6eaa34fe07
- Resolves: CVE-2024-45779 CVE-2024-45778 CVE-2025-1118 - Resolves: CVE-2025-0677 CVE-2024-45782 CVE-2025-0690 - Resolves: CVE-2024-45783 CVE-2025-0624 CVE-2024-45776 - Resolves: CVE-2025-0622 CVE-2024-45774 CVE-2024-45775 - Resolves: CVE-2024-45781 CVE-2024-45780 - Resolves: #RHEL-79700 - Resolves: #RHEL-79341 - Resolves: #RHEL-79875 - Resolves: #RHEL-79849 - Resolves: #RHEL-79707 - Resolves: #RHEL-79857 - Resolves: #RHEL-79709 - Resolves: #RHEL-79846 - Resolves: #RHEL-75737 - Resolves: #RHEL-79713 - Resolves: #RHEL-73785 - Resolves: #RHEL-73787 - Resolves: #RHEL-79704 - Resolves: #RHEL-79702 Signed-off-by: Nicolas Frayer <nfrayer@redhat.com>
89 lines
2.9 KiB
Diff
89 lines
2.9 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Lidong Chen <lidong.chen@oracle.com>
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Date: Wed, 22 Jan 2025 07:17:01 +0000
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Subject: [PATCH] fs/zfs: Check if returned pointer for allocated memory is
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NULL
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When using grub_malloc() or grub_zalloc(), these functions can fail if
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we are out of memory. After allocating memory we should check if these
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functions returned NULL and handle this error if they did.
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Signed-off-by: Lidong Chen <lidong.chen@oracle.com>
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Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
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---
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grub-core/fs/zfs/zfs.c | 26 ++++++++++++++++++++++++++
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1 file changed, 26 insertions(+)
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diff --git a/grub-core/fs/zfs/zfs.c b/grub-core/fs/zfs/zfs.c
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index 913046ba9..9123b5682 100644
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--- a/grub-core/fs/zfs/zfs.c
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+++ b/grub-core/fs/zfs/zfs.c
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@@ -612,6 +612,8 @@ zfs_fetch_nvlist (struct grub_zfs_device_desc *diskdesc, char **nvlist)
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return grub_error (GRUB_ERR_BUG, "member drive unknown");
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*nvlist = grub_malloc (VDEV_PHYS_SIZE);
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+ if (!*nvlist)
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+ return grub_errno;
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/* Read in the vdev name-value pair list (112K). */
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err = grub_disk_read (diskdesc->dev->disk, diskdesc->vdev_phys_sector, 0,
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@@ -723,6 +725,11 @@ fill_vdev_info_real (struct grub_zfs_data *data,
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fill->children = grub_calloc (fill->n_children,
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sizeof (fill->children[0]));
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+ if (!fill->children)
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+ {
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+ grub_free (type);
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+ return grub_errno;
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+ }
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}
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for (i = 0; i < nelm; i++)
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@@ -2453,6 +2460,11 @@ fzap_iterate (dnode_end_t * zap_dnode, zap_phys_t * zap,
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return grub_errno;
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}
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buf = grub_malloc (sz);
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+ if (!buf)
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+ {
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+ grub_free (l);
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+ return grub_errno;
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+ }
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if (zap_leaf_array_get (l, endian, blksft,
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grub_zfs_to_cpu16 (le->le_name_chunk,
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endian),
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@@ -2468,6 +2480,12 @@ fzap_iterate (dnode_end_t * zap_dnode, zap_phys_t * zap,
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val_length = ((int) le->le_value_length
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* (int) le->le_int_size);
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val = grub_malloc (grub_zfs_to_cpu16 (val_length, endian));
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+ if (!val)
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+ {
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+ grub_free (l);
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+ grub_free (buf);
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+ return grub_errno;
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+ }
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if (zap_leaf_array_get (l, endian, blksft,
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grub_zfs_to_cpu16 (le->le_value_chunk,
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endian),
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@@ -3699,6 +3717,11 @@ zfs_mount (grub_device_t dev)
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data->n_devices_allocated = 16;
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data->devices_attached = grub_calloc (data->n_devices_allocated,
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sizeof (data->devices_attached[0]));
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+ if (!data->devices_attached)
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+ {
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+ grub_free (data);
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+ return NULL;
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+ }
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data->n_devices_attached = 0;
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err = scan_disk (dev, data, 1, &inserted);
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if (err)
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@@ -4225,6 +4248,9 @@ iterate_zap_snap (const char *name, grub_uint64_t val,
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return grub_error (GRUB_ERR_OUT_OF_RANGE, N_("name length overflow"));
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name2 = grub_malloc (sz);
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+ if (!name2)
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+ return grub_errno;
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+
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name2[0] = '@';
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grub_memcpy (name2 + 1, name, grub_strlen (name) + 1);
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ret = ctx->hook (name2, &info, ctx->hook_data);
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