From: Marcin Krol Date: Tue, 30 Aug 2022 00:33:27 +0000 (+0200) Subject: - missing patches X-Git-Url: https://git.tld-linux.org/?a=commitdiff_plain;h=253a7993479403265235e3425e199c4da5242855;p=packages%2Fgrub2.git - missing patches --- diff --git a/0193-fs-xfs-Fix-unreadable-filesystem-with-v4-superblock.patch b/0193-fs-xfs-Fix-unreadable-filesystem-with-v4-superblock.patch new file mode 100644 index 0000000..7fc40f1 --- /dev/null +++ b/0193-fs-xfs-Fix-unreadable-filesystem-with-v4-superblock.patch @@ -0,0 +1,118 @@ +From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 +From: Erwan Velu +Date: Wed, 25 Aug 2021 15:31:52 +0200 +Subject: [PATCH] fs/xfs: Fix unreadable filesystem with v4 superblock + +The commit 8b1e5d193 (fs/xfs: Add bigtime incompat feature support) +introduced the bigtime support by adding some features in v3 inodes. +This change extended grub_xfs_inode struct by 76 bytes but also changed +the computation of XFS_V2_INODE_SIZE and XFS_V3_INODE_SIZE. Prior this +commit, XFS_V2_INODE_SIZE was 100 bytes. After the commit it's 84 bytes +XFS_V2_INODE_SIZE becomes 16 bytes too small. + +As a result, the data structures aren't properly aligned and the GRUB +generates "attempt to read or write outside of partition" errors when +trying to read the XFS filesystem: + + GNU GRUB version 2.11 + .... + grub> set debug=efi,gpt,xfs + grub> insmod part_gpt + grub> ls (hd0,gpt1)/ + partmap/gpt.c:93: Read a valid GPT header + partmap/gpt.c:115: GPT entry 0: start=4096, length=1953125 + fs/xfs.c:931: Reading sb + fs/xfs.c:270: Validating superblock + fs/xfs.c:295: XFS v4 superblock detected + fs/xfs.c:962: Reading root ino 128 + fs/xfs.c:515: Reading inode (128) - 64, 0 + fs/xfs.c:515: Reading inode (739521961424144223) - 344365866970255880, 3840 + error: attempt to read or write outside of partition. + +This commit change the XFS_V2_INODE_SIZE computation by subtracting 76 +bytes instead of 92 bytes from the actual size of grub_xfs_inode struct. +This 76 bytes value comes from added members: + 20 grub_uint8_t unused5 + 1 grub_uint64_t flags2 + 48 grub_uint8_t unused6 + +This patch explicitly splits the v2 and v3 parts of the structure. +The unused4 is still ending of the v2 structures and the v3 starts +at unused5. Thanks to this we will avoid future corruptions of v2 +or v3 inodes. + +The XFS_V2_INODE_SIZE is returning to its expected size and the +filesystem is back to a readable state: + + GNU GRUB version 2.11 + .... + grub> set debug=efi,gpt,xfs + grub> insmod part_gpt + grub> ls (hd0,gpt1)/ + partmap/gpt.c:93: Read a valid GPT header + partmap/gpt.c:115: GPT entry 0: start=4096, length=1953125 + fs/xfs.c:931: Reading sb + fs/xfs.c:270: Validating superblock + fs/xfs.c:295: XFS v4 superblock detected + fs/xfs.c:962: Reading root ino 128 + fs/xfs.c:515: Reading inode (128) - 64, 0 + fs/xfs.c:515: Reading inode (128) - 64, 0 + fs/xfs.c:931: Reading sb + fs/xfs.c:270: Validating superblock + fs/xfs.c:295: XFS v4 superblock detected + fs/xfs.c:962: Reading root ino 128 + fs/xfs.c:515: Reading inode (128) - 64, 0 + fs/xfs.c:515: Reading inode (128) - 64, 0 + fs/xfs.c:515: Reading inode (128) - 64, 0 + fs/xfs.c:515: Reading inode (131) - 64, 768 + efi/ fs/xfs.c:515: Reading inode (3145856) - 1464904, 0 + grub2/ fs/xfs.c:515: Reading inode (132) - 64, 1024 + grub/ fs/xfs.c:515: Reading inode (139) - 64, 2816 + grub> + +Fixes: 8b1e5d193 (fs/xfs: Add bigtime incompat feature support) + +Signed-off-by: Erwan Velu +Tested-by: Carlos Maiolino +Reviewed-by: Daniel Kiper +(cherry picked from commit a4b495520e4dc41a896a8b916a64eda9970c50ea) +--- + grub-core/fs/xfs.c | 14 ++++++++++---- + 1 file changed, 10 insertions(+), 4 deletions(-) + +diff --git a/grub-core/fs/xfs.c b/grub-core/fs/xfs.c +index 0f524c3a8a..e3816d1ec4 100644 +--- a/grub-core/fs/xfs.c ++++ b/grub-core/fs/xfs.c +@@ -192,6 +192,11 @@ struct grub_xfs_time_legacy + grub_uint32_t nanosec; + } GRUB_PACKED; + ++/* ++ * The struct grub_xfs_inode layout was taken from the ++ * struct xfs_dinode_core which is described here: ++ * https://mirrors.edge.kernel.org/pub/linux/utils/fs/xfs/docs/xfs_filesystem_structure.pdf ++ */ + struct grub_xfs_inode + { + grub_uint8_t magic[2]; +@@ -208,14 +213,15 @@ struct grub_xfs_inode + grub_uint32_t nextents; + grub_uint16_t unused3; + grub_uint8_t fork_offset; +- grub_uint8_t unused4[37]; ++ grub_uint8_t unused4[17]; /* Last member of inode v2. */ ++ grub_uint8_t unused5[20]; /* First member of inode v3. */ + grub_uint64_t flags2; +- grub_uint8_t unused5[48]; ++ grub_uint8_t unused6[48]; /* Last member of inode v3. */ + } GRUB_PACKED; + + #define XFS_V3_INODE_SIZE sizeof(struct grub_xfs_inode) +-/* Size of struct grub_xfs_inode until fork_offset (included). */ +-#define XFS_V2_INODE_SIZE (XFS_V3_INODE_SIZE - 92) ++/* Size of struct grub_xfs_inode v2, up to unused4 member included. */ ++#define XFS_V2_INODE_SIZE (XFS_V3_INODE_SIZE - 76) + + struct grub_xfs_dirblock_tail + { diff --git a/0268-grub_fs_probe-dprint-errors-from-filesystems.patch b/0268-grub_fs_probe-dprint-errors-from-filesystems.patch new file mode 100644 index 0000000..1455ae4 --- /dev/null +++ b/0268-grub_fs_probe-dprint-errors-from-filesystems.patch @@ -0,0 +1,43 @@ +From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 +From: Robbie Harwood +Date: Fri, 15 Jul 2022 15:39:41 -0400 +Subject: [PATCH] grub_fs_probe(): dprint errors from filesystems + +When filesystem detection fails, all that's currently debug-logged is a +series of messages like: + + grub-core/kern/fs.c:56:fs: Detecting ntfs... + grub-core/kern/fs.c:76:fs: ntfs detection failed. + +repeated for each filesystem. Any messages provided to grub_error() by +the filesystem are lost, and one has to break out gdb to figure out what +went wrong. + +With this change, one instead sees: + + grub-core/kern/fs.c:56:fs: Detecting fat... + grub-core/osdep/hostdisk.c:357:hostdisk: reusing open device + `/path/to/device' + grub-core/kern/fs.c:77:fs: error: invalid modification timestamp for /. + grub-core/kern/fs.c:79:fs: fat detection failed. + +in the debug prints. + +Signed-off-by: Robbie Harwood +(cherry picked from commit 838c79d658797d0662ee7f9e033e38ee88059e02) +--- + grub-core/kern/fs.c | 1 + + 1 file changed, 1 insertion(+) + +diff --git a/grub-core/kern/fs.c b/grub-core/kern/fs.c +index c698295bcb..b58e2ae1d2 100644 +--- a/grub-core/kern/fs.c ++++ b/grub-core/kern/fs.c +@@ -74,6 +74,7 @@ grub_fs_probe (grub_device_t device) + if (grub_errno == GRUB_ERR_NONE) + return p; + ++ grub_dprintf ("fs", _("error: %s.\n"), grub_errmsg); + grub_error_push (); + grub_dprintf ("fs", "%s detection failed.\n", p->name); + grub_error_pop ();