Subject ext4: avoid infinite loops caused by data conflicts
Author eadavis@qq.com
Date 2026-03-02 12:51:20 +0000 UTC
Version
Cc brauner@kernel.org eadavis@qq.com jack@suse.cz linux-ext4@vger.kernel.org linux-fsdevel@vger.kernel.org linux-kernel@vger.kernel.org syzbot@lists.linux.dev syzbot@syzkaller.appspotmail.com syzkaller-bugs@googlegroups.com viro@zeniv.linux.org.uk
Patches (1)
Name Content [All]
[PATCH v2] ext4: avoid infinite loops caused by data conflicts [Body]
Series Summary
6 Findings
finding KASAN: slab-out-of-bounds Read in ext4_xattr_block_csum_set
Log Syz Repro
finding KASAN: slab-use-after-free Read in ext4_xattr_block_csum_set
Log Syz Repro C Repro
finding KASAN: slab-use-after-free Read in ext4_xattr_set_entry
Log Syz Repro
finding KASAN: use-after-free Read in ext4_xattr_block_csum_set
Log Syz Repro C Repro
finding KASAN: use-after-free Read in ext4_xattr_set_entry
Log Syz Repro C Repro
finding WARNING in ext4_xattr_block_set
Log Syz Repro C Repro
Sessions
Session 2026-03-02
6 Findings
ID (for dev) b5bc0737-b6f7-4529-a178-3ba625517512
Status finished
Triaged OK [Log]
Execution Log [Link]
Test Base Patched Verdict
[KASAN] Build Base 11439c4635edd669ae435eec308f4ab8a0804808 [Config] passed [Log]
[KASAN] Boot test: Base 11439c4635edd669ae435eec308f4ab8a0804808 [Config] passed [Log]
[KASAN] Build Patched 11439c4635edd669ae435eec308f4ab8a0804808 [Config] [patched] passed [Log]
[KASAN] Boot test: Patched 11439c4635edd669ae435eec308f4ab8a0804808 [Config] [patched] passed [Log]
[KASAN] Fuzz 11439c4635edd669ae435eec308f4ab8a0804808 [Config] 11439c4635edd669ae435eec308f4ab8a0804808 [Config] [patched] passed [Log] [Artifacts]
finding KASAN: slab-out-of-bounds Read in ext4_xattr_block_csum_set
Log Syz Repro
finding KASAN: slab-use-after-free Read in ext4_xattr_block_csum_set
Log Syz Repro C Repro
finding KASAN: slab-use-after-free Read in ext4_xattr_set_entry
Log Syz Repro
finding KASAN: use-after-free Read in ext4_xattr_block_csum_set
Log Syz Repro C Repro
finding KASAN: use-after-free Read in ext4_xattr_set_entry
Log Syz Repro C Repro
finding WARNING in ext4_xattr_block_set
Log Syz Repro C Repro