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Diffstat (limited to 'patches/cve/CVE-2019-11486.patch')
-rw-r--r-- | patches/cve/CVE-2019-11486.patch | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/patches/cve/CVE-2019-11486.patch b/patches/cve/CVE-2019-11486.patch new file mode 100644 index 0000000..8157eee --- /dev/null +++ b/patches/cve/CVE-2019-11486.patch | |||
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1 | From c7084edc3f6d67750f50d4183134c4fb5712a5c8 Mon Sep 17 00:00:00 2001 | ||
2 | From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> | ||
3 | Date: Fri, 5 Apr 2019 15:39:26 +0200 | ||
4 | Subject: tty: mark Siemens R3964 line discipline as BROKEN | ||
5 | |||
6 | The n_r3964 line discipline driver was written in a different time, when | ||
7 | SMP machines were rare, and users were trusted to do the right thing. | ||
8 | Since then, the world has moved on but not this code, it has stayed | ||
9 | rooted in the past with its lovely hand-crafted list structures and | ||
10 | loads of "interesting" race conditions all over the place. | ||
11 | |||
12 | After attempting to clean up most of the issues, I just gave up and am | ||
13 | now marking the driver as BROKEN so that hopefully someone who has this | ||
14 | hardware will show up out of the woodwork (I know you are out there!) | ||
15 | and will help with debugging a raft of changes that I had laying around | ||
16 | for the code, but was too afraid to commit as odds are they would break | ||
17 | things. | ||
18 | |||
19 | Many thanks to Jann and Linus for pointing out the initial problems in | ||
20 | this codebase, as well as many reviews of my attempts to fix the issues. | ||
21 | It was a case of whack-a-mole, and as you can see, the mole won. | ||
22 | |||
23 | Reported-by: Jann Horn <jannh@google.com> | ||
24 | Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> | ||
25 | Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> | ||
26 | Signed-off-by: Adrian Stratulat <adrian.stratulat@enea.com> | ||
27 | Upstream-Status: Backport [https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c7084edc3f6d67750f50d4183134c4fb5712a5c8] | ||
28 | CVE: CVE-2019-11486 | ||
29 | --- | ||
30 | drivers/char/Kconfig | 2 +- | ||
31 | 1 file changed, 1 insertion(+), 1 deletion(-) | ||
32 | |||
33 | diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig | ||
34 | index 72866a004f07..466ebd84ad17 100644 | ||
35 | --- a/drivers/char/Kconfig | ||
36 | +++ b/drivers/char/Kconfig | ||
37 | @@ -348,7 +348,7 @@ config XILINX_HWICAP | ||
38 | |||
39 | config R3964 | ||
40 | tristate "Siemens R3964 line discipline" | ||
41 | - depends on TTY | ||
42 | + depends on TTY && BROKEN | ||
43 | ---help--- | ||
44 | This driver allows synchronous communication with devices using the | ||
45 | Siemens R3964 packet protocol. Unless you are dealing with special | ||
46 | -- | ||
47 | cgit 1.2-0.3.lf.el7 | ||
48 | |||