CVE-2025-39752
ARM: rockchip: fix kernel hang during smp initialization
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
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
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
3.19
References 9
git.kernel.org
- stable/c/3c6bf7a324b8995b9c7d790c8d2abf0668f51551
- stable/c/888a453c2a239765a7ab4de8a3cedae2e3802528
- stable/c/c0726d1e466e2d0da620836e293a59e6427ccdff
- stable/c/265583266d93db4ff83d088819b1f63fdf0131db
- stable/c/d7d6d076ee9532c4668f14696a35688d35dd16f4
- stable/c/0223a3683d502b7e5eb2eb4ad7e97363fa88d531
- stable/c/47769dab9073a73e127aa0bfd0ba4c51eaccdc33
- stable/c/1eb67589a7e091b1e5108aab72fddbf4dc69af2c
- stable/c/7cdb433bb44cdc87dc5260cdf15bf03cc1cd1814