From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Zheyu Ma <zheyuma97@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH 5.4 49/58] isdn: mISDN: Fix sleeping function called from invalid context
Date: Mon, 25 Oct 2021 21:15:06 +0200 [thread overview]
Message-ID: <20211025190945.916599493@linuxfoundation.org> (raw)
In-Reply-To: <20211025190937.555108060@linuxfoundation.org>
From: Zheyu Ma <zheyuma97@gmail.com>
[ Upstream commit 6510e80a0b81b5d814e3aea6297ba42f5e76f73c ]
The driver can call card->isac.release() function from an atomic
context.
Fix this by calling this function after releasing the lock.
The following log reveals it:
[ 44.168226 ] BUG: sleeping function called from invalid context at kernel/workqueue.c:3018
[ 44.168941 ] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 5475, name: modprobe
[ 44.169574 ] INFO: lockdep is turned off.
[ 44.169899 ] irq event stamp: 0
[ 44.170160 ] hardirqs last enabled at (0): [<0000000000000000>] 0x0
[ 44.170627 ] hardirqs last disabled at (0): [<ffffffff814209ed>] copy_process+0x132d/0x3e00
[ 44.171240 ] softirqs last enabled at (0): [<ffffffff81420a1a>] copy_process+0x135a/0x3e00
[ 44.171852 ] softirqs last disabled at (0): [<0000000000000000>] 0x0
[ 44.172318 ] Preemption disabled at:
[ 44.172320 ] [<ffffffffa009b0a9>] nj_release+0x69/0x500 [netjet]
[ 44.174441 ] Call Trace:
[ 44.174630 ] dump_stack_lvl+0xa8/0xd1
[ 44.174912 ] dump_stack+0x15/0x17
[ 44.175166 ] ___might_sleep+0x3a2/0x510
[ 44.175459 ] ? nj_release+0x69/0x500 [netjet]
[ 44.175791 ] __might_sleep+0x82/0xe0
[ 44.176063 ] ? start_flush_work+0x20/0x7b0
[ 44.176375 ] start_flush_work+0x33/0x7b0
[ 44.176672 ] ? trace_irq_enable_rcuidle+0x85/0x170
[ 44.177034 ] ? kasan_quarantine_put+0xaa/0x1f0
[ 44.177372 ] ? kasan_quarantine_put+0xaa/0x1f0
[ 44.177711 ] __flush_work+0x11a/0x1a0
[ 44.177991 ] ? flush_work+0x20/0x20
[ 44.178257 ] ? lock_release+0x13c/0x8f0
[ 44.178550 ] ? __kasan_check_write+0x14/0x20
[ 44.178872 ] ? do_raw_spin_lock+0x148/0x360
[ 44.179187 ] ? read_lock_is_recursive+0x20/0x20
[ 44.179530 ] ? __kasan_check_read+0x11/0x20
[ 44.179846 ] ? do_raw_spin_unlock+0x55/0x900
[ 44.180168 ] ? ____kasan_slab_free+0x116/0x140
[ 44.180505 ] ? _raw_spin_unlock_irqrestore+0x41/0x60
[ 44.180878 ] ? skb_queue_purge+0x1a3/0x1c0
[ 44.181189 ] ? kfree+0x13e/0x290
[ 44.181438 ] flush_work+0x17/0x20
[ 44.181695 ] mISDN_freedchannel+0xe8/0x100
[ 44.182006 ] isac_release+0x210/0x260 [mISDNipac]
[ 44.182366 ] nj_release+0xf6/0x500 [netjet]
[ 44.182685 ] nj_remove+0x48/0x70 [netjet]
[ 44.182989 ] pci_device_remove+0xa9/0x250
Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/isdn/hardware/mISDN/netjet.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/isdn/hardware/mISDN/netjet.c b/drivers/isdn/hardware/mISDN/netjet.c
index 9e6aab04f9d6..8299defff55a 100644
--- a/drivers/isdn/hardware/mISDN/netjet.c
+++ b/drivers/isdn/hardware/mISDN/netjet.c
@@ -949,8 +949,8 @@ nj_release(struct tiger_hw *card)
nj_disable_hwirq(card);
mode_tiger(&card->bc[0], ISDN_P_NONE);
mode_tiger(&card->bc[1], ISDN_P_NONE);
- card->isac.release(&card->isac);
spin_unlock_irqrestore(&card->lock, flags);
+ card->isac.release(&card->isac);
release_region(card->base, card->base_s);
card->base_s = 0;
}
--
2.33.0
next prev parent reply other threads:[~2021-10-25 19:42 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-25 19:14 [PATCH 5.4 00/58] 5.4.156-rc1 review Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 01/58] parisc: math-emu: Fix fall-through warnings Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 02/58] net: switchdev: do not propagate bridge updates across bridges Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 03/58] tee: optee: Fix missing devices unregister during optee_remove Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 04/58] ARM: dts: at91: sama5d2_som1_ek: disable ISC node by default Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 05/58] xtensa: xtfpga: use CONFIG_USE_OF instead of CONFIG_OF Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 06/58] xtensa: xtfpga: Try software restart before simulating CPU reset Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 07/58] NFSD: Keep existing listeners on portlist error Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 08/58] dma-debug: fix sg checks in debug_dma_map_sg() Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 09/58] ASoC: wm8960: Fix clock configuration on slave mode Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 10/58] netfilter: ipvs: make global sysctl readonly in non-init netns Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 11/58] lan78xx: select CRC32 Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 12/58] net: dsa: lantiq_gswip: fix register definition Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 13/58] NIOS2: irqflags: rename a redefined register name Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 14/58] net: hns3: reset DWRR of unused tc to zero Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 15/58] net: hns3: add limit ets dwrr bandwidth cannot be 0 Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 16/58] net: hns3: disable sriov before unload hclge layer Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 17/58] net: stmmac: Fix E2E delay mechanism Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 18/58] net: enetc: fix ethtool counter name for PM0_TERR Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 19/58] can: rcar_can: fix suspend/resume Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 20/58] can: peak_usb: pcan_usb_fd_decode_status(): fix back to ERROR_ACTIVE state notification Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 21/58] can: peak_pci: peak_pci_remove(): fix UAF Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 22/58] can: j1939: j1939_tp_rxtimer(): fix errant alert in j1939_tp_rxtimer Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 23/58] can: j1939: j1939_netdev_start(): fix UAF for rx_kref of j1939_priv Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 24/58] can: j1939: j1939_xtp_rx_dat_one(): cancel session if receive TP.DT with error length Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 25/58] can: j1939: j1939_xtp_rx_rts_session_new(): abort TP less than 9 bytes Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 26/58] ceph: fix handling of "meta" errors Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 27/58] ocfs2: fix data corruption after conversion from inline format Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 28/58] ocfs2: mount fails with buffer overflow in strlen Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 29/58] elfcore: correct reference to CONFIG_UML Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 30/58] vfs: check fd has read access in kernel_read_file_from_fd() Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 31/58] ALSA: usb-audio: Provide quirk for Sennheiser GSP670 Headset Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 32/58] ALSA: hda/realtek: Add quirk for Clevo PC50HS Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 33/58] ASoC: DAPM: Fix missing kctl change notifications Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 34/58] audit: fix possible null-pointer dereference in audit_filter_rules Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 35/58] powerpc64/idle: Fix SP offsets when saving GPRs Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 36/58] KVM: PPC: Book3S HV: Fix stack handling in idle_kvm_start_guest() Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 37/58] KVM: PPC: Book3S HV: Make idle_kvm_start_guest() return 0 if it went to guest Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 38/58] powerpc/idle: Dont corrupt back chain when going idle Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 39/58] mm, slub: fix mismatch between reconstructed freelist depth and cnt Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 40/58] mm, slub: fix potential memoryleak in kmem_cache_open() Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 41/58] nfc: nci: fix the UAF of rf_conn_info object Greg Kroah-Hartman
2021-10-25 19:14 ` [PATCH 5.4 42/58] isdn: cpai: check ctr->cnr to avoid array index out of bound Greg Kroah-Hartman
2021-10-25 19:15 ` [PATCH 5.4 43/58] netfilter: Kconfig: use default y instead of m for bool config option Greg Kroah-Hartman
2021-10-25 19:15 ` [PATCH 5.4 44/58] selftests: netfilter: remove stray bash debug line Greg Kroah-Hartman
2021-10-25 19:15 ` [PATCH 5.4 45/58] gcc-plugins/structleak: add makefile var for disabling structleak Greg Kroah-Hartman
2021-10-25 19:15 ` [PATCH 5.4 46/58] btrfs: deal with errors when checking if a dir entry exists during log replay Greg Kroah-Hartman
2021-10-25 19:15 ` [PATCH 5.4 47/58] net: stmmac: add support for dwmac 3.40a Greg Kroah-Hartman
2021-10-25 19:15 ` [PATCH 5.4 48/58] ARM: dts: spear3xx: Fix gmac node Greg Kroah-Hartman
2021-10-25 19:15 ` Greg Kroah-Hartman [this message]
2021-10-25 19:15 ` [PATCH 5.4 50/58] platform/x86: intel_scu_ipc: Update timeout value in comment Greg Kroah-Hartman
2021-10-25 19:15 ` [PATCH 5.4 51/58] ALSA: hda: avoid write to STATESTS if controller is in reset Greg Kroah-Hartman
2021-10-25 19:15 ` [PATCH 5.4 52/58] Input: snvs_pwrkey - add clk handling Greg Kroah-Hartman
2021-10-25 19:15 ` [PATCH 5.4 53/58] scsi: core: Fix shost->cmd_per_lun calculation in scsi_add_host_with_dma() Greg Kroah-Hartman
2021-10-25 19:15 ` [PATCH 5.4 54/58] usbnet: sanity check for maxpacket Greg Kroah-Hartman
2021-10-25 19:15 ` [PATCH 5.4 55/58] net: mdiobus: Fix memory leak in __mdiobus_register Greg Kroah-Hartman
2021-10-25 19:15 ` [PATCH 5.4 56/58] tracing: Have all levels of checks prevent recursion Greg Kroah-Hartman
2021-10-25 19:15 ` [PATCH 5.4 57/58] ARM: 9122/1: select HAVE_FUTEX_CMPXCHG Greg Kroah-Hartman
2021-10-25 19:15 ` [PATCH 5.4 58/58] pinctrl: stm32: use valid pin identifier in stm32_pinctrl_resume() Greg Kroah-Hartman
2021-10-25 19:55 ` [PATCH 5.4 00/58] 5.4.156-rc1 review Florian Fainelli
2021-10-26 8:29 ` Naresh Kamboju
2021-10-26 17:26 ` Shuah Khan
2021-10-26 18:21 ` Sudip Mukherjee
2021-10-26 19:16 ` Guenter Roeck
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=20211025190945.916599493@linuxfoundation.org \
--to=gregkh@linuxfoundation.org \
--cc=davem@davemloft.net \
--cc=linux-kernel@vger.kernel.org \
--cc=sashal@kernel.org \
--cc=stable@vger.kernel.org \
--cc=zheyuma97@gmail.com \
/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).