From: Pavel Machek <pavel@denx.de>
To: Greg KH <gregkh@linuxfoundation.org>
Cc: Daniel Axtens <dja@axtens.net>, Sasha Levin <sashal@kernel.org>,
linux-kernel@vger.kernel.org, stable@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
David Gow <davidgow@google.com>,
Dmitry Vyukov <dvyukov@google.com>,
Daniel Micay <danielmicay@gmail.com>,
Andrey Ryabinin <aryabinin@virtuozzo.com>,
Alexander Potapenko <glider@google.com>,
Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [PATCH AUTOSEL 4.14 72/72] string.h: fix incompatibility between FORTIFY_SOURCE and KASAN
Date: Tue, 9 Jun 2020 15:55:17 +0200 [thread overview]
Message-ID: <20200609135517.GA4806@amd> (raw)
In-Reply-To: <20200609115407.GA819153@kroah.com>
[-- Attachment #1: Type: text/plain, Size: 1385 bytes --]
On Tue 2020-06-09 13:54:07, Greg KH wrote:
> On Tue, Jun 09, 2020 at 01:20:25PM +0200, Pavel Machek wrote:
> > On Tue 2020-06-09 09:46:08, Daniel Axtens wrote:
> > > Hi Sasha,
> > >
> > > There's nothing inherently wrong with these patches being backported,
> > > but they fix a bug that doesn't cause a crash and only affects debug
> > > kernels compiled with KASAN and FORTIFY_SOURCE. Personally I wouldn't
> > > change a core header file in a stable kernel for that. Perhaps I'm too
> > > risk-averse.
> >
> > You are in agreement with existing documentation -- stable is only for
> > serious bugs.
>
> No, lots of people run KASAN on those kernels when they are testing
> their devices, this patch is fine.
Documentation currently says:
- It must fix a problem that causes a build error (but not for things
marked CONFIG_BROKEN), an oops, a hang, data corruption, a real
security issue, or some "oh, that's not good" issue. In short,
something critical.
...but we also get various warning fixes (sometimes for external
tools), changes to make printk()s less verbose, changes to make
debugging easier, etc...
Could the documentation be updated to match current use?
Thanks,
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 181 bytes --]
prev parent reply other threads:[~2020-06-09 13:55 UTC|newest]
Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-08 23:23 [PATCH AUTOSEL 4.14 01/72] ath9x: Fix stack-out-of-bounds Write in ath9k_hif_usb_rx_cb Sasha Levin
2020-06-08 23:23 ` [PATCH AUTOSEL 4.14 02/72] ath9k: Fix use-after-free Write in ath9k_htc_rx_msg Sasha Levin
2020-06-08 23:23 ` [PATCH AUTOSEL 4.14 03/72] drm: bridge: adv7511: Extend list of audio sample rates Sasha Levin
2020-06-08 23:23 ` [PATCH AUTOSEL 4.14 04/72] crypto: ccp -- don't "select" CONFIG_DMADEVICES Sasha Levin
2020-06-08 23:23 ` [PATCH AUTOSEL 4.14 05/72] media: si2157: Better check for running tuner in init Sasha Levin
2020-06-08 23:23 ` [PATCH AUTOSEL 4.14 06/72] objtool: Ignore empty alternatives Sasha Levin
2020-06-08 23:23 ` [PATCH AUTOSEL 4.14 07/72] spi: pxa2xx: Apply CS clk quirk to BXT Sasha Levin
2020-06-08 23:23 ` [PATCH AUTOSEL 4.14 08/72] net: ena: fix error returning in ena_com_get_hash_function() Sasha Levin
2020-06-08 23:23 ` [PATCH AUTOSEL 4.14 09/72] spi: dw: Zero DMA Tx and Rx configurations on stack Sasha Levin
2020-06-08 23:23 ` [PATCH AUTOSEL 4.14 10/72] ixgbe: Fix XDP redirect on archs with PAGE_SIZE above 4K Sasha Levin
2020-06-08 23:23 ` [PATCH AUTOSEL 4.14 11/72] MIPS: Loongson: Build ATI Radeon GPU driver as module Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 12/72] Bluetooth: Add SCO fallback for invalid LMP parameters error Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 13/72] kgdb: Prevent infinite recursive entries to the debugger Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 14/72] spi: dw: Enable interrupts in accordance with DMA xfer mode Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 15/72] clocksource: dw_apb_timer: Make CPU-affiliation being optional Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 16/72] clocksource: dw_apb_timer_of: Fix missing clockevent timers Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 17/72] btrfs: do not ignore error from btrfs_next_leaf() when inserting checksums Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 18/72] ARM: 8978/1: mm: make act_mm() respect THREAD_SIZE Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 19/72] spi: dw: Fix Rx-only DMA transfers Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 20/72] x86/kvm/hyper-v: Explicitly align hcall param for kvm_hyperv_exit Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 21/72] net: vmxnet3: fix possible buffer overflow caused by bad DMA value in vmxnet3_get_rss() Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 22/72] staging: android: ion: use vmap instead of vm_map_ram Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 23/72] ath9k: Fix use-after-free Read in ath9k_wmi_ctrl_rx Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 24/72] ath9k: Fix general protection fault in ath9k_hif_usb_rx_cb Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 25/72] brcmfmac: fix wrong location to get firmware feature Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 26/72] tools api fs: Make xxx__mountpoint() more scalable Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 27/72] e1000: Distribute switch variables for initialization Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 28/72] dt-bindings: display: mediatek: control dpi pins mode to avoid leakage Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 29/72] audit: fix a net reference leak in audit_send_reply() Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 30/72] media: dvb: return -EREMOTEIO on i2c transfer failure Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 31/72] media: platform: fcp: Set appropriate DMA parameters Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 32/72] MIPS: Make sparse_init() using top-down allocation Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 33/72] audit: fix a net reference leak in audit_list_rules_send() Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 34/72] netfilter: nft_nat: return EOPNOTSUPP if type or flags are not supported Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 35/72] net: bcmgenet: set Rx mode before starting netif Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 36/72] lib/mpi: Fix 64-bit MIPS build with Clang Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 37/72] perf: Add cond_resched() to task_function_call() Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 38/72] exit: Move preemption fixup up, move blocking operations down Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 39/72] net: lpc-enet: fix error return code in lpc_mii_init() Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 40/72] media: cec: silence shift wrapping warning in __cec_s_log_addrs() Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 41/72] net: allwinner: Fix use correct return type for ndo_start_xmit() Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 42/72] powerpc/spufs: fix copy_to_user while atomic Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 43/72] ath9k_htc: Silence undersized packet warnings Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 44/72] Crypto/chcr: fix for ccm(aes) failed test Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 45/72] MIPS: Truncate link address into 32bit for 32bit kernel Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 46/72] mips: cm: Fix an invalid error code of INTVN_*_ERR Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 47/72] kgdb: Fix spurious true from in_dbg_master() Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 48/72] nvme: refine the Qemu Identify CNS quirk Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 49/72] wcn36xx: Fix error handling path in 'wcn36xx_probe()' Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 50/72] net: qed*: Reduce RX and TX default ring count when running inside kdump kernel Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 51/72] md: don't flush workqueue unconditionally in md_open Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 52/72] rtlwifi: Fix a double free in _rtl_usb_tx_urb_setup() Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 53/72] mwifiex: Fix memory corruption in dump_station Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 54/72] x86/boot: Correct relocation destination on old linkers Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 55/72] mips: MAAR: Use more precise address mask Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 56/72] mips: Add udelay lpj numbers adjustment Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 57/72] x86/mm: Stop printing BRK addresses Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 58/72] m68k: mac: Don't call via_flush_cache() on Mac IIfx Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 59/72] macvlan: Skip loopback packets in RX handler Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 60/72] PCI: Don't disable decoding when mmio_always_on is set Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 61/72] MIPS: Fix IRQ tracing when call handle_fpe() and handle_msa_fpe() Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 62/72] xfs: gut error handling in xfs_trans_unreserve_and_mod_sb() Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 63/72] mmc: sdhci-msm: Set SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12 quirk Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 64/72] staging: greybus: sdio: Respect the cmd->busy_timeout from the mmc core Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 65/72] mmc: via-sdmmc: " Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 66/72] ixgbe: fix signed-integer-overflow warning Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 67/72] mmc: sdhci-esdhc-imx: fix the mask for tuning start point Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 68/72] spi: dw: Return any value retrieved from the dma_transfer callback Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 69/72] cpuidle: Fix three reference count leaks Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 70/72] platform/x86: hp-wmi: Convert simple_strtoul() to kstrtou32() Sasha Levin
2020-06-08 23:24 ` [PATCH AUTOSEL 4.14 71/72] vxlan: Avoid infinite loop when suppressing NS messages with invalid options Sasha Levin
2020-06-08 23:25 ` [PATCH AUTOSEL 4.14 72/72] string.h: fix incompatibility between FORTIFY_SOURCE and KASAN Sasha Levin
2020-06-08 23:46 ` Daniel Axtens
2020-06-09 11:20 ` Pavel Machek
2020-06-09 11:54 ` Greg KH
2020-06-09 13:55 ` Pavel Machek [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200609135517.GA4806@amd \
--to=pavel@denx.de \
--cc=akpm@linux-foundation.org \
--cc=aryabinin@virtuozzo.com \
--cc=danielmicay@gmail.com \
--cc=davidgow@google.com \
--cc=dja@axtens.net \
--cc=dvyukov@google.com \
--cc=glider@google.com \
--cc=gregkh@linuxfoundation.org \
--cc=linux-kernel@vger.kernel.org \
--cc=sashal@kernel.org \
--cc=stable@vger.kernel.org \
--cc=torvalds@linux-foundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).