Saravanan Vajravel eca5cd9474 RDMA/srpt: Add a check for valid 'mad_agent' pointer ... When unregistering MAD agent, srpt module has a non-null check for 'mad_agent' pointer before invoking ib_unregister_mad_agent(). This check can pass if 'mad_agent' variable holds an error value. The 'mad_agent' can have an error value for a short window when srpt_add_one() and srpt_remove_one() is executed simultaneously. In srpt module, added a valid pointer check for 'sport->mad_agent' before unregistering MAD agent. This issue can hit when RoCE driver unregisters ib_device Stack Trace: ------------ BUG: kernel NULL pointer dereference, address: 000000000000004d PGD 145003067 P4D 145003067 PUD 2324fe067 PMD 0 Oops: 0002 [#1] PREEMPT SMP NOPTI CPU: 10 PID: 4459 Comm: kworker/u80:0 Kdump: loaded Tainted: P Hardware name: Dell Inc. PowerEdge R640/06NR82, BIOS 2.5.4 01/13/2020 Workqueue: bnxt_re bnxt_re_task [bnxt_re] RIP: 0010:_raw_spin_lock_irqsave+0x19/0x40 Call Trace: ib_unregister_mad_agent+0x46/0x2f0 [ib_core] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready ? __schedule+0x20b/0x560 srpt_unregister_mad_agent+0x93/0xd0 [ib_srpt] srpt_remove_one+0x20/0x150 [ib_srpt] remove_client_context+0x88/0xd0 [ib_core] bond0: (slave p2p1): link status definitely up, 100000 Mbps full duplex disable_device+0x8a/0x160 [ib_core] bond0: active interface up! ? kernfs_name_hash+0x12/0x80 (NULL device *): Bonding Info Received: rdev: 000000006c0b8247 __ib_unregister_device+0x42/0xb0 [ib_core] (NULL device *): Master: mode: 4 num_slaves:2 ib_unregister_device+0x22/0x30 [ib_core] (NULL device *): Slave: id: 105069936 name:p2p1 link:0 state:0 bnxt_re_stopqps_and_ib_uninit+0x83/0x90 [bnxt_re] bnxt_re_alloc_lag+0x12e/0x4e0 [bnxt_re] Fixes: a42d985bd5 ("ib_srpt: Initial SRP Target merge for v3.3-rc1") Reviewed-by: Selvin Xavier <selvin.xavier@broadcom.com> Reviewed-by: Kashyap Desai <kashyap.desai@broadcom.com> Signed-off-by: Saravanan Vajravel <saravanan.vajravel@broadcom.com> Link: https://lore.kernel.org/r/20230406042549.507328-1-saravanan.vajravel@broadcom.com Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Leon Romanovsky <leon@kernel.org>		2023-04-09 13:04:26 +03:00
..
accel	accel: Build sub-directories based on config options	2023-03-13 12:44:53 +01:00
accessibility	…
acpi	Merge branches 'acpi-video', 'acpi-x86', 'acpi-tools' and 'acpi-docs'	2023-03-17 16:44:41 +01:00
amba	…
android	Char/Misc and other driver subsystem changes for 6.3-rc1	2023-02-24 12:47:33 -08:00
ata	ata: pata_parport: fix memory leaks	2023-03-16 16:54:38 +09:00
atm	…
auxdisplay	…
base	A set of updates for the interrupt susbsystem:	2023-03-05 11:19:16 -08:00
bcma	…
block	block: sunvdc: add check for mdesc_grab() returning NULL	2023-03-15 08:48:58 -06:00
bluetooth	…
bus	ARM: SoC drivers for 6.3	2023-02-27 10:04:49 -08:00
cdrom	…
char	tpm: disable hwrng for fTPM on some AMD designs	2023-03-12 23:28:10 +02:00
clk	clk: k210: remove an implicit 64-bit division	2023-03-06 14:41:20 -08:00
clocksource	Updates for timekeeping, timers and clockevent/source drivers:	2023-02-21 09:45:13 -08:00
comedi	…
connector	…
counter	…
cpufreq	More power management updates for 6.3-rc1	2023-03-03 10:30:58 -08:00
cpuidle	cpuidle: psci: Iterate backwards over list in psci_pd_remove()	2023-03-07 14:04:13 +01:00
crypto	This push fixes a regression in the caam driver.	2023-03-05 11:32:30 -08:00
cxl	cxl for v6.3	2023-02-25 09:19:23 -08:00
dax	cxl for v6.3	2023-02-25 09:19:23 -08:00
dca	…
devfreq	…
dio	…
dma	dmaengine updates for v6.3	2023-02-24 17:18:54 -08:00
dma-buf	dma-buf: make kobj_type structure constant	2023-02-17 09:16:34 +01:00
edac	- Add a driver for the RAS functionality on Xilinx's on chip memory	2023-02-21 08:10:03 -08:00
eisa	…
extcon	…
firewire	Driver core changes for 6.3-rc1	2023-02-24 12:58:55 -08:00
firmware	firmware: xilinx: don't make a sleepable memory allocation from an atomic context	2023-03-09 18:00:31 +01:00
fpga	Driver core changes for 6.3-rc1	2023-02-24 12:58:55 -08:00
fsi	…
gnss	…
gpio	ACPI: x86: Introduce an acpi_quirk_skip_gpio_event_handlers() helper	2023-03-07 14:15:10 +01:00
gpu	drm/ttm: drop extra ttm_bo_put in ttm_bo_cleanup_refs	2023-03-17 16:06:58 +10:00
greybus	…
hid	for-linus-2023030901	2023-03-09 10:17:23 -08:00
hsi	Driver core changes for 6.3-rc1	2023-02-24 12:58:55 -08:00
hte	…
hv	Driver core changes for 6.3-rc1	2023-02-24 12:58:55 -08:00
hwmon	hwmon: (ltc2992) Set `can_sleep` flag for GPIO chip	2023-03-15 19:15:00 -07:00
hwspinlock	…
hwtracing	Driver core changes for 6.3-rc1	2023-02-24 12:58:55 -08:00
i2c	i2c: dev: Fix bus callback return values	2023-03-09 22:07:52 +01:00
i3c	I3C for 6.3	2023-02-28 16:05:01 -08:00
idle	Power management updates for 6.3-rc1	2023-02-21 12:13:58 -08:00
iio	Char/Misc and other driver subsystem changes for 6.3-rc1	2023-02-24 12:47:33 -08:00
infiniband	RDMA/srpt: Add a check for valid 'mad_agent' pointer	2023-04-09 13:04:26 +03:00
input	ARM: SoC drivers for 6.3	2023-02-27 10:04:49 -08:00
interconnect	interconnect: exynos: drop redundant link destroy	2023-03-13 21:13:48 +02:00
iommu	ARM: SoC drivers for 6.3	2023-02-27 10:04:49 -08:00
ipack	Driver core changes for 6.3-rc1	2023-02-24 12:58:55 -08:00
irqchip	ARM:	2023-02-25 11:30:21 -08:00
isdn	…
leds	- Remove Drivers	2023-02-23 15:09:31 -08:00
macintosh	powerpc updates for 6.3	2023-02-25 11:00:06 -08:00
mailbox	mailbox: qcom-apcs-ipc: add IPQ5332 APSS clock support	2023-02-23 14:47:13 -06:00
mcb	…
md	Merge branch 'md-fixes' of https://git.kernel.org/pub/scm/linux/kernel/git/song/md into block-6.3	2023-03-15 12:18:07 -06:00
media	media: m5mols: fix off-by-one loop termination error	2023-03-18 11:07:15 -07:00
memory	memory: tegra30-emc: fix interconnect registration race	2023-03-13 21:13:49 +02:00
memstick	MMC core:	2023-02-27 09:47:26 -08:00
message	…
mfd	Including fixes from wireless and netfilter.	2023-02-27 14:05:08 -08:00
misc	misc: ad525x_dpot-i2c: Convert to i2c's .probe_new()	2023-03-09 21:58:45 +01:00
mmc	mmc: dw_mmc-starfive: Fix initialization of prev_err	2023-03-09 15:33:51 +01:00
most	…
mtd	* regression fix for the notifier handling of the I2C core	2023-03-11 09:24:05 -08:00
mux	…
net	RDMA/bnxt_re: Update HW interface headers	2023-04-04 09:17:21 +03:00
nfc	nfc: st-nci: Fix use after free bug in ndlc_remove due to race condition	2023-03-15 00:28:23 -07:00
ntb	…
nubus	…
nvdimm	virtio,vhost,vdpa: features, fixes	2023-02-25 11:48:02 -08:00
nvme	nvme fixes for Linux 6.3	2023-03-16 07:01:48 -06:00
nvmem	nvmem: core: return -ENOENT if nvmem cell is not found	2023-03-10 10:55:49 +01:00
of	IOMMU Updates for Linux v6.3:	2023-02-24 13:40:13 -08:00
opp	OPP: fix error checking in opp_migrate_dentry()	2023-02-16 13:48:53 +01:00
parisc	…
parport	Char/Misc and other driver subsystem changes for 6.3-rc1	2023-02-24 12:47:33 -08:00
pci	PCI: s390: Fix use-after-free of PCI resources with per-function hotplug	2023-03-13 09:15:11 +01:00
pcmcia	Driver core changes for 6.3-rc1	2023-02-24 12:58:55 -08:00
peci	…
perf	RISC-V Patches for the 6.3 Merge Window, Part 2	2023-03-03 09:32:51 -08:00
phy	ARM: SoC drivers for 6.3	2023-02-27 10:04:49 -08:00
pinctrl	ARM: SoC drivers for 6.3	2023-02-27 10:04:49 -08:00
platform	platform: mellanox: mlx-platform: Initialize shift variable to 0	2023-03-07 12:08:30 +01:00
pnp	…
power	power supply changes for the v6.3 series (part 2)	2023-03-03 16:33:28 -08:00
powercap	More power management updates for 6.3-rc1	2023-03-03 10:30:58 -08:00
pps	…
ps3	…
ptp	ptp: vclock: use mutex to fix "sleep on atomic" bug	2023-02-22 21:23:48 -08:00
pwm	pwm: dwc: Use devm_pwmchip_add()	2023-02-20 12:26:35 +01:00
rapidio	…
ras	…
regulator	regulator: Fixes for v6.3	2023-03-02 09:21:25 -08:00
remoteproc	ARM: SoC drivers for 6.3	2023-02-27 10:04:49 -08:00
reset	…
rpmsg	rpmsg updates for v6.3	2023-02-26 12:10:28 -08:00
rtc	RTC for 6.3	2023-03-03 09:15:50 -08:00
s390	SCSI misc on 20230303	2023-03-03 14:41:50 -08:00
sbus	…
scsi	SCSI fixes on 20230316	2023-03-17 09:30:57 -07:00
sh	sh updates for v6.3	2023-03-01 09:44:22 -08:00
siox	…
slimbus	…
soc	ARM: SoC drivers for 6.3	2023-02-27 10:04:49 -08:00
soundwire	soundwire updates for 6.3	2023-02-24 17:29:52 -08:00
spi	spi: Fixes for v6.3	2023-03-02 09:25:38 -08:00
spmi	…
ssb	…
staging	staging: r8188eu: delete driver	2023-03-09 10:06:28 +01:00
target	scsi: target: iscsi: Fix an error message in iscsi_check_key()	2023-03-06 16:50:42 -05:00
tc	…
tee	Driver core changes for 6.3-rc1	2023-02-24 12:58:55 -08:00
thermal	thermal: intel: int340x: processor_thermal: Fix deadlock	2023-03-03 20:34:49 +01:00
thunderbolt	Driver core changes for 6.3-rc1	2023-02-24 12:58:55 -08:00
tty	TTY/Serial driver fixes for 6.3-rc3	2023-03-19 10:09:58 -07:00
ufs	scsi: ufs: mcq: Use active_reqs to check busy in clock scaling	2023-03-09 21:09:28 -05:00
uio	- Daniel Verkamp has contributed a memfd series ("mm/memfd: add	2023-02-23 17:09:35 -08:00
usb	phy-for-6.3	2023-02-24 17:22:11 -08:00
vdpa	vdpa_sim: set last_used_idx as last_avail_idx in vdpasim_queue_ready	2023-03-13 02:29:12 -04:00
vfio	VFIO updates for v6.3-rc1	2023-02-25 11:52:57 -08:00
vhost	vhost-vdpa: free iommu domain after last use during cleanup	2023-03-13 02:29:11 -04:00
video	fbdev updates for kernel 6.3-rc3:	2023-03-18 16:01:34 -07:00
virt	virt/coco/sev-guest: Add throttling awareness	2023-03-13 13:29:27 +01:00
virtio	virtio,vhost,vdpa: features, fixes	2023-02-25 11:48:02 -08:00
vlynq	…
w1	w1: ds2482: Convert to i2c's .probe_new()	2023-03-09 21:58:57 +01:00
watchdog	linux-watchdog 6.3-rc1 tag	2023-03-02 11:12:01 -08:00
xen	xen: branch for v6.3-rc3	2023-03-17 10:45:49 -07:00
zorro	…
Kconfig	…
Makefile	Kbuild updates for v6.3	2023-02-26 11:53:25 -08:00