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Florian Westphal 0ac219c4c3 netlink: add nla be16/32 types to minlen array 
[ Upstream commit 9a0d18853c ]

BUG: KMSAN: uninit-value in nla_validate_range_unsigned lib/nlattr.c:222 [inline]
BUG: KMSAN: uninit-value in nla_validate_int_range lib/nlattr.c:336 [inline]
BUG: KMSAN: uninit-value in validate_nla lib/nlattr.c:575 [inline]
BUG: KMSAN: uninit-value in __nla_validate_parse+0x2e20/0x45c0 lib/nlattr.c:631
 nla_validate_range_unsigned lib/nlattr.c:222 [inline]
 nla_validate_int_range lib/nlattr.c:336 [inline]
 validate_nla lib/nlattr.c:575 [inline]
...

The message in question matches this policy:

 [NFTA_TARGET_REV]       = NLA_POLICY_MAX(NLA_BE32, 255),

but because NLA_BE32 size in minlen array is 0, the validation
code will read past the malformed (too small) attribute.

Note: Other attributes, e.g. BITFIELD32, SINT, UINT.. are also missing:
those likely should be added too.

Reported-by: syzbot+3f497b07aa3baf2fb4d0@syzkaller.appspotmail.com
Reported-by: xingwei lee <xrivendell7@gmail.com>
Closes: https://lore.kernel.org/all/CABOYnLzFYHSnvTyS6zGa-udNX55+izqkOt2sB9WDqUcEGW6n8w@mail.gmail.com/raw
Fixes: ecaf75ffd5 ("netlink: introduce bigendian integer types")
Signed-off-by: Florian Westphal <fw@strlen.de>
Link: https://lore.kernel.org/r/20240221172740.5092-1-fw@strlen.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-03-06 14:45:06 +00:00
arch ARM: dts: imx7s: Drop dma-apb interrupt-names 2024-03-06 14:45:05 +00:00
block block: Fix WARNING in _copy_from_iter 2024-03-01 13:26:25 +01:00
certs certs: Fix build error when PKCS#11 URI contains semicolon 2023-02-09 11:28:11 +01:00
crypto crypto: api - Disallow identical driver names 2024-01-31 16:16:58 -08:00
Documentation arm64: Subscribe Microsoft Azure Cobalt 100 to ARM Neoverse N2 errata 2024-02-23 09:12:52 +01:00
drivers mtd: spinand: gigadevice: Fix the get ecc status issue 2024-03-06 14:45:06 +00:00
fs fs/ntfs3: Fix NULL pointer dereference in 'ni_write_inode' 2024-03-06 14:45:06 +00:00
include usb: gadget: Properly configure the device for remote wakeup 2024-03-06 14:45:05 +00:00
init update workarounds for gcc "asm goto" issue 2024-02-23 09:12:28 +01:00
io_uring io_uring/net: fix multishot accept overflow handling 2024-02-23 09:12:43 +01:00
ipc
kernel bpf: Fix racing between bpf_timer_cancel_and_free and bpf_timer_cancel 2024-03-01 13:26:36 +01:00
lib netlink: add nla be16/32 types to minlen array 2024-03-06 14:45:06 +00:00
LICENSES
mm mm: huge_memory: don't force huge page alignment on 32 bit 2024-03-06 14:45:06 +00:00
net netlink: Fix kernel-infoleak-after-free in __skb_datagram_iter 2024-03-06 14:45:06 +00:00
rust rust: allocator: Prevent mis-aligned allocation 2023-08-11 12:08:18 +02:00
samples work around gcc bugs with 'asm goto' with outputs 2024-02-23 09:12:28 +01:00
scripts bpf, scripts: Correct GPL license name 2024-03-01 13:26:35 +01:00
security apparmor: Free up __cleanup() name 2024-02-23 09:12:51 +01:00
sound ALSA: usb-audio: Ignore clock selector errors for single connection 2024-03-01 13:26:27 +01:00
tools net/sched: Retire dsmark qdisc 2024-03-01 13:26:24 +01:00
usr
virt kvm/vfio: ensure kvg instance stays around in kvm_vfio_group_add() 2023-09-13 09:42:46 +02:00
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MAINTAINERS genirq/affinity: Move group_cpus_evenly() into lib/ 2024-01-10 17:10:33 +01:00
Makefile Linux 6.1.80 2024-03-01 13:26:39 +01:00
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README 

Linux kernel
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There are several guides for kernel developers and users. These guides can
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In order to build the documentation, use ``make htmldocs`` or
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    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.