Wind River Support Network

Description

In the Linux kernel, the following vulnerability has been resolved:EOL][EOL]jffs2: check jffs2_prealloc_raw_node_refs() result in few other places[EOL][EOL]Fuzzing hit another invalid pointer dereference due to the lack of[EOL]checking whether jffs2_prealloc_raw_node_refs() completed successfully.[EOL]Subsequent logic implies that the node refs have been allocated.[EOL][EOL]Handle that. The code is ready for propagating the error upwards.[EOL][EOL]KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f][EOL]CPU: 1 PID: 5835 Comm: syz-executor145 Not tainted 5.10.234-syzkaller #0[EOL]Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014[EOL]RIP: 0010:jffs2_link_node_ref+0xac/0x690 fs/jffs2/nodelist.c:600[EOL]Call Trace:[EOL] jffs2_mark_erased_block fs/jffs2/erase.c:460 [inline][EOL] jffs2_erase_pending_blocks+0x688/0x1860 fs/jffs2/erase.c:118[EOL] jffs2_garbage_collect_pass+0x638/0x1a00 fs/jffs2/gc.c:253[EOL] jffs2_reserve_space+0x3f4/0xad0 fs/jffs2/nodemgmt.c:167[EOL] jffs2_write_inode_range+0x246/0xb50 fs/jffs2/write.c:362[EOL] jffs2_write_end+0x712/0x1110 fs/jffs2/file.c:302[EOL] generic_perform_write+0x2c2/0x500 mm/filemap.c:3347[EOL] __generic_file_write_iter+0x252/0x610 mm/filemap.c:3465[EOL] generic_file_write_iter+0xdb/0x230 mm/filemap.c:3497[EOL] call_write_iter include/linux/fs.h:2039 [inline][EOL] do_iter_readv_writev+0x46d/0x750 fs/read_write.c:740[EOL] do_iter_write+0x18c/0x710 fs/read_write.c:866[EOL] vfs_writev+0x1db/0x6a0 fs/read_write.c:939[EOL] do_pwritev fs/read_write.c:1036 [inline][EOL] __do_sys_pwritev fs/read_write.c:1083 [inline][EOL] __se_sys_pwritev fs/read_write.c:1078 [inline][EOL] __x64_sys_pwritev+0x235/0x310 fs/read_write.c:1078[EOL] do_syscall_64+0x30/0x40 arch/x86/entry/common.c:46[EOL] entry_SYSCALL_64_after_hwframe+0x67/0xd1[EOL][EOL]Found by Linux Verification Center (linuxtesting.org) with Syzkaller.

CREATE(Triage):(User=admin) [CVE-2025-38328 (https://nvd.nist.gov/vuln/detail/CVE-2025-38328)