Description

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

remoteproc: core: Clear table_sz when rproc_shutdown

There is case as below could trigger kernel dump:
Use U-Boot to start remote processor(rproc) with resource table
published to a fixed address by rproc. After Kernel boots up,
stop the rproc, load a new firmware which doesn't have resource table
,and start rproc.

When starting rproc with a firmware not have resource table,
`memcpy(loaded_table, rproc->cached_table, rproc->table_sz)` will
trigger dump, because rproc->cache_table is set to NULL during the last
stop operation, but rproc->table_sz is still valid.

This issue is found on i.MX8MP and i.MX9.

Dump as below:
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000
Mem abort info:
ESR = 0x0000000096000004
EC = 0x25: DABT (current EL), IL = 32 bits
SET = 0, FnV = 0
EA = 0, S1PTW = 0
FSC = 0x04: level 0 translation fault
Data abort info:
ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000
CM = 0, WnR = 0, TnD = 0, TagAccess = 0
GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
user pgtable: 4k pages, 48-bit VAs, pgdp=000000010af63000
[0000000000000000] pgd=0000000000000000, p4d=0000000000000000
Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP
Modules linked in:
CPU: 2 UID: 0 PID: 1060 Comm: sh Not tainted 6.14.0-rc7-next-20250317-dirty #38
Hardware name: NXP i.MX8MPlus EVK board (DT)
pstate: a0000005 (NzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __pi_me...

Classification

CVE ID: CVE-2025-38152

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.01% (probability of being exploited)

EPSS Percentile: 1.38% (scored less or equal to compared to others)

EPSS Date: 2025-05-07 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-38152
https://git.kernel.org/stable/c/6e66bca8cd51ebedd5d32426906a38e4a3c69c5f
https://git.kernel.org/stable/c/e6015ca453b82ec54aec9682dcc38773948fcc48
https://git.kernel.org/stable/c/7c6bb82a6f3da6ab2d3fbea03901482231708b98
https://git.kernel.org/stable/c/2df19f5f6f72da6f6ebab7cdb3a3b9f7686bb476
https://git.kernel.org/stable/c/8e0fd2a3b9852ac3cf540edb06ccc0153b38b5af
https://git.kernel.org/stable/c/068f6648ff5b0c7adeb6c363fae7fb188aa178fa
https://git.kernel.org/stable/c/efdde3d73ab25cef4ff2d06783b0aad8b093c0e4

Timeline