CVE-2025-39752None▾ SunlitIn 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 whi…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Nov 5.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
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
Linux >= 3ee851e212d0bb6be8c462059fba74ce2e3f6064 < 3c6bf7a324b8995b9c7d790c8d2abf0668f51551Linux >= 3ee851e212d0bb6be8c462059fba74ce2e3f6064 < 888a453c2a239765a7ab4de8a3cedae2e3802528Linux >= 3ee851e212d0bb6be8c462059fba74ce2e3f6064 < c0726d1e466e2d0da620836e293a59e6427ccdffLinux >= 3ee851e212d0bb6be8c462059fba74ce2e3f6064 < 265583266d93db4ff83d088819b1f63fdf0131dbLinux >= 3ee851e212d0bb6be8c462059fba74ce2e3f6064 < d7d6d076ee9532c4668f14696a35688d35dd16f4Linux >= 3ee851e212d0bb6be8c462059fba74ce2e3f6064 < 0223a3683d502b7e5eb2eb4ad7e97363fa88d531Linux >= 3ee851e212d0bb6be8c462059fba74ce2e3f6064 < 47769dab9073a73e127aa0bfd0ba4c51eaccdc33Linux >= 3ee851e212d0bb6be8c462059fba74ce2e3f6064 < 1eb67589a7e091b1e5108aab72fddbf4dc69af2cLinux >= 3ee851e212d0bb6be8c462059fba74ce2e3f6064 < 7cdb433bb44cdc87dc5260cdf15bf03cc1cd1814Linux 3.19Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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