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kernel: bump 5.15 to 5.15.173
Removed because they are upstream: generic/backport-5.15/430-v6.3-udf-Allocate-name-buffer-in-directory-iterator-on-he.patch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.15.y&id=5ea4b73e268bf9e1d26271943f2f7c4517253395 generic/backport-5.15/431-v6.3-udf-Avoid-directory-type-conversion-failure-due-to-E.patch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.15.y&id=8b1d55e43cee631e142d46ee94c91ccd894341e9 Link: https://github.com/openwrt/openwrt/pull/16999 Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This commit is contained in:
Hauke Mehrtens
parent
265d9112b3
commit
cafbecf853
@ -1,2 +1,2 @@
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LINUX_VERSION-5.15 = .172
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LINUX_KERNEL_HASH-5.15.172 = efa2245809c1b0c8d028b67b800fdd44c9bba7800b154ee492c2ba18ed33844d
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LINUX_VERSION-5.15 = .173
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LINUX_KERNEL_HASH-5.15.173 = 8a4b2a47ccc9b208b2b6ed9a216ea1a5eb12852c723bec1a04de9e671a1d7da8
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@ -33,7 +33,7 @@ Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
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#define USB_VENDOR_ID_BELKIN 0x050d
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#define USB_DEVICE_ID_FLIP_KVM 0x3201
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@@ -1337,6 +1340,9 @@
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@@ -1338,6 +1341,9 @@
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#define USB_VENDOR_ID_XAT 0x2505
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#define USB_DEVICE_ID_XAT_CSR 0x0220
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@ -414,7 +414,7 @@ Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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#ifndef arch_wants_old_prefaulted_pte
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static inline bool arch_wants_old_prefaulted_pte(void)
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{
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@@ -2808,7 +2796,7 @@ static inline int cow_user_page(struct p
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@@ -2819,7 +2807,7 @@ static inline int cow_user_page(struct p
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* On architectures with software "accessed" bits, we would
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* take a double page fault, so mark it accessed here.
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*/
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@ -612,7 +612,7 @@ Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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mem_cgroup_id_remove(memcg);
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--- a/mm/memory.c
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+++ b/mm/memory.c
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@@ -4821,6 +4821,27 @@ static inline void mm_account_fault(stru
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@@ -4832,6 +4832,27 @@ static inline void mm_account_fault(stru
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perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, regs, address);
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}
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@ -640,7 +640,7 @@ Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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/*
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* By the time we get here, we already hold the mm semaphore
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*
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@@ -4852,11 +4873,15 @@ vm_fault_t handle_mm_fault(struct vm_are
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@@ -4863,11 +4884,15 @@ vm_fault_t handle_mm_fault(struct vm_are
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if (flags & FAULT_FLAG_USER)
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mem_cgroup_enter_user_fault();
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@ -82,7 +82,7 @@ Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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#include <linux/sched/mm.h>
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#include <linux/sched/coredump.h>
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#include <linux/sched/numa_balancing.h>
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@@ -1353,8 +1354,7 @@ again:
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@@ -1364,8 +1365,7 @@ again:
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force_flush = 1;
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set_page_dirty(page);
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}
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@ -92,7 +92,7 @@ Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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mark_page_accessed(page);
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}
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rss[mm_counter(page)]--;
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@@ -4824,8 +4824,8 @@ static inline void mm_account_fault(stru
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@@ -4835,8 +4835,8 @@ static inline void mm_account_fault(stru
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#ifdef CONFIG_LRU_GEN
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static void lru_gen_enter_fault(struct vm_area_struct *vma)
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{
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@ -1,95 +0,0 @@
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Jan Kara <jack@suse.cz>
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Date: Tue, 20 Dec 2022 12:38:45 +0100
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Subject: udf: Allocate name buffer in directory iterator on heap
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commit 0aba4860b0d0216a1a300484ff536171894d49d8 upstream.
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Currently we allocate name buffer in directory iterators (struct
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udf_fileident_iter) on stack. These structures are relatively large
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(some 360 bytes on 64-bit architectures). For udf_rename() which needs
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to keep three of these structures in parallel the stack usage becomes
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rather heavy - 1536 bytes in total. Allocate the name buffer in the
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iterator from heap to avoid excessive stack usage.
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Link: https://lore.kernel.org/all/202212200558.lK9x1KW0-lkp@intel.com
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Reported-by: kernel test robot <lkp@intel.com>
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Signed-off-by: Jan Kara <jack@suse.cz>
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[Add extra include linux/slab.h]
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Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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---
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fs/udf/directory.c | 24 ++++++++++++++++--------
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fs/udf/udfdecl.h | 2 +-
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2 files changed, 17 insertions(+), 9 deletions(-)
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--- a/fs/udf/directory.c
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+++ b/fs/udf/directory.c
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@@ -19,6 +19,7 @@
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#include <linux/bio.h>
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#include <linux/crc-itu-t.h>
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#include <linux/iversion.h>
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+#include <linux/slab.h>
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static int udf_verify_fi(struct udf_fileident_iter *iter)
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{
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@@ -248,9 +249,14 @@ int udf_fiiter_init(struct udf_fileident
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iter->elen = 0;
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iter->epos.bh = NULL;
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iter->name = NULL;
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+ iter->namebuf = kmalloc(UDF_NAME_LEN_CS0, GFP_KERNEL);
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+ if (!iter->namebuf)
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+ return -ENOMEM;
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- if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB)
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- return udf_copy_fi(iter);
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+ if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
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+ err = udf_copy_fi(iter);
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+ goto out;
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+ }
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if (inode_bmap(dir, iter->pos >> dir->i_blkbits, &iter->epos,
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&iter->eloc, &iter->elen, &iter->loffset) !=
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@@ -260,17 +266,17 @@ int udf_fiiter_init(struct udf_fileident
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udf_err(dir->i_sb,
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"position %llu not allocated in directory (ino %lu)\n",
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(unsigned long long)pos, dir->i_ino);
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- return -EFSCORRUPTED;
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+ err = -EFSCORRUPTED;
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+ goto out;
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}
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err = udf_fiiter_load_bhs(iter);
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if (err < 0)
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- return err;
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+ goto out;
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err = udf_copy_fi(iter);
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- if (err < 0) {
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+out:
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+ if (err < 0)
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udf_fiiter_release(iter);
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- return err;
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- }
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- return 0;
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+ return err;
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}
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int udf_fiiter_advance(struct udf_fileident_iter *iter)
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@@ -307,6 +313,8 @@ void udf_fiiter_release(struct udf_filei
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brelse(iter->bh[0]);
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brelse(iter->bh[1]);
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iter->bh[0] = iter->bh[1] = NULL;
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+ kfree(iter->namebuf);
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+ iter->namebuf = NULL;
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}
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static void udf_copy_to_bufs(void *buf1, int len1, void *buf2, int len2,
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--- a/fs/udf/udfdecl.h
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+++ b/fs/udf/udfdecl.h
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@@ -99,7 +99,7 @@ struct udf_fileident_iter {
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struct extent_position epos; /* Position after the above extent */
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struct fileIdentDesc fi; /* Copied directory entry */
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uint8_t *name; /* Pointer to entry name */
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- uint8_t namebuf[UDF_NAME_LEN_CS0]; /* Storage for entry name in case
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+ uint8_t *namebuf; /* Storage for entry name in case
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* the name is split between two blocks
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*/
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};
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@ -1,40 +0,0 @@
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Jan Kara <jack@suse.cz>
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Date: Thu, 9 Feb 2023 10:33:09 +0100
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Subject: udf: Avoid directory type conversion failure due to ENOMEM
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commit df97f64dfa317a5485daf247b6c043a584ef95f9 upstream.
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When converting directory from in-ICB to normal format, the last
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iteration through the directory fixing up directory enteries can fail
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due to ENOMEM. We do not expect this iteration to fail since the
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directory is already verified to be correct and it is difficult to undo
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the conversion at this point. So just use GFP_NOFAIL to make sure the
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small allocation cannot fail.
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Reported-by: syzbot+111eaa994ff74f8d440f@syzkaller.appspotmail.com
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Fixes: 0aba4860b0d0 ("udf: Allocate name buffer in directory iterator on heap")
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Signed-off-by: Jan Kara <jack@suse.cz>
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Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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---
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fs/udf/directory.c | 9 ++++++---
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1 file changed, 6 insertions(+), 3 deletions(-)
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--- a/fs/udf/directory.c
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+++ b/fs/udf/directory.c
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@@ -249,9 +249,12 @@ int udf_fiiter_init(struct udf_fileident
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iter->elen = 0;
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iter->epos.bh = NULL;
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iter->name = NULL;
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- iter->namebuf = kmalloc(UDF_NAME_LEN_CS0, GFP_KERNEL);
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- if (!iter->namebuf)
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- return -ENOMEM;
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+ /*
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+ * When directory is verified, we don't expect directory iteration to
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+ * fail and it can be difficult to undo without corrupting filesystem.
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+ * So just do not allow memory allocation failures here.
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+ */
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+ iter->namebuf = kmalloc(UDF_NAME_LEN_CS0, GFP_KERNEL | __GFP_NOFAIL);
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if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
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err = udf_copy_fi(iter);
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