Re: riscv32 EXT4 splat, 6.8 regression?

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Sat, Apr 13, 2024 at 07:46:03PM -0600, Andreas Dilger wrote:
> This looks like a straight-forward mathematical substitution of "dlimit"
> with "search_buf + buf_size" and rearranging of the terms to make the
> while loop offset "zero based" rather than "address based" and would
> avoid overflow if "search_buf" was within one 4kB block of overflow:
> 
>    dlimit = search_buf + buf_size = 0xfffff000 + 0x1000 = 0x00000000

Umm... maybe, but does riscv32 actually have a memory map where a
kernel page would actually have an address in high memory like that?
That seems.... unusual.

If we have a reliable reproduction, can someone actually printk the
address or test to see if this theory is correct?

	   	       	       - Ted




[Index of Archives]     [Reiser Filesystem Development]     [Ceph FS]     [Kernel Newbies]     [Security]     [Netfilter]     [Bugtraq]     [Linux FS]     [Yosemite National Park]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Device Mapper]     [Linux Media]

  Powered by Linux