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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-01-21 11:37:22 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-01-21 11:37:22 -0800 |
| commit | 2561bbbe2e959c966e21ee23de91b9bd4bbf98af (patch) | |
| tree | 7527ad616184dd5d06fdf23de8d2699536300f33 /fs | |
| parent | 6a52f4cf863a53b8196286e2b95d3ef3bd8183ad (diff) | |
| parent | 535b6a122c6b43af5772ca39cbff7056749aae74 (diff) | |
Merge tag 'printk-for-5.11-printk-rework-fixup' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux
Pull printk fixes from Petr Mladek:
- Fix line counting and buffer size calculation. Both regressions
caused that a reader buffer might not get filled as much as possible.
- Restore non-documented behavior of printk() reader API and make it
official.
It did not fill the last byte of the provided buffer before 5.10. Two
architectures, powerpc and um, used it to add the trailing '\0'.
There might theoretically be more callers depending on this behavior
in userspace.
* tag 'printk-for-5.11-printk-rework-fixup' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux:
printk: fix buffer overflow potential for print_text()
printk: fix kmsg_dump_get_buffer length calulations
printk: ringbuffer: fix line counting
Diffstat (limited to 'fs')
0 files changed, 0 insertions, 0 deletions