CVE-2022-49352— ext4: fix warning in ext4_handle_inode_extension
Possible ATT&CK Techniques 1AI
T1499.003 · Application Exhaustion FloodAffected Version Matrix 12
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | b1b4705d54abedfd69dcdf42779c521aa1e0fbd3< adf490083ca52ebfb0b2fe64ff1ead00c0452dd7 | affected |
b1b4705d54abedfd69dcdf42779c521aa1e0fbd3< b81d2ff6885e38fc745eeaf9565775055778fc0b | affected | ||
b1b4705d54abedfd69dcdf42779c521aa1e0fbd3< e383c2aa5f02ab571530dc5c5696479672478c25 | affected | ||
b1b4705d54abedfd69dcdf42779c521aa1e0fbd3< 1bcce88da60eccc946c0f4ed942b0f08cd565778 | affected | ||
b1b4705d54abedfd69dcdf42779c521aa1e0fbd3< f4534c9fc94d22383f187b9409abb3f9df2e3db3 | affected | ||
5.5 | affected | ||
< 5.5 | unaffected | ||
5.10.121≤ 5.10.* | unaffected | ||
| … +4 more rows | |||
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I. Basic Information for CVE-2022-49352
Vulnerability Information
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Vulnerability Title
ext4: fix warning in ext4_handle_inode_extension
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ext4: fix warning in ext4_handle_inode_extension We got issue as follows: EXT4-fs error (device loop0) in ext4_reserve_inode_write:5741: Out of memory EXT4-fs error (device loop0): ext4_setattr:5462: inode #13: comm syz-executor.0: mark_inode_dirty error EXT4-fs error (device loop0) in ext4_setattr:5519: Out of memory EXT4-fs error (device loop0): ext4_ind_map_blocks:595: inode #13: comm syz-executor.0: Can't allocate blocks for non-extent mapped inodes with bigalloc ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4361 at fs/ext4/file.c:301 ext4_file_write_iter+0x11c9/0x1220 Modules linked in: CPU: 1 PID: 4361 Comm: syz-executor.0 Not tainted 5.10.0+ #1 RIP: 0010:ext4_file_write_iter+0x11c9/0x1220 RSP: 0018:ffff924d80b27c00 EFLAGS: 00010282 RAX: ffffffff815a3379 RBX: 0000000000000000 RCX: 000000003b000000 RDX: ffff924d81601000 RSI: 00000000000009cc RDI: 00000000000009cd RBP: 000000000000000d R08: ffffffffbc5a2c6b R09: 0000902e0e52a96f R10: ffff902e2b7c1b40 R11: ffff902e2b7c1b40 R12: 000000000000000a R13: 0000000000000001 R14: ffff902e0e52aa10 R15: ffffffffffffff8b FS: 00007f81a7f65700(0000) GS:ffff902e3bc80000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffff600400 CR3: 000000012db88001 CR4: 00000000003706e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_iter_readv_writev+0x2e5/0x360 do_iter_write+0x112/0x4c0 do_pwritev+0x1e5/0x390 __x64_sys_pwritev2+0x7e/0xa0 do_syscall_64+0x37/0x50 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Above issue may happen as follows: Assume inode.i_size=4096 EXT4_I(inode)->i_disksize=4096 step 1: set inode->i_isize = 8192 ext4_setattr if (attr->ia_size != inode->i_size) EXT4_I(inode)->i_disksize = attr->ia_size; rc = ext4_mark_inode_dirty ext4_reserve_inode_write ext4_get_inode_loc __ext4_get_inode_loc sb_getblk --> return -ENOMEM ... if (!error) ->will not update i_size i_size_write(inode, attr->ia_size); Now: inode.i_size=4096 EXT4_I(inode)->i_disksize=8192 step 2: Direct write 4096 bytes ext4_file_write_iter ext4_dio_write_iter iomap_dio_rw ->return error if (extend) ext4_handle_inode_extension WARN_ON_ONCE(i_size_read(inode) < EXT4_I(inode)->i_disksize); ->Then trigger warning. To solve above issue, if mark inode dirty failed in ext4_setattr just set 'EXT4_I(inode)->i_disksize' with old value.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于ext4_handle_inode_extension未正确处理内存不足，可能导致内核警告。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2022-49352
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|---|
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Patches & Fixes for CVE-2022-49352 (6)
Same Patch Batch · Linux · 2025-02-26 · 706 CVEs total
| CVE-2022-49561 | 9.8 CRITICAL | netfilter: conntrack: re-fetch conntrack after insertion |
| CVE-2022-49149 | 9.8 CRITICAL | rxrpc: Fix call timer start racing with call destruction |
| CVE-2022-49407 | 9.8 CRITICAL | dlm: fix plock invalid read |
| CVE-2022-49356 | 9.8 CRITICAL | SUNRPC: Trap RDMA segment overflows |
| CVE-2022-49362 | 9.8 CRITICAL | NFSD: Fix potential use-after-free in nfsd_file_put() |
| CVE-2022-49280 | 9.8 CRITICAL | NFSD: prevent underflow in nfssvc_decode_writeargs() |
| CVE-2022-49260 | 9.8 CRITICAL | crypto: hisilicon/sec - fix the aead software fallback for engine |
| CVE-2022-49418 | 9.8 CRITICAL | NFSv4: Fix free of uninitialized nfs4_label on referral lookup. |
| CVE-2022-49201 | 9.8 CRITICAL | ibmvnic: fix race between xmit and reset |
| CVE-2022-49194 | 9.8 CRITICAL | net: bcmgenet: Use stronger register read/writes to assure ordering |
| CVE-2022-49093 | 9.8 CRITICAL | skbuff: fix coalescing for page_pool fragment recycling |
| CVE-2022-49094 | 9.8 CRITICAL | net/tls: fix slab-out-of-bounds bug in decrypt_internal |
| CVE-2022-49058 | 9.1 CRITICAL | cifs: potential buffer overflow in handling symlinks |
| CVE-2022-49416 | 8.8 HIGH | wifi: mac80211: fix use-after-free in chanctx code |
| CVE-2022-49535 | 8.8 HIGH | scsi: lpfc: Fix null pointer dereference after failing to issue FLOGI and PLOGI |
| CVE-2022-49238 | 8.8 HIGH | ath11k: free peer for station when disconnect from AP for QCA6390/WCN6855 |
| CVE-2022-49519 | 8.8 HIGH | ath10k: skip ath10k_halt during suspend for driver state RESTARTING |
| CVE-2022-49138 | 8.8 HIGH | Bluetooth: hci_event: Ignore multiple conn complete events |
| CVE-2022-49471 | 8.8 HIGH | rtw89: cfo: check mac_id to avoid out-of-bounds |
| CVE-2022-49159 | 8.8 HIGH | scsi: qla2xxx: Implement ref count for SRB |
Showing top 20 of 706 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-74579
netfilter: nft_payload: fix mask build for partial field off - CVE-2026-74578
crypto: algif_skcipher - force synchronous processing on tre - CVE-2026-74577
net: mpls: initialize rtm_tos in mpls_getroute() - CVE-2026-74576
mm/slab: prevent unbounded recursion in free path with new k - CVE-2026-74574
dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev
Same vendor: Linux
- CVE-2026-74579
netfilter: nft_payload: fix mask build for partial field off - CVE-2026-74578
crypto: algif_skcipher - force synchronous processing on tre - CVE-2026-74577
net: mpls: initialize rtm_tos in mpls_getroute() - CVE-2026-74576
mm/slab: prevent unbounded recursion in free path with new k - CVE-2026-74574
dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev
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