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openEuler Kernel SIG 双周例会
by openEuler conference 10 Nov '23

10 Nov '23

您好！ Kernel SIG 邀请您参加 2023-11-24 14:00 召开的WeLink会议(自动录制) 会议主题：openEuler Kernel SIG 双周例会会议内容： 1. 进展update 2. 议题征集中（新增议题可回复邮件申请，也可直接填至会议看板）会议链接：https://bmeeting.huaweicloud.com:36443/#/j/963265866 会议纪要：https://etherpad.openeuler.org/p/Kernel-meetings 温馨提醒：建议接入会议后修改参会人的姓名，也可以使用您在gitee.com的ID 更多资讯尽在：https://openeuler.org/zh/ Hello! openEuler Kernel SIG invites you to attend the WeLink conference(auto recording) will be held at 2023-11-24 14:00, The subject of the conference is openEuler Kernel SIG 双周例会, Summary: 1. 进展update 2. 议题征集中（新增议题可回复邮件申请，也可直接填至会议看板） You can join the meeting at https://bmeeting.huaweicloud.com:36443/#/j/963265866. Add topics at https://etherpad.openeuler.org/p/Kernel-meetings. Note: You are advised to change the participant name after joining the conference or use your ID at gitee.com. More information: https://openeuler.org/en/

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[PATCH openEuler-22.03-LTS 00/22] Add error handle for add_disk
by Li Nan 09 Nov '23

09 Nov '23

To make applying the mainline patch easier, reorder the nbd commit about the first_minor check here. Christoph Hellwig (5): block: fold register_disk into device_add_disk block: call blk_integrity_add earlier in device_add_disk block: add the events* attributes to disk_attrs block: fix error unwinding in device_add_disk block: clear ->slave_dir when dropping the main slave_dir reference Luis Chamberlain (4): block: return errors from blk_integrity_add block: return errors from disk_alloc_events block: add error handling for device_add_disk / add_disk block: fix device_add_disk() kobject_create_and_add() error handling Tetsuo Handa (1): block: check minor range in device_add_disk() Wen Yang (1): Revert "Revert "block: nbd: add sanity check for first_minor"" Yu Kuai (3): nbd: fix max value for 'first_minor' nbd: fix possible overflow for 'first_minor' in nbd_dev_add() block: fix memory leak for elevator on add_disk failure Zhang Wensheng (1): nbd: fix possible overflow on 'first_minor' in nbd_dev_add() Zhong Jinghua (7): nbd: Reorganize the messy commit log about the first_minor check block: return errors from blk_register_region block: Fix the kabi change in device_add_disk block: Fix the kabi change on blk_register_region block: call blk_get_queue earlier in __device_add_disk block: Fix minor range check in device_add_disk() block: Set memalloc_noio to false in the error path block/blk.h | 5 +- include/linux/genhd.h | 13 +++ block/blk-integrity.c | 12 ++- block/genhd.c | 246 +++++++++++++++++++++++++----------------- drivers/block/nbd.c | 15 +-- 5 files changed, 175 insertions(+), 116 deletions(-) -- 2.39.2

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[PATCH OLK-5.10 v2 00/20] Add error handle for driver
by Li Nan 09 Nov '23

09 Nov '23

Christoph Hellwig (9): block: add blk_alloc_disk and blk_cleanup_disk APIs blk-mq: add the blk_mq_alloc_disk APIs loop: use blk_mq_alloc_disk and blk_cleanup_disk loop: fix order of cleaning up the queue and freeing the tagset nbd: use blk_mq_alloc_disk and blk_cleanup_disk block: add a flag to make put_disk on partially initalized disks safer nvme: use blk_mq_alloc_disk brd: convert to blk_alloc_disk/blk_cleanup_disk ubi: use blk_mq_alloc_disk and blk_cleanup_disk Dan Carpenter (1): blk-mq: fix an IS_ERR() vs NULL bug Li Lingfeng (1): nbd: fix uaf in nbd_open Luis Chamberlain (6): loop: add error handling support for add_disk() nbd: add error handling support for add_disk() nvme: add error handling support for add_disk() block/brd: add error handling support for add_disk() scsi: sr: Add error handling support for add_disk() mtd/ubi/block: add error handling support for add_disk() Wang Qing (1): nbd: fix order of cleaning up the queue and freeing the tagset Zhong Jinghua (2): mtd/ubi/block: Fix null pointer dereference issue in error path mtd/ubi/block: Fix uaf problem in ubiblock_cleanup include/linux/blk-mq.h | 12 +++++ include/linux/genhd.h | 23 +++++++++ block/blk-mq.c | 19 ++++++++ block/genhd.c | 42 +++++++++++++++- drivers/block/brd.c | 103 +++++++++++++++++---------------------- drivers/block/loop.c | 26 +++++----- drivers/block/nbd.c | 60 ++++++++++------------- drivers/mtd/ubi/block.c | 76 ++++++++++++++--------------- drivers/nvme/host/core.c | 41 ++++++++-------- drivers/scsi/sr.c | 7 ++- 10 files changed, 239 insertions(+), 170 deletions(-) -- 2.39.2

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[PATCH OLK-5.10] arm64: config: Disable CONFIG_ARM64_PBHA by default
by Wupeng Ma 09 Nov '23

09 Nov '23

From: Ma Wupeng <mawupeng1(a)huawei.com> hulk inclusion category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I7ZC0H -------------------------------- Disable feature PBHA for arm64 by default. Signed-off-by: Ma Wupeng <mawupeng1(a)huawei.com> --- arch/arm64/configs/openeuler_defconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/configs/openeuler_defconfig b/arch/arm64/configs/openeuler_defconfig index aa12c2a7ebaa..ea2452d5576d 100644 --- a/arch/arm64/configs/openeuler_defconfig +++ b/arch/arm64/configs/openeuler_defconfig @@ -479,7 +479,7 @@ CONFIG_ARM64_VHE=y CONFIG_ARM64_PMEM=y CONFIG_ARM64_RAS_EXTN=y CONFIG_ARM64_CNP=y -CONFIG_ARM64_PBHA=y +# CONFIG_ARM64_PBHA is not set # end of ARMv8.2 architectural features # -- 2.25.1

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[PATCH OLK-5.10 0/2] Fix memleak in disassociate_ctty()
by Yi Yang 09 Nov '23

09 Nov '23

Fix it by revert hulk patch and backport patch from mainline. Yi Yang (2): Revert "tty: fix pid memleak in disassociate_ctty()" tty: tty_jobctrl: fix pid memleak in disassociate_ctty() drivers/tty/tty_jobctrl.c | 29 +++++++++++------------------ 1 file changed, 11 insertions(+), 18 deletions(-) -- 2.25.1

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[PATCH openEuler-1.0-LTS 0/2] Fix memleak in disassociate_ctty()
by Yi Yang 09 Nov '23

09 Nov '23

Fix it by revert hulk patch and backport patch from mainline. Yi Yang (2): Revert "tty: fix pid memleak in disassociate_ctty()" tty: tty_jobctrl: fix pid memleak in disassociate_ctty() drivers/tty/tty_jobctrl.c | 29 +++++++++++------------------ 1 file changed, 11 insertions(+), 18 deletions(-) -- 2.25.1

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[PATCH OLK-5.10 00/20] Add error handle for driver
by Li Nan 09 Nov '23

09 Nov '23

Christoph Hellwig (9): block: add blk_alloc_disk and blk_cleanup_disk APIs blk-mq: add the blk_mq_alloc_disk APIs loop: use blk_mq_alloc_disk and blk_cleanup_disk loop: fix order of cleaning up the queue and freeing the tagset nbd: use blk_mq_alloc_disk and blk_cleanup_disk block: add a flag to make put_disk on partially initalized disks safer nvme: use blk_mq_alloc_disk brd: convert to blk_alloc_disk/blk_cleanup_disk ubi: use blk_mq_alloc_disk and blk_cleanup_disk Dan Carpenter (1): blk-mq: fix an IS_ERR() vs NULL bug Li Lingfeng (1): nbd: fix uaf in nbd_open Luis Chamberlain (6): loop: add error handling support for add_disk() nbd: add error handling support for add_disk() nvme: add error handling support for add_disk() block/brd: add error handling support for add_disk() scsi: sr: Add error handling support for add_disk() mtd/ubi/block: add error handling support for add_disk() Wang Qing (1): nbd: fix order of cleaning up the queue and freeing the tagset Zhong Jinghua (2): mtd/ubi/block: Fix null pointer dereference issue in error path mtd/ubi/block: Fix uaf problem in ubiblock_cleanup include/linux/blk-mq.h | 12 +++++ include/linux/genhd.h | 23 +++++++++ block/blk-mq.c | 19 ++++++++ block/genhd.c | 42 +++++++++++++++- drivers/block/brd.c | 103 +++++++++++++++++---------------------- drivers/block/loop.c | 26 +++++----- drivers/block/nbd.c | 60 ++++++++++------------- drivers/mtd/ubi/block.c | 76 ++++++++++++++--------------- drivers/nvme/host/core.c | 41 ++++++++-------- drivers/scsi/sr.c | 7 ++- 10 files changed, 239 insertions(+), 170 deletions(-) -- 2.39.2

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[PATCH openEuler-1.0-LTS v4 0/3] bugfix for CVE-2022-45884
by liwei 09 Nov '23

09 Nov '23

bugfix for CVE-2022-45884 Dinghao Liu (1): media: dvbdev: Fix memleak in dvb_register_device Fuqian Huang (1): media: media/dvb: Use kmemdup rather than duplicating its implementation Hyunwoo Kim (1): media: dvb-core: Fix use-after-free due to race at dvb_register_device() drivers/media/dvb-core/dvbdev.c | 86 ++++++++++++++++----- drivers/media/dvb-frontends/drx39xyj/drxj.c | 5 +- include/media/dvbdev.h | 15 ++++ 3 files changed, 82 insertions(+), 24 deletions(-) -- 2.25.1

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openEuler Kernel SIG双周例会
by openEuler conference 09 Nov '23

09 Nov '23

您好！ Kernel SIG 邀请您参加 2023-11-10 14:00 召开的Zoom会议(自动录制) 会议主题：openEuler Kernel SIG双周例会会议内容： 1. 进展update 2. 内容征集中（议题申报可回复邮件，或直接填入会议看板）会议链接：https://us06web.zoom.us/j/87016190729?pwd=QXivFoXObEngRNR23faQCqS1XGbrs3.1 会议纪要：https://etherpad.openeuler.org/p/Kernel-meetings 温馨提醒：建议接入会议后修改参会人的姓名，也可以使用您在gitee.com的ID 更多资讯尽在：https://openeuler.org/zh/ Hello! openEuler Kernel SIG invites you to attend the Zoom conference(auto recording) will be held at 2023-11-10 14:00, The subject of the conference is openEuler Kernel SIG双周例会, Summary: 1. 进展update 2. 内容征集中（议题申报可回复邮件，或直接填入会议看板） You can join the meeting at https://us06web.zoom.us/j/87016190729?pwd=QXivFoXObEngRNR23faQCqS1XGbrs3.1. Add topics at https://etherpad.openeuler.org/p/Kernel-meetings. Note: You are advised to change the participant name after joining the conference or use your ID at gitee.com. More information: https://openeuler.org/en/

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[PATCH openEuler-1.0-LTS] sched/fair: Refill bandwidth before scaling
by Xia Fukun 08 Nov '23

08 Nov '23

From: Huaixin Chang <changhuaixin(a)linux.alibaba.com> mainline inclusion from mainline-v6.5-rc7 commit 5a6d6a6ccb5f48ca8cf7c6d64ff83fd9c7999390 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8EUCE CVE: NA -------------------------------- In order to prevent possible hardlockup of sched_cfs_period_timer() loop, loop count is introduced to denote whether to scale quota and period or not. However, scale is done between forwarding period timer and refilling cfs bandwidth runtime, which means that period timer is forwarded with old "period" while runtime is refilled with scaled "quota". Move do_sched_cfs_period_timer() before scaling to solve this. Fixes: 2e8e19226398 ("sched/fair: Limit sched_cfs_period_timer() loop to avoid hard lockup") Signed-off-by: Huaixin Chang <changhuaixin(a)linux.alibaba.com> Signed-off-by: Peter Zijlstra (Intel) <peterz(a)infradead.org> Reviewed-by: Ben Segall <bsegall(a)google.com> Reviewed-by: Phil Auld <pauld(a)redhat.com> Link: https://lkml.kernel.org/r/20200420024421.22442-3-changhuaixin@linux.alibaba… Signed-off-by: Xia Fukun <xiafukun(a)huawei.com> --- kernel/sched/fair.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 1c78e2f29901..ccd2a060c2df 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -5099,6 +5099,8 @@ static enum hrtimer_restart sched_cfs_period_timer(struct hrtimer *timer) if (!overrun) break; + idle = do_sched_cfs_period_timer(cfs_b, overrun, flags); + if (++count > 3) { u64 new, old = ktime_to_ns(cfs_b->period); @@ -5128,8 +5130,6 @@ static enum hrtimer_restart sched_cfs_period_timer(struct hrtimer *timer) /* reset count so we don't come right back in here */ count = 0; } - - idle = do_sched_cfs_period_timer(cfs_b, overrun, flags); } if (idle) cfs_b->period_active = 0; -- 2.34.1

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