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Groups > linux.kernel > #1283397
| From | Bjorn Andersson <bjorn@kryo.se> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [RESEND v4 2/6] remoteproc: debugfs: Add ability to boot remote processor using debugfs |
| Date | 2015-12-03 22:30 +0100 |
| Message-ID | <qBJBU-22d-15@gated-at.bofh.it> (permalink) |
| References | <qylFL-9v-1@gated-at.bofh.it> <qBC7n-5Es-5@gated-at.bofh.it> <qBFRE-879-5@gated-at.bofh.it> <qBJsf-1YU-31@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Thu, Dec 3, 2015 at 1:12 PM, Arnd Bergmann <arnd@arndb.de> wrote: > On Thursday 03 December 2015 17:28:30 Lee Jones wrote: >> > >> > Ah, interesting. I haven't tried myself, and just tried to read the >> > code. Maybe glibc already catches zero-length writes before it gets >> > into the kernel, or I just missed the part of the syscall that checks >> > for this. >> >> Glibc is responsible indeed: >> >> http://osxr.org/glibc/source/io/write.c > > Ok, so an attacker can force the stack overflow by calling > syscall(__NR_write, fd, p, 0) if that has any potential value, > but normal users won't hit this case. > It seems glibc might be the only libc implementation with this protection. Regards, Bjorn -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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Re: [RESEND v4 2/6] remoteproc: debugfs: Add ability to boot remote processor using debugfs Lee Jones <lee.jones@linaro.org> - 2015-12-03 13:30 +0100
Re: [RESEND v4 2/6] remoteproc: debugfs: Add ability to boot remote processor using debugfs Arnd Bergmann <arnd@arndb.de> - 2015-12-03 13:50 +0100
Re: [RESEND v4 2/6] remoteproc: debugfs: Add ability to boot remote processor using debugfs Lee Jones <lee.jones@linaro.org> - 2015-12-03 14:10 +0100
Re: [RESEND v4 2/6] remoteproc: debugfs: Add ability to boot remote processor using debugfs Arnd Bergmann <arnd@arndb.de> - 2015-12-03 14:30 +0100
Re: [RESEND v4 2/6] remoteproc: debugfs: Add ability to boot remote processor using debugfs Lee Jones <lee.jones@linaro.org> - 2015-12-03 18:30 +0100
Re: [RESEND v4 2/6] remoteproc: debugfs: Add ability to boot remote processor using debugfs Arnd Bergmann <arnd@arndb.de> - 2015-12-03 22:20 +0100
Re: [RESEND v4 2/6] remoteproc: debugfs: Add ability to boot remote processor using debugfs Bjorn Andersson <bjorn@kryo.se> - 2015-12-03 22:30 +0100
Re: [RESEND v4 2/6] remoteproc: debugfs: Add ability to boot remote processor using debugfs Lee Jones <lee.jones@linaro.org> - 2015-12-04 09:30 +0100
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