CVE-2022-48635— fsdax: Fix infinite loop in dax_iomap_rw()
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I. Basic Information for CVE-2022-48635
Vulnerability Information
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Vulnerability Title
fsdax: Fix infinite loop in dax_iomap_rw()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: fsdax: Fix infinite loop in dax_iomap_rw() I got an infinite loop and a WARNING report when executing a tail command in virtiofs. WARNING: CPU: 10 PID: 964 at fs/iomap/iter.c:34 iomap_iter+0x3a2/0x3d0 Modules linked in: CPU: 10 PID: 964 Comm: tail Not tainted 5.19.0-rc7 Call Trace: <TASK> dax_iomap_rw+0xea/0x620 ? __this_cpu_preempt_check+0x13/0x20 fuse_dax_read_iter+0x47/0x80 fuse_file_read_iter+0xae/0xd0 new_sync_read+0xfe/0x180 ? 0xffffffff81000000 vfs_read+0x14d/0x1a0 ksys_read+0x6d/0xf0 __x64_sys_read+0x1a/0x20 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd The tail command will call read() with a count of 0. In this case, iomap_iter() will report this WARNING, and always return 1 which casuing the infinite loop in dax_iomap_rw(). Fixing by checking count whether is 0 in dax_iomap_rw().
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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dax_iomap_rw函数中存在无限循环问题。
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-2022-48635
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Same Patch Batch · Linux · 2024-04-28 · 40 CVEs total
| CVE-2022-48639 | net: sched: fix possible refcount leak in tc_new_tfilter() | |
| CVE-2022-48648 | sfc: fix null pointer dereference in efx_hard_start_xmit | |
| CVE-2022-48647 | sfc: fix TX channel offset when using legacy interrupts | |
| CVE-2022-48646 | sfc/siena: fix null pointer dereference in efx_hard_start_xmit | |
| CVE-2022-48645 | net: enetc: deny offload of tc-based TSN features on VF interfaces | |
| CVE-2022-48644 | net/sched: taprio: avoid disabling offload when it was never enabled | |
| CVE-2022-48643 | netfilter: nf_tables: fix nft_counters_enabled underflow at nf_tables_addchain() | |
| CVE-2022-48642 | netfilter: nf_tables: fix percpu memory leak at nf_tables_addchain() | |
| CVE-2022-48641 | netfilter: ebtables: fix memory leak when blob is malformed | |
| CVE-2022-48640 | bonding: fix NULL deref in bond_rr_gen_slave_id | |
| CVE-2022-48649 | mm/slab_common: fix possible double free of kmem_cache | |
| CVE-2022-48638 | cgroup: cgroup_get_from_id() must check the looked-up kn is a directory | |
| CVE-2022-48637 | bnxt: prevent skb UAF after handing over to PTP worker | |
| CVE-2022-48636 | s390/dasd: fix Oops in dasd_alias_get_start_dev due to missing pavgroup | |
| CVE-2022-48634 | drm/gma500: Fix BUG: sleeping function called from invalid context errors | |
| CVE-2022-48633 | drm/gma500: Fix WARN_ON(lock->magic != lock) error | |
| CVE-2022-48632 | i2c: mlxbf: prevent stack overflow in mlxbf_i2c_smbus_start_transaction() | |
| CVE-2022-48631 | ext4: fix bug in extents parsing when eh_entries == 0 and eh_depth > 0 | |
| CVE-2024-26928 | smb: client: fix potential UAF in cifs_debug_files_proc_show() | |
| CVE-2024-26927 | ASoC: SOF: Add some bounds checking to firmware data |
Showing top 20 of 40 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
Same vendor: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
V. Comments for CVE-2022-48635
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