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Message-Id: <20250415175057.392984-1-duttaditya18@gmail.com>
Date: Tue, 15 Apr 2025 23:20:57 +0530
From: Aditya Dutt <duttaditya18@...il.com>
To: syzbot+ccb458b6679845ee0bae@...kaller.appspotmail.com
Cc: Aditya Dutt <duttaditya18@...il.com>,
syzkaller-lts-bugs@...glegroups.com,
linux-kernel@...r.kernel.org
Subject: Test if it's still reproducible
#syz test git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git linux-5.15.y
diff --git a/fs/jfs/jfs_dinode.h b/fs/jfs/jfs_dinode.h
index 5fa9fd594115..e630810a48c6 100644
--- a/fs/jfs/jfs_dinode.h
+++ b/fs/jfs/jfs_dinode.h
@@ -96,7 +96,7 @@ struct dinode {
#define di_gengen u._file._u1._imap._gengen
union {
- xtpage_t _xtroot;
+ xtroot_t _xtroot;
struct {
u8 unused[16]; /* 16: */
dxd_t _dxd; /* 16: */
diff --git a/fs/jfs/jfs_imap.c b/fs/jfs/jfs_imap.c
index 937ca07b58b1..5a360cd54098 100644
--- a/fs/jfs/jfs_imap.c
+++ b/fs/jfs/jfs_imap.c
@@ -671,7 +671,7 @@ int diWrite(tid_t tid, struct inode *ip)
* This is the special xtree inside the directory for storing
* the directory table
*/
- xtpage_t *p, *xp;
+ xtroot_t *p, *xp;
xad_t *xad;
jfs_ip->xtlid = 0;
@@ -685,7 +685,7 @@ int diWrite(tid_t tid, struct inode *ip)
* copy xtree root from inode to dinode:
*/
p = &jfs_ip->i_xtroot;
- xp = (xtpage_t *) &dp->di_dirtable;
+ xp = (xtroot_t *) &dp->di_dirtable;
lv = ilinelock->lv;
for (n = 0; n < ilinelock->index; n++, lv++) {
memcpy(&xp->xad[lv->offset], &p->xad[lv->offset],
@@ -714,7 +714,7 @@ int diWrite(tid_t tid, struct inode *ip)
* regular file: 16 byte (XAD slot) granularity
*/
if (type & tlckXTREE) {
- xtpage_t *p, *xp;
+ xtroot_t *p, *xp;
xad_t *xad;
/*
diff --git a/fs/jfs/jfs_incore.h b/fs/jfs/jfs_incore.h
index a466ec41cfbb..852f4c1f2946 100644
--- a/fs/jfs/jfs_incore.h
+++ b/fs/jfs/jfs_incore.h
@@ -66,7 +66,7 @@ struct jfs_inode_info {
lid_t xtlid; /* lid of xtree lock on directory */
union {
struct {
- xtpage_t _xtroot; /* 288: xtree root */
+ xtroot_t _xtroot; /* 288: xtree root */
struct inomap *_imap; /* 4: inode map header */
} file;
struct {
diff --git a/fs/jfs/jfs_txnmgr.c b/fs/jfs/jfs_txnmgr.c
index dca8edd2378c..7d19324f5a83 100644
--- a/fs/jfs/jfs_txnmgr.c
+++ b/fs/jfs/jfs_txnmgr.c
@@ -778,7 +778,7 @@ struct tlock *txLock(tid_t tid, struct inode *ip, struct metapage * mp,
if (mp->xflag & COMMIT_PAGE)
p = (xtpage_t *) mp->data;
else
- p = &jfs_ip->i_xtroot;
+ p = (xtpage_t *) &jfs_ip->i_xtroot;
xtlck->lwm.offset =
le16_to_cpu(p->header.nextindex);
}
@@ -1708,7 +1708,7 @@ static void xtLog(struct jfs_log * log, struct tblock * tblk, struct lrd * lrd,
if (tlck->type & tlckBTROOT) {
lrd->log.redopage.type |= cpu_to_le16(LOG_BTROOT);
- p = &JFS_IP(ip)->i_xtroot;
+ p = (xtpage_t *) &JFS_IP(ip)->i_xtroot;
if (S_ISDIR(ip->i_mode))
lrd->log.redopage.type |=
cpu_to_le16(LOG_DIR_XTREE);
diff --git a/fs/jfs/jfs_xtree.c b/fs/jfs/jfs_xtree.c
index 3148e9b35f3b..34db519933b4 100644
--- a/fs/jfs/jfs_xtree.c
+++ b/fs/jfs/jfs_xtree.c
@@ -1224,7 +1224,7 @@ xtSplitRoot(tid_t tid,
struct xtlock *xtlck;
int rc;
- sp = &JFS_IP(ip)->i_xtroot;
+ sp = (xtpage_t *) &JFS_IP(ip)->i_xtroot;
INCREMENT(xtStat.split);
@@ -3059,7 +3059,7 @@ static int xtRelink(tid_t tid, struct inode *ip, xtpage_t * p)
*/
void xtInitRoot(tid_t tid, struct inode *ip)
{
- xtpage_t *p;
+ xtroot_t *p;
/*
* acquire a transaction lock on the root
diff --git a/fs/jfs/jfs_xtree.h b/fs/jfs/jfs_xtree.h
index 5f51be8596b3..dc9b5f8d6385 100644
--- a/fs/jfs/jfs_xtree.h
+++ b/fs/jfs/jfs_xtree.h
@@ -65,24 +65,33 @@ struct xadlist {
#define XTPAGEMAXSLOT 256
#define XTENTRYSTART 2
-/*
- * xtree page:
- */
-typedef union {
- struct xtheader {
- __le64 next; /* 8: */
- __le64 prev; /* 8: */
+struct xtheader {
+ __le64 next; /* 8: */
+ __le64 prev; /* 8: */
- u8 flag; /* 1: */
- u8 rsrvd1; /* 1: */
- __le16 nextindex; /* 2: next index = number of entries */
- __le16 maxentry; /* 2: max number of entries */
- __le16 rsrvd2; /* 2: */
+ u8 flag; /* 1: */
+ u8 rsrvd1; /* 1: */
+ __le16 nextindex; /* 2: next index = number of entries */
+ __le16 maxentry; /* 2: max number of entries */
+ __le16 rsrvd2; /* 2: */
- pxd_t self; /* 8: self */
- } header; /* (32) */
+ pxd_t self; /* 8: self */
+};
+/*
+ * xtree root (in inode):
+ */
+typedef union {
+ struct xtheader header;
xad_t xad[XTROOTMAXSLOT]; /* 16 * maxentry: xad array */
+} xtroot_t;
+
+/*
+ * xtree page:
+ */
+typedef union {
+ struct xtheader header;
+ xad_t xad[XTPAGEMAXSLOT]; /* 16 * maxentry: xad array */
} xtpage_t;
/*
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