From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Masami Hiramatsu <mhiramat@kernel.org>,
Sumanth Korikkar <sumanthk@linux.ibm.com>,
Thomas Richter <tmricht@linux.ibm.com>,
Arnaldo Carvalho de Melo <acme@redhat.com>,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH 4.14 42/50] perf probe: Fix to die_entrypc() returns error correctly
Date: Tue, 1 Dec 2020 09:53:41 +0100 [thread overview]
Message-ID: <20201201084650.223717431@linuxfoundation.org> (raw)
In-Reply-To: <20201201084644.803812112@linuxfoundation.org>
From: Masami Hiramatsu <mhiramat@kernel.org>
[ Upstream commit ab4200c17ba6fe71d2da64317aae8a8aa684624c ]
Fix die_entrypc() to return error correctly if the DIE has no
DW_AT_ranges attribute. Since dwarf_ranges() will treat the case as an
empty ranges and return 0, we have to check it by ourselves.
Fixes: 91e2f539eeda ("perf probe: Fix to show function entry line as probe-able")
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Link: http://lore.kernel.org/lkml/160645612634.2824037.5284932731175079426.stgit@devnote2
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
tools/perf/util/dwarf-aux.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/tools/perf/util/dwarf-aux.c b/tools/perf/util/dwarf-aux.c
index 289ef63208fb6..7514aa9c68c99 100644
--- a/tools/perf/util/dwarf-aux.c
+++ b/tools/perf/util/dwarf-aux.c
@@ -332,6 +332,7 @@ bool die_is_func_def(Dwarf_Die *dw_die)
int die_entrypc(Dwarf_Die *dw_die, Dwarf_Addr *addr)
{
Dwarf_Addr base, end;
+ Dwarf_Attribute attr;
if (!addr)
return -EINVAL;
@@ -339,6 +340,13 @@ int die_entrypc(Dwarf_Die *dw_die, Dwarf_Addr *addr)
if (dwarf_entrypc(dw_die, addr) == 0)
return 0;
+ /*
+ * Since the dwarf_ranges() will return 0 if there is no
+ * DW_AT_ranges attribute, we should check it first.
+ */
+ if (!dwarf_attr(dw_die, DW_AT_ranges, &attr))
+ return -ENOENT;
+
return dwarf_ranges(dw_die, 0, &base, addr, &end) < 0 ? -ENOENT : 0;
}
--
2.27.0
next prev parent reply other threads:[~2020-12-01 8:59 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-01 8:52 [PATCH 4.14 00/50] 4.14.210-rc1 review Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 01/50] perf event: Check ref_reloc_sym before using it Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 02/50] mm/userfaultfd: do not access vma->vm_mm after calling handle_userfault() Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 03/50] btrfs: fix lockdep splat when reading qgroup config on mount Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 04/50] wireless: Use linux/stddef.h instead of stddef.h Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 05/50] PCI: Add device even if driver attach failed Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 06/50] btrfs: tree-checker: Enhance chunk checker to validate chunk profile Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 07/50] btrfs: adjust return values of btrfs_inode_by_name Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 08/50] btrfs: inode: Verify inode mode to avoid NULL pointer dereference Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 09/50] KVM: x86: Fix split-irqchip vs interrupt injection window request Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 10/50] arm64: pgtable: Fix pte_accessible() Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 11/50] arm64: pgtable: Ensure dirty bit is preserved across pte_wrprotect() Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 12/50] ALSA: hda/hdmi: Use single mutex unlock in error paths Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 13/50] ALSA: hda/hdmi: fix incorrect locking in hdmi_pcm_close Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 14/50] HID: cypress: Support Varmilo Keyboards media hotkeys Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 15/50] Input: i8042 - allow insmod to succeed on devices without an i8042 controller Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 16/50] HID: hid-sensor-hub: Fix issue with devices with no report ID Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 17/50] dmaengine: xilinx_dma: use readl_poll_timeout_atomic variant Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 18/50] x86/xen: dont unbind uninitialized lock_kicker_irq Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 19/50] HID: Add Logitech Dinovo Edge battery quirk Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 20/50] proc: dont allow async path resolution of /proc/self components Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 21/50] nvme: free sq/cq dbbuf pointers when dbbuf set fails Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 22/50] dmaengine: pl330: _prep_dma_memcpy: Fix wrong burst size Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 23/50] scsi: libiscsi: Fix NOP race condition Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 24/50] scsi: target: iscsi: Fix cmd abort fabric stop race Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 25/50] perf/x86: fix sysfs type mismatches Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 26/50] phy: tegra: xusb: Fix dangling pointer on probe failure Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 27/50] batman-adv: set .owner to THIS_MODULE Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 28/50] scsi: ufs: Fix race between shutdown and runtime resume flow Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 29/50] bnxt_en: fix error return code in bnxt_init_one() Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 30/50] bnxt_en: fix error return code in bnxt_init_board() Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 31/50] video: hyperv_fb: Fix the cache type when mapping the VRAM Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 32/50] bnxt_en: Release PCI regions when DMA mask setup fails during probe Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 33/50] IB/mthca: fix return value of error branch in mthca_init_cq() Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 34/50] nfc: s3fwrn5: use signed integer for parsing GPIO numbers Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 35/50] net: ena: set initial DMA width to avoid intel iommu issue Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 36/50] ibmvnic: fix NULL pointer dereference in reset_sub_crq_queues Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 37/50] ibmvnic: fix NULL pointer dereference in ibmvic_reset_crq Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 38/50] efivarfs: revert "fix memory leak in efivarfs_create()" Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 39/50] can: gs_usb: fix endianess problem with candleLight firmware Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 40/50] platform/x86: toshiba_acpi: Fix the wrong variable assignment Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 41/50] can: m_can: fix nominal bitiming tseg2 min for version >= 3.1 Greg Kroah-Hartman
2020-12-01 8:53 ` Greg Kroah-Hartman [this message]
2020-12-01 8:53 ` [PATCH 4.14 43/50] USB: core: Change %pK for __user pointers to %px Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 44/50] usb: gadget: f_midi: Fix memleak in f_midi_alloc Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 45/50] usb: gadget: Fix memleak in gadgetfs_fill_super Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 46/50] x86/speculation: Fix prctl() when spectre_v2_user={seccomp,prctl},ibpb Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 47/50] x86/resctrl: Remove superfluous kernfs_get() calls to prevent refcount leak Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 48/50] x86/resctrl: Add necessary kernfs_put() " Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 49/50] USB: core: add endpoint-blacklist quirk Greg Kroah-Hartman
2020-12-01 8:53 ` [PATCH 4.14 50/50] USB: core: Fix regression in Hercules audio card Greg Kroah-Hartman
2020-12-01 21:39 ` [PATCH 4.14 00/50] 4.14.210-rc1 review Guenter Roeck
2020-12-02 6:04 ` Naresh Kamboju
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