From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, jean-luc malet <jeanluc.malet@gmail.com>,
Jan Kara <jack@suse.cz>
Subject: [PATCH 4.9 05/30] udf: Fix crash on IO error during truncate
Date: Tue, 26 Mar 2019 15:29:44 +0900 [thread overview]
Message-ID: <20190326042607.756454144@linuxfoundation.org> (raw)
In-Reply-To: <20190326042607.558087893@linuxfoundation.org>
4.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jan Kara <jack@suse.cz>
commit d3ca4651d05c0ff7259d087d8c949bcf3e14fb46 upstream.
When truncate(2) hits IO error when reading indirect extent block the
code just bugs with:
kernel BUG at linux-4.15.0/fs/udf/truncate.c:249!
...
Fix the problem by bailing out cleanly in case of IO error.
CC: stable@vger.kernel.org
Reported-by: jean-luc malet <jeanluc.malet@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/udf/truncate.c | 3 +++
1 file changed, 3 insertions(+)
--- a/fs/udf/truncate.c
+++ b/fs/udf/truncate.c
@@ -260,6 +260,9 @@ void udf_truncate_extents(struct inode *
epos.block = eloc;
epos.bh = udf_tread(sb,
udf_get_lb_pblock(sb, &eloc, 0));
+ /* Error reading indirect block? */
+ if (!epos.bh)
+ return;
if (elen)
indirect_ext_len =
(elen + sb->s_blocksize - 1) >>
next prev parent reply other threads:[~2019-03-26 6:47 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-26 6:29 [PATCH 4.9 00/30] 4.9.166-stable review Greg Kroah-Hartman
2019-03-26 6:29 ` [PATCH 4.9 01/30] mmc: pxamci: fix enum type confusion Greg Kroah-Hartman
2019-03-26 6:29 ` [PATCH 4.9 02/30] drm/vmwgfx: Dont double-free the mode stored in par->set_mode Greg Kroah-Hartman
2019-03-26 6:29 ` [PATCH 4.9 03/30] iommu/amd: fix sg->dma_address for sg->offset bigger than PAGE_SIZE Greg Kroah-Hartman
2019-03-26 6:29 ` [PATCH 4.9 04/30] libceph: wait for latest osdmap in ceph_monc_blacklist_add() Greg Kroah-Hartman
2019-03-26 6:29 ` Greg Kroah-Hartman [this message]
2019-03-26 6:29 ` [PATCH 4.9 06/30] mips: loongson64: lemote-2f: Add IRQF_NO_SUSPEND to "cascade" irqaction Greg Kroah-Hartman
2019-03-26 6:29 ` [PATCH 4.9 07/30] MIPS: Ensure ELF appended dtb is relocated Greg Kroah-Hartman
2019-03-26 6:29 ` [PATCH 4.9 08/30] MIPS: Fix kernel crash for R6 in jump label branch function Greg Kroah-Hartman
2019-03-26 6:29 ` [PATCH 4.9 09/30] futex: Ensure that futex address is aligned in handle_futex_death() Greg Kroah-Hartman
2019-03-26 6:29 ` [PATCH 4.9 10/30] objtool: Move objtool_file struct off the stack Greg Kroah-Hartman
2019-03-26 6:29 ` [PATCH 4.9 11/30] ext4: fix NULL pointer dereference while journal is aborted Greg Kroah-Hartman
2019-03-26 6:29 ` [PATCH 4.9 12/30] ext4: fix data corruption caused by unaligned direct AIO Greg Kroah-Hartman
2019-03-26 6:29 ` [PATCH 4.9 13/30] ext4: brelse all indirect buffer in ext4_ind_remove_space() Greg Kroah-Hartman
2019-03-26 6:29 ` [PATCH 4.9 14/30] media: v4l2-ctrls.c/uvc: zero v4l2_event Greg Kroah-Hartman
2019-03-26 6:29 ` [PATCH 4.9 15/30] Bluetooth: Fix decrementing reference count twice in releasing socket Greg Kroah-Hartman
2019-03-26 6:29 ` [PATCH 4.9 16/30] locking/lockdep: Add debug_locks check in __lock_downgrade() Greg Kroah-Hartman
2019-03-26 6:29 ` [PATCH 4.9 17/30] ALSA: hda - Record the current power state before suspend/resume calls Greg Kroah-Hartman
2019-03-26 6:29 ` [PATCH 4.9 18/30] ALSA: hda - Enforces runtime_resume after S3 and S4 for each codec Greg Kroah-Hartman
2019-03-26 6:29 ` [PATCH 4.9 19/30] tcp/dccp: drop SYN packets if accept queue is full Greg Kroah-Hartman
2019-03-26 6:29 ` [PATCH 4.9 20/30] serial: sprd: adjust TIMEOUT to a big value Greg Kroah-Hartman
2019-03-26 6:30 ` [PATCH 4.9 21/30] Hang/soft lockup in d_invalidate with simultaneous calls Greg Kroah-Hartman
2019-03-26 6:30 ` [PATCH 4.9 22/30] arm64: traps: disable irq in die() Greg Kroah-Hartman
2019-03-26 6:30 ` [PATCH 4.9 23/30] serial: sprd: clear timeout interrupt only rather than all interrupts Greg Kroah-Hartman
2019-03-26 6:30 ` [PATCH 4.9 24/30] lib/int_sqrt: optimize small argument Greg Kroah-Hartman
2019-03-26 6:30 ` [PATCH 4.9 25/30] USB: core: only clean up what we allocated Greg Kroah-Hartman
2019-03-30 17:18 ` Nathan Chancellor
2019-04-01 11:46 ` Greg Kroah-Hartman
2019-03-26 6:30 ` [PATCH 4.9 26/30] scsi: ufs: fix wrong command type of UTRD for UFSHCI v2.1 Greg Kroah-Hartman
2019-03-26 6:30 ` [PATCH 4.9 27/30] rtc: Fix overflow when converting time64_t to rtc_time Greg Kroah-Hartman
2019-03-26 6:30 ` [PATCH 4.9 28/30] pwm-backlight: Enable/disable the PWM before/after LCD enable toggle Greg Kroah-Hartman
2019-03-26 6:30 ` [PATCH 4.9 29/30] power: supply: charger-manager: Fix incorrect return value Greg Kroah-Hartman
2019-03-26 6:30 ` [PATCH 4.9 30/30] ath10k: avoid possible string overflow Greg Kroah-Hartman
2019-03-26 11:41 ` [PATCH 4.9 00/30] 4.9.166-stable review Naresh Kamboju
2019-03-26 12:03 ` kernelci.org bot
2019-03-26 15:18 ` Jon Hunter
2019-03-26 17:48 ` Guenter Roeck
2019-03-26 23:16 ` shuah
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