From 506ada89629ec7059b96ecfb0dc7d33ece0103ca Mon Sep 17 00:00:00 2001 From: Eduard Zingerman Date: Fri, 4 Sep 2026 17:05:56 -0700 Subject: bpf: mark a NULL kfunc argument precise check_kfunc_arg() allows bpf_register_is_null() for nullable arguments w/o marking the underlying scalar register precise. Hence a checkpoint created on such a path would prune against arbitrary scalar value. Fixes: 3bda08b63670 ("bpf: Allow NULL buffers in bpf_dynptr_slice(_rw)") Signed-off-by: Eduard Zingerman Link: https://lore.kernel.org/r/20260904-register-is-null-precise-fixes-v1-5-0f5a360ff15d@gmail.com Signed-off-by: Alexei Starovoitov --- Documentation/admin-guide/ufs.rst | 68 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 Documentation/admin-guide/ufs.rst (limited to 'Documentation/admin-guide/ufs.rst') diff --git a/Documentation/admin-guide/ufs.rst b/Documentation/admin-guide/ufs.rst new file mode 100644 index 000000000..55d15297f --- /dev/null +++ b/Documentation/admin-guide/ufs.rst @@ -0,0 +1,68 @@ +========= +Using UFS +========= + +mount -t ufs -o ufstype=type_of_ufs device dir + + +UFS Options +=========== + +ufstype=type_of_ufs + UFS is a file system widely used in different operating systems. + The problem are differences among implementations. Features of + some implementations are undocumented, so its hard to recognize + type of ufs automatically. That's why user must specify type of + ufs manually by mount option ufstype. Possible values are: + + old + old format of ufs + default value, supported as read-only + + 44bsd + used in FreeBSD, NetBSD, OpenBSD + supported as read-write + + ufs2 + used in FreeBSD 5.x + supported as read-write + + 5xbsd + synonym for ufs2 + + sun + used in SunOS (Solaris) + supported as read-write + + sunx86 + used in SunOS for Intel (Solarisx86) + supported as read-write + + hp + used in HP-UX + supported as read-only + + nextstep + used in NextStep + supported as read-only + + nextstep-cd + used for NextStep CDROMs (block_size == 2048) + supported as read-only + + openstep + used in OpenStep + supported as read-only + + +Possible Problems +----------------- + +See next section, if you have any. + + +Bug Reports +----------- + +Any ufs bug report you can send to daniel.pirkl@email.cz or +to dushistov@mail.ru (do not send partition tables bug reports). -- cgit v1.3.1