e3f6064 to before 0223a3683d502b7e5eb2eb4ad7e97363fa88d531Affected 3ee851e212d0bb6be8c462059fba74ce2e3f6064 to before 47769dab9073a73e127aa0bfd0ba4c51eaccdc33Affected 3ee851e212d0bb6be8c462059fba74ce2e3f6064 to before 1eb67589a7e091b1e5108aab72fddbf4dc69af2cAffected 3ee851e212d0bb6be8c462059fba74ce2e3f6064 to before 7cdb433bb44cdc87dc5260cdf15bf03cc1cd1814Affected
LinuxLinux	3.19Affected before 3.19Not affected 5.4.297 through 5.4.Not affected 5.10.241 through 5.10.Not affected 5.15.190 through 5.15.Not affected 6.1.149 through 6.1.Not affected 6.6.103 through 6.6.Not affected 6.12.43 through 6.12.Not affected 6.15.11 through 6.15.Not affected 6.16.2 through 6.16.Not affected 6.17 and laterNot affected

Product

Versions

LinuxLinux

3ee851e212d0bb6be8c462059fba74ce2e3f6064 to before 3c6bf7a324b8995b9c7d790c8d2abf0668f51551Affected
3ee851e212d0bb6be8c462059fba74ce2e3f6064 to before 888a453c2a239765a7ab4de8a3cedae2e3802528Affected
3ee851e212d0bb6be8c462059fba74ce2e3f6064 to before c0726d1e466e2d0da620836e293a59e6427ccdffAffected
3ee851e212d0bb6be8c462059fba74ce2e3f6064 to before 265583266d93db4ff83d088819b1f63fdf0131dbAffected
3ee851e212d0bb6be8c462059fba74ce2e3f6064 to before d7d6d076ee9532c4668f14696a35688d35dd16f4Affected
3ee851e212d0bb6be8c462059fba74ce2e3f6064 to before 0223a3683d502b7e5eb2eb4ad7e97363fa88d531Affected
3ee851e212d0bb6be8c462059fba74ce2e3f6064 to before 47769dab9073a73e127aa0bfd0ba4c51eaccdc33Affected
3ee851e212d0bb6be8c462059fba74ce2e3f6064 to before 1eb67589a7e091b1e5108aab72fddbf4dc69af2cAffected
3ee851e212d0bb6be8c462059fba74ce2e3f6064 to before 7cdb433bb44cdc87dc5260cdf15bf03cc1cd1814Affected

LinuxLinux

3.19Affected
before 3.19Not affected
5.4.297 through 5.4.*Not affected
5.10.241 through 5.10.*Not affected
5.15.190 through 5.15.*Not affected
6.1.149 through 6.1.*Not affected
6.6.103 through 6.6.*Not affected
6.12.43 through 6.12.*Not affected
6.15.11 through 6.15.*Not affected
6.16.2 through 6.16.*Not affected
6.17 and laterNot affected

References

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