user/sven/linux.git/lib, branch v4.19.1

test_ida: Fix lockdep warning

2018-10-15T20:31:29Z

The IDA was declared on the stack instead of statically, so lockdep triggered a warning that it was improperly initialised. Reported-by: 0day bot Tested-by: Rong Chen Signed-off-by: Matthew Wilcox

Merge tag 'mtd/fixes-for-4.19-rc8' of git://git.infradead.org/linux-mtd

2018-10-12T10:54:26Z

Boris writes: "mdt: fix for 4.19-rc8 * Fix a stack overflow in lib/bch.c" * tag 'mtd/fixes-for-4.19-rc8' of git://git.infradead.org/linux-mtd: lib/bch: fix possible stack overrun

lib/bch: fix possible stack overrun

2018-10-12T07:17:46Z

The previous patch introduced very large kernel stack usage and a Makefile change to hide the warning about it. From what I can tell, a number of things went wrong here: - The BCH_MAX_T constant was set to the maximum value for 'n', not the maximum for 't', which is much smaller. - The stack usage is actually larger than the entire kernel stack on some architectures that can use 4KB stacks (m68k, sh, c6x), which leads to an immediate overrun. - The justification in the patch description claimed that nothing changed, however that is not the case even without the two points above: the configuration is machine specific, and most boards never use the maximum BCH_ECC_WORDS() length but instead have something much smaller. That maximum would only apply to machines that use both the maximum block size and the maximum ECC strength. The largest value for 't' that I could find is '32', which in turn leads to a 60 byte array instead of 2048 bytes. Making it '64' for future extension seems also worthwhile, with 120 bytes for the array. Anything larger won't fit into the OOB area on NAND flash. With that changed, the warning can be enabled again. Only linux-4.19+ contains the breakage, so this is only needed as a stable backport if it does not make it into the release. Fixes: 02361bc77888 ("lib/bch: Remove VLA usage") Reported-by: Ard Biesheuvel Cc: stable@vger.kernel.org Signed-off-by: Arnd Bergmann Signed-off-by: Boris Brezillon

Merge tag 'trace-v4.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

2018-10-10T20:09:44Z

Steven writes: "vsprint fix: It was reported that trace_printk() was not reporting properly values that came after a dereference pointer. trace_printk() utilizes vbin_printf() and bstr_printf() to keep the overhead of tracing down. vbin_printf() does not do any conversions and just stors the string format and the raw arguments into the buffer. bstr_printf() is used to read the buffer and does the conversions to complete the printf() output. This can be troublesome with dereferenced pointers because the reference may be different from the time vbin_printf() is called to the time bstr_printf() is called. To fix this, a prior commit changed vbin_printf() to convert dereferenced pointers into strings and load the converted string into the buffer. But the change to bstr_printf() had an off-by-one error and didn't account for the nul character at the end of the string and this corrupted the rest of the values in the format that came after a dereferenced pointer." * tag 'trace-v4.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: vsprintf: Fix off-by-one bug in bstr_printf() processing dereferenced pointers

vsprintf: Fix off-by-one bug in bstr_printf() processing dereferenced pointers

2018-10-05T14:17:15Z

The functions vbin_printf() and bstr_printf() are used by trace_printk() to try to keep the overhead down during printing. trace_printk() uses vbin_printf() at the time of execution, as it only scans the fmt string to record the printf values into the buffer, and then uses vbin_printf() to do the conversions to print the string based on the format and the saved values in the buffer. This is an issue for dereferenced pointers, as before commit 841a915d20c7b, the processing of the pointer could happen some time after the pointer value was recorded (reading the trace buffer). This means the processing of the value at a later time could show different results, or even crash the system, if the pointer no longer existed. Commit 841a915d20c7b addressed this by processing dereferenced pointers at the time of execution and save the result in the ring buffer as a string. The bstr_printf() would then treat these pointers as normal strings, and print the value. But there was an off-by-one bug here, where after processing the argument, it move the pointer only "strlen(arg)" which made the arg pointer not point to the next argument in the ring buffer, but instead point to the nul character of the last argument. This causes any values after a dereferenced pointer to be corrupted. Cc: stable@vger.kernel.org Fixes: 841a915d20c7b ("vsprintf: Do not have bprintf dereference pointers") Reported-by: Nikolay Borisov Tested-by: Nikolay Borisov Signed-off-by: Steven Rostedt (VMware)

lib/xz: Put CRC32_POLY_LE in xz_private.h

2018-10-01T22:44:59Z

This fixes a regression introduced by faa16bc404d72a5 ("lib: Use existing define with polynomial"). The cleanup added a dependency on include/linux, which broke the PowerPC boot wrapper/decompresser when KERNEL_XZ is enabled: BOOTCC arch/powerpc/boot/decompress.o In file included from arch/powerpc/boot/../../../lib/decompress_unxz.c:233, from arch/powerpc/boot/decompress.c:42: arch/powerpc/boot/../../../lib/xz/xz_crc32.c:18:10: fatal error: linux/crc32poly.h: No such file or directory #include ^~~~~~~~~~~~~~~~~~~ The powerpc decompresser is a hairy corner of the kernel. Even while building a 64-bit kernel it needs to build a 32-bit binary and therefore avoid including files from include/linux. This allows users of the xz library to avoid including headers from 'include/linux/' while still achieving the cleanup of the magic number. Fixes: faa16bc404d72a5 ("lib: Use existing define with polynomial") Reported-by: Meelis Roos Reported-by: kbuild test robot Suggested-by: Christophe LEROY Signed-off-by: Joel Stanley Tested-by: Meelis Roos Signed-off-by: Michael Ellerman

lib/Kconfig.debug: fix three typos in help text

2018-09-04T23:45:02Z

Fix three typos in CONFIG_WARN_ALL_UNSEEDED_RANDOM help text. Link: http://lkml.kernel.org/r/20180830194505.4778-1-thibaut@sautereau.fr Signed-off-by: Thibaut Sautereau Acked-by: Randy Dunlap Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2018-09-02T16:41:45Z

Pull core fixes from Thomas Gleixner: "A small set of updates for core code: - Prevent tracing in functions which are called from trace patching via stop_machine() to prevent executing half patched function trace entries. - Remove old GCC workarounds - Remove pointless includes of notifier.h" * 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: objtool: Remove workaround for unreachable warnings from old GCC notifier: Remove notifier header file wherever not used watchdog: Mark watchdog touch functions as notrace

notifier: Remove notifier header file wherever not used

2018-08-30T10:56:40Z

The conversion of the hotplug notifiers to a state machine left the notifier.h includes around in some places. Remove them. Signed-off-by: Mukesh Ojha Signed-off-by: Thomas Gleixner Link: https://lkml.kernel.org/r/1535114033-4605-1-git-send-email-mojha@codeaurora.org

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2018-08-27T18:59:39Z

Pull networking fixes from David Miller: 1) ICE, E1000, IGB, IXGBE, and I40E bug fixes from the Intel folks. 2) Better fix for AB-BA deadlock in packet scheduler code, from Cong Wang. 3) bpf sockmap fixes (zero sized key handling, etc.) from Daniel Borkmann. 4) Send zero IPID in TCP resets and SYN-RECV state ACKs, to prevent attackers using it as a side-channel. From Eric Dumazet. 5) Memory leak in mediatek bluetooth driver, from Gustavo A. R. Silva. 6) Hook up rt->dst.input of ipv6 anycast routes properly, from Hangbin Liu. 7) hns and hns3 bug fixes from Huazhong Tan. 8) Fix RIF leak in mlxsw driver, from Ido Schimmel. 9) iova range check fix in vhost, from Jason Wang. 10) Fix hang in do_tcp_sendpages() with tls, from John Fastabend. 11) More r8152 chips need to disable RX aggregation, from Kai-Heng Feng. 12) Memory exposure in TCA_U32_SEL handling, from Kees Cook. 13) TCP BBR congestion control fixes from Kevin Yang. 14) hv_netvsc, ignore non-PCI devices, from Stephen Hemminger. 15) qed driver fixes from Tomer Tayar. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (77 commits) net: sched: Fix memory exposure from short TCA_U32_SEL qed: fix spelling mistake "comparsion" -> "comparison" vhost: correctly check the iova range when waking virtqueue qlge: Fix netdev features configuration. net: macb: do not disable MDIO bus at open/close time Revert "net: stmmac: fix build failure due to missing COMMON_CLK dependency" net: macb: Fix regression breaking non-MDIO fixed-link PHYs mlxsw: spectrum_switchdev: Do not leak RIFs when removing bridge i40e: fix condition of WARN_ONCE for stat strings i40e: Fix for Tx timeouts when interface is brought up if DCB is enabled ixgbe: fix driver behaviour after issuing VFLR ixgbe: Prevent unsupported configurations with XDP ixgbe: Replace GFP_ATOMIC with GFP_KERNEL igb: Replace mdelay() with msleep() in igb_integrated_phy_loopback() igb: Replace GFP_ATOMIC with GFP_KERNEL in igb_sw_init() igb: Use an advanced ctx descriptor for launchtime e1000: ensure to free old tx/rx rings in set_ringparam() e1000: check on netif_running() before calling e1000_up() ixgb: use dma_zalloc_coherent instead of allocator/memset ice: Trivial formatting fixes ...