Hi,

On 2026-09-19 11:50, Aurelien Jarno wrote:
> control: forwarded -1 
> https://lore.kernel.org/all/[email protected]/
> control: forcemerge -1 1148365
> 
> Hi,
> 
> On 2026-09-19 16:49, Lufei Zheng wrote:
> > Package: linux-image-7.1.13+deb14-riscv64
> > Version: 7.1.13-1
> > Severity: important
> > Tags: upstream
> > X-Debbugs-Cc: [email protected]
> > 
> > Dear maintainers,
> > 
> > arch/riscv/lib/strnlen.S has an integer-overflow bug: for a very large 
> > `count` (in practice `(size_t)-1`) the address computation `s + count` 
> > wraps around 2^64, the loop bound becomes smaller than the start address, 
> > and strnlen() returns a length derived only from the first machine 
> > word(typically 8).  The same wrap exists in the byte-loop fallback.
> 
> The issue has been reported upstream with a patch [1], but it is still 
> under review. If you can test it and send a Tested-by: that would help 
> the patch to get accepted faster.
> 
> It will get added to the debian kernel once it get fixed upstream.

The patch got merged upstream in 7.3-rc7 and is is queued for the 
7.2.11 stable release.

Regards
Aurelien

-- 
Aurelien Jarno                          GPG: 4096R/1DDD8C9B
[email protected]                     http://aurel32.net

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