release 6.14.3
This commit is contained in:
@@ -29,7 +29,7 @@ Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
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MODULE_SOFTDEP("pre: blake2b-256");
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--- a/fs/jbd2/journal.c
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+++ b/fs/jbd2/journal.c
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@@ -3159,6 +3159,7 @@ static void __exit journal_exit(void)
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@@ -3158,6 +3158,7 @@ static void __exit journal_exit(void)
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MODULE_DESCRIPTION("Generic filesystem journal-writing module");
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MODULE_LICENSE("GPL");
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84
debian/patches/bugfix/all/hfs-hfsplus-fix-slab-out-of-bounds-in-hfs_bnode_read.patch
vendored
Normal file
84
debian/patches/bugfix/all/hfs-hfsplus-fix-slab-out-of-bounds-in-hfs_bnode_read.patch
vendored
Normal file
@@ -0,0 +1,84 @@
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From: Vasiliy Kovalev <kovalev@altlinux.org>
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Date: Sat, 19 Oct 2024 22:13:03 +0300
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Subject: hfs/hfsplus: fix slab-out-of-bounds in hfs_bnode_read_key
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Origin: https://git.kernel.org/linus/bb5e07cb927724e0b47be371fa081141cfb14414
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Syzbot reported an issue in hfs subsystem:
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BUG: KASAN: slab-out-of-bounds in memcpy_from_page include/linux/highmem.h:423 [inline]
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BUG: KASAN: slab-out-of-bounds in hfs_bnode_read fs/hfs/bnode.c:35 [inline]
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BUG: KASAN: slab-out-of-bounds in hfs_bnode_read_key+0x314/0x450 fs/hfs/bnode.c:70
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Write of size 94 at addr ffff8880123cd100 by task syz-executor237/5102
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Call Trace:
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<TASK>
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__dump_stack lib/dump_stack.c:94 [inline]
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dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
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print_address_description mm/kasan/report.c:377 [inline]
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print_report+0x169/0x550 mm/kasan/report.c:488
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kasan_report+0x143/0x180 mm/kasan/report.c:601
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kasan_check_range+0x282/0x290 mm/kasan/generic.c:189
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__asan_memcpy+0x40/0x70 mm/kasan/shadow.c:106
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memcpy_from_page include/linux/highmem.h:423 [inline]
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hfs_bnode_read fs/hfs/bnode.c:35 [inline]
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hfs_bnode_read_key+0x314/0x450 fs/hfs/bnode.c:70
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hfs_brec_insert+0x7f3/0xbd0 fs/hfs/brec.c:159
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hfs_cat_create+0x41d/0xa50 fs/hfs/catalog.c:118
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hfs_mkdir+0x6c/0xe0 fs/hfs/dir.c:232
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vfs_mkdir+0x2f9/0x4f0 fs/namei.c:4257
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do_mkdirat+0x264/0x3a0 fs/namei.c:4280
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__do_sys_mkdir fs/namei.c:4300 [inline]
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__se_sys_mkdir fs/namei.c:4298 [inline]
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__x64_sys_mkdir+0x6c/0x80 fs/namei.c:4298
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do_syscall_x64 arch/x86/entry/common.c:52 [inline]
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do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
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entry_SYSCALL_64_after_hwframe+0x77/0x7f
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RIP: 0033:0x7fbdd6057a99
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Add a check for key length in hfs_bnode_read_key to prevent
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out-of-bounds memory access. If the key length is invalid, the
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key buffer is cleared, improving stability and reliability.
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Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
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Reported-by: syzbot+5f3a973ed3dfb85a6683@syzkaller.appspotmail.com
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Closes: https://syzkaller.appspot.com/bug?extid=5f3a973ed3dfb85a6683
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Cc: stable@vger.kernel.org
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Signed-off-by: Vasiliy Kovalev <kovalev@altlinux.org>
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Link: https://lore.kernel.org/20241019191303.24048-1-kovalev@altlinux.org
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Reviewed-by: Cengiz Can <cengiz.can@canonical.com>
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Signed-off-by: Christian Brauner <brauner@kernel.org>
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---
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fs/hfs/bnode.c | 6 ++++++
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fs/hfsplus/bnode.c | 6 ++++++
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2 files changed, 12 insertions(+)
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--- a/fs/hfs/bnode.c
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+++ b/fs/hfs/bnode.c
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@@ -67,6 +67,12 @@ void hfs_bnode_read_key(struct hfs_bnode
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else
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key_len = tree->max_key_len + 1;
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+ if (key_len > sizeof(hfs_btree_key) || key_len < 1) {
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+ memset(key, 0, sizeof(hfs_btree_key));
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+ pr_err("hfs: Invalid key length: %d\n", key_len);
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+ return;
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+ }
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+
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hfs_bnode_read(node, key, off, key_len);
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}
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--- a/fs/hfsplus/bnode.c
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+++ b/fs/hfsplus/bnode.c
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@@ -67,6 +67,12 @@ void hfs_bnode_read_key(struct hfs_bnode
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else
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key_len = tree->max_key_len + 2;
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+ if (key_len > sizeof(hfsplus_btree_key) || key_len < 1) {
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+ memset(key, 0, sizeof(hfsplus_btree_key));
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+ pr_err("hfsplus: Invalid key length: %d\n", key_len);
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+ return;
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+ }
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+
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hfs_bnode_read(node, key, off, key_len);
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}
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